release: v1.0.3

Bump version, update CHANGELOG, and retake README screenshots
(Jobs, History, Settings) to match the current GUI.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.claude/commands/review-project.md

@@ -1,26 +0,0 @@
----
-description: Review the project as a whole against the agenda in docs/REVIEW.md
----
-
-Perform a whole-project review of GoSentry.
-
-Read [docs/REVIEW.md](../../docs/REVIEW.md) first — it is the agenda, and its
-nine sections are the areas to cover. Read [docs/STANDARDS.md](../../docs/STANDARDS.md)
-and [docs/ARCHITECTURE.md](../../docs/ARCHITECTURE.md) for the rules and
-contracts the code is checked against.
-
-$ARGUMENTS narrows the review when given — a package path, a file, or the name
-of an agenda section. With no arguments, sweep the whole `src/` tree.
-
-Rules for the report:
-
-- Anything listed under "Intentional behavior" in STANDARDS.md is not a finding.
-  If you believe such an entry is now wrong, say so explicitly as a challenge to
-  the decision rather than reporting it as a bug.
-- Verify before reporting. Read the surrounding code and, where cheap, confirm
-  the behavior with a test rather than reasoning about it alone.
-- Group findings by agenda section, most severe first, each with the file and
-  line and what would actually go wrong.
-- Report honestly that a section is clean rather than inventing something for it.
-- Do not fix anything during the review. Report first; apply fixes only when
-  asked, following "What happens to the findings" in REVIEW.md.

CLAUDE.md

@@ -8,16 +8,11 @@ application service, scheduler, storage, and command runner in one binary.
 - [docs/STANDARDS.md](docs/STANDARDS.md) — **required.** Code-quality rules and
   the list of intentional behavior. Do not "fix" anything listed there as
   intentional; if a change contradicts it, update the document in the same commit.
-- [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md) — package contracts and event flow.
+- [docs/ARCHITECTURE.md](docs/ARCHITECTURE.md) — package contracts, event flow, and
+  §Platform layer (why and where OS-specific code lives).
 - [docs/TESTS.md](docs/TESTS.md) — test layout and conventions.
 - [docs/ROADMAP.md](docs/ROADMAP.md) — deliberately out of scope.
 
-## Reviewing the project
-
-When the user asks for a review of the project (rather than of a specific
-diff), follow [docs/REVIEW.md](docs/REVIEW.md) — it is the agenda, and the
-`/review-project` command runs the same thing. Do not improvise a checklist.
-
 ## Key rules (full list in STANDARDS.md)
 
 - `src/app.Service` is the sole owner of job and runtime state; the UI reads it

README.md

@@ -14,8 +14,11 @@ creating, grouping, pausing, running, and monitoring scheduled shell commands.
 
 <table>
 <tr>
-<td align="center"><img src="images/screenshot_jobs.PNG" alt="Jobs tab"><br><em>Jobs tab — job list with details panel and run statistics.</em></td>
+<td align="center"><img src="docs/screenshots/screenshot_jobs.PNG" alt="Jobs tab"><br><em>Jobs tab — job list with details panel and run statistics.</em></td>
-<td align="center"><img src="images/screenshot_settings.PNG" alt="Settings tab"><br><em>Settings tab — application, queue, storage, and version info.</em></td>
+<td align="center"><img src="docs/screenshots/screenshot_history.PNG" alt="History tab"><br><em>History tab — past runs with trigger, state, and log file.</em></td>
+</tr>
+<tr>
+<td align="center" colspan="2"><img src="docs/screenshots/screenshot_settings.PNG" alt="Settings tab"><br><em>Settings tab — application, queue, storage, and version info.</em></td>
 </tr>
 </table>
 
@@ -25,13 +28,15 @@ creating, grouping, pausing, running, and monitoring scheduled shell commands.
 - Job definitions stored in a clean, hand-editable `jobs.json`.
 - `@every` intervals and standard 5-field cron expressions.
 - Manual and scheduled command runs.
-- Parallel or sequential execution mode; configurable overlap policy (skip or queue).
+- Parallel or sequential execution mode; overlap policy (skip or queue) set globally or per job.
+- Run timeout, off by default, set globally or per job.
 - Per-run `.log` files with stdout/stderr capture.
 - Log cleanup by maximum file count and maximum age.
 - Global pause/resume for scheduled job execution (manual runs remain available).
 - Desktop notifications on job failure.
 - Windows tray icon: left-click to show the window, right-click for the menu.
 - Autostart on login (Windows shortcut; Linux XDG desktop entry).
+- Detailed or compact job list, and a system or branded theme; both are remembered.
 
 ## Platforms
 
@@ -49,7 +54,6 @@ GoSentry is built and tested on **Windows** and **Linux**:
 - [Roadmap](docs/ROADMAP.md) — planned work larger than a single bug fix
 - [Architecture](docs/ARCHITECTURE.md) — component interaction model
 - [Standards](docs/STANDARDS.md) — quality rules and intentional behavior
-- [Review](docs/REVIEW.md) — what a whole-project review looks at
 - [Development](docs/DEVELOPMENT.md) — build instructions, project layout, dependencies
 - [Tests](docs/TESTS.md) — test suite layout and how to run it
 - [Performance](docs/PERFORMANCE.md) — measured performance findings
@@ -70,10 +74,22 @@ portable application: moving the program folder also moves its configuration.
   "keep_running_in_tray": true,
   "notify_on_failure": true,
   "execution_mode": "parallel",
-  "overlap_policy": "skip"
+  "overlap_policy": "skip",
+  "default_timeout_seconds": 0,
+  "theme": "gosentry",
+  "job_list_view": "detailed"
 }
 ```
 
+That is the file GoSentry writes on first run. `default_timeout_seconds` is the
+run timeout applied to jobs that do not set their own; `0` means no timeout, and
+it is written out even though it is zero, because a missing value and a
+deliberate "no timeout" have to stay distinguishable in a hand-edited file.
+`theme` is `system` or `gosentry` (the branded teal/amber look), and
+`job_list_view` is `detailed` or `compact` — both are remembered from the
+choices made in the app. Keys left at their off value (`start_on_login`,
+`paused`) are omitted until they are turned on.
+
 `jobs.json` stores job definitions:
 
 ```json
@@ -112,22 +128,55 @@ include the run timestamp and job name:
 
 ## Schedules
 
-Interval schedules using Go duration syntax:
+GoSentry accepts two schedule forms: fixed `@every` intervals and standard
+5-field cron expressions.
+
+### `@every` intervals
+
+Write `@every` followed by a [Go duration](https://pkg.go.dev/time#ParseDuration)
+— a positive number with a unit suffix. Units can be combined in one value:
 
 ```text
-@every 10s
+@every 10s          every 10 seconds
-@every 5m
+@every 5m           every 5 minutes
-@every 1h30m
+@every 1h           every hour
+@every 1h30m        every hour and a half (same as @every 90m)
+@every 2h45m10s     hours, minutes, and seconds combined
 ```
 
-Standard 5-field cron expressions:
+Supported units:
+
+| Unit | Meaning |
+|------|---------|
+| `ns` | nanoseconds |
+| `us`, `µs` | microseconds |
+| `ms` | milliseconds |
+| `s` | seconds |
+| `m` | minutes |
+| `h` | hours |
+
+`@every` does **not** support days, weeks, months, or years — those follow a
+calendar, not a fixed interval. For “every day at 02:00”, “on the 1st of each
+month”, or “once a year”, use a cron expression (below).
+
+The scheduler checks due jobs once per second, so values shorter than `1s` are
+accepted but will not fire faster than once a second.
+
+### Cron expressions
+
+Five fields: minute, hour, day-of-month, month, day-of-week.
 
 ```text
 */5 * * * *      every five minutes
 0 2 * * *        every day at 02:00
 30 9 * * 1-5     weekdays at 09:30
+0 0 1 * *        first day of every month at midnight
+0 0 1 1 *        every year on 1 January at midnight
 ```
 
+Named descriptors are also accepted: `@hourly`, `@daily`, `@weekly`,
+`@monthly`, `@yearly` (and `@annually`, `@midnight`).
+
 ## Using The App
 
 1. Start GoSentry.
@@ -135,7 +184,7 @@ Standard 5-field cron expressions:
 3. Set **Schedule**, **Command**, optional **Arguments**, **Folder**, and **Enabled**.
 4. Use **Run now** for a one-off manual run without waiting for the schedule.
 5. Use **Pause** on a single job to suspend it without deleting it.
-6. Use **Pause all** as a global stop switch for all scheduled runs.
+6. Use **Disable auto** as a global stop switch for all scheduled runs.
 7. Open **History** to see past runs, their trigger (`Manual`, `Schedule`, or `UI`), state, and log file.
 8. Open **Settings** to change the storage paths, log cleanup limits, queue behavior, and notifications.
 
@@ -154,13 +203,17 @@ loading a new list discards the run state of the old one.
 
 The **Start on login** checkbox shows an `OK` or `Problem` status. Saving with
 it enabled writes an autostart entry using the current executable path.
-Autostart entries include `--start-in-tray` so scheduled jobs run after sign-in
+When **Keep running in the system tray** is also enabled, the entry includes
-without opening the main window.
+`--start-in-tray` so scheduled jobs run after sign-in without opening the main
+window. With the tray option off, autostart still works but opens the main
+window normally. Changing the tray setting updates close behaviour and the
+autostart entry immediately; the tray icon itself updates only after you restart
+GoSentry (a Fyne limitation — see [docs/ROADMAP.md](docs/ROADMAP.md)).
 
 ## Queue Settings
 
-Two settings in the **Queue** group of the Settings tab control how simultaneous
+Three settings in the **Queue** group of the Settings tab control how
-and overlapping runs are handled.
+simultaneous, overlapping, and over-long runs are handled.
 
 **Execution mode** — applies when multiple jobs become due at the same tick:
 
@@ -169,19 +222,31 @@ and overlapping runs are handled.
 | `parallel` (default) | All due jobs start at the same time. |
 | `sequential` | Due jobs are started one after another, in the order they appear in the list. |
 
-**Overlap policy** — applies when a job's next scheduled run fires while its
+**Default overlap policy** — applies when a job's next scheduled run fires while
-previous run is still active:
+its previous run is still active:
 
 | Value | Behaviour |
 |-------|-----------|
 | `skip` (default) | The new run is discarded; the running instance continues. |
 | `queue` | The new run is held and starts immediately after the current run finishes. |
 
+**Default timeout (s)** — how long a run may take before it is killed. `0` (the
+default) means no limit.
+
+The last two are defaults: a job's own dialog has an **Overlap policy** and a
+**Timeout (s)** field that override them. A job that overrides nothing follows
+whatever the Settings tab says, so changing a default moves every such job with
+it. In `jobs.json` an override is an `overlap_policy` or `timeout_seconds` key
+on the job; absent means inherit. A `"timeout_seconds": 0` on a job is an
+override too — it means that job has no timeout even when the global default
+sets one.
+
 ## Notifications
 
 When **Notify on failure** is enabled in Settings, GoSentry sends a desktop
-notification whenever a scheduled or manual run exits with a non-zero exit code.
+notification whenever a scheduled or manual run ends in the `Failed` state —
-The notification shows the job name and the exit code.
+a non-zero exit code, a timeout, or a process that failed to start.
+The notification shows the job name and the failure detail.
 
 ## Autostart
 
@@ -197,7 +262,7 @@ Linux:
 [Desktop Entry]
 Type=Application
 Name=GoSentry
-Exec=/opt/gosentry/gosentry-0.9.0-linux-amd64 --start-in-tray
+Exec=/opt/gosentry/gosentry-<version>-linux-amd64 --start-in-tray
 Terminal=false
 ```
 
@@ -238,7 +303,7 @@ Known workaround:
 
 ```text
 dist\windows\
-  gosentry-0.9.0-windows-amd64.exe
+  gosentry-<version>-windows-amd64.exe
   opengl32.dll
   ...
 ```

assets/assets.go

@@ -17,7 +17,7 @@ import (
 // The hard constraint: Fyne's a.SetIcon and SetSystemTrayIcon each take ONE
 // image, which the OS then scales to every size it needs — titlebar (~16px),
 // taskbar/dock (~32-48px), and tray. Neither source survives that scaling:
-// downscaling the 1254px gosentry-icon-big.png to 16px is muddy, and upscaling
+// downscaling the 1254px gosentry-icon-large.png to 16px is muddy, and upscaling
 // the 16px icon to 32px is blurry. The fix is to feed each surface a
 // size-appropriate source — which differs per platform because each platform
 // exposes different icon channels.
@@ -44,6 +44,8 @@ import (
 //   - Tray: SetSystemTrayIcon(IconSmallICO()). The notification area is ICO-native
 //     and renders at 16-24px; a single-frame 16x16 .ico pins the hand-tuned glyph
 //     (a multi-size .ico made the tray pick and downscale a larger frame).
+//   - Desktop toasts: AppMetadata.Icon (set after NewWindow in run.go) feeds
+//     SendNotification without calling SetIcon, which would override GLFW_ICON.
 //
 // Linux / other non-Windows (no PE icon resource exists):
 //   - Window titlebar: a.SetIcon(IconSmall()) in run.go feeds the resource to

docs/ARCHITECTURE.md

@@ -17,7 +17,7 @@ src/
   storage/              JSON persistence (gosentry.json, jobs.json)
   platform/
     autostart/          Manager interface + Windows (shortcut) and Linux (XDG) impls
-    desktop/            display-scale helper (Linux only)
+    desktop/            desktop entry + icon under XDG data home (Linux only)
     filemanager/        open a folder in the desktop file manager
     winproc/            hidden-window startup flags (Windows only)
   ui/                   Fyne windows, tabs, and dialogs; reads service via Events
@@ -40,8 +40,8 @@ flowchart LR
     shell["Platform shell - cmd.exe /C or sh -c"]
 
     user -->|"edits jobs, settings, runs commands"| ui
-    ui -->|"CreateJob, UpdateJob, DeleteJob, RunNow, UpdateSettings, …"| svc
+    ui -->|"CreateJob, UpdateJob, DeleteJob, RunNow, UpdateSettings, AutostartStatus, …"| svc
-    svc -->|"SaveJobs, SaveConfig, LoadJobs, LoadConfig"| store
+    svc -->|"OpenStore, PrepareSaveJobs, PrepareSaveConfig, LoadJobsFile"| store
     store -->|"read/write"| config
     store -->|"read/write"| jobs
 
@@ -54,17 +54,78 @@ flowchart LR
     svc -->|"emit JobChanged / RunRecorded / JobsLoaded / ErrorOccurred"| ui
     ui -->|"display jobs, history, status"| user
 
-    ui -->|"SetAutostart, AutostartStatus"| autostart
     svc -->|"Set / Status via Manager"| autostart
 ```
 
+## Platform layer
+
+GoSentry ships one binary per target OS. Platform-specific code is not a
+workaround for missing cross-platform support — it **is** the cross-platform
+strategy: shared interfaces and call sites, with OS-specific implementations
+selected at **compile time** (`*_windows.go`, `//go:build linux`, and similar).
+Runtime `runtime.GOOS` checks appear only for small UI details (see below), not
+for autostart, file-manager integration, or command invocation.
+
+Callers (`app.Service`, `ui`, `runner`) depend on the shared API; they do not
+branch on the operating system.
+
+| Package / file | Windows | Linux | Other (`!windows && !linux`) |
+| --- | --- | --- | --- |
+| `platform/autostart` | Startup-folder `.lnk` shortcut | XDG `~/.config/autostart/gosentry.desktop` | Stub — `Set` returns an error when enabled |
+| `platform/desktop` | no-op | Installs `.desktop` + icon under XDG data home | no-op |
+| `platform/filemanager` | `explorer` | `xdg-open` | Unsupported — `Open` returns an error |
+| `platform/winproc` | `CREATE_NO_WINDOW` / `HideWindow` on child processes | no-op | no-op |
+| `runner/invocation_*` | `cmd.exe /S /C` with Windows-safe quoting | `sh -c` | `sh -c` (same as Linux) |
+
+**Why separate implementations are required**
+
+- **Autostart** — each OS defines its own login startup mechanism (shortcut,
+  XDG Autostart, LaunchAgents on macOS). There is no portable API in Go, Fyne, or
+  the standard library; a third-party helper would still wrap the same per-OS
+  code behind an interface.
+- **Opening a folder** — the desktop shell exposes no shared “reveal in file
+  manager” call; each platform invokes its registered handler (`explorer`,
+  `xdg-open`, `open` on macOS).
+- **Command shell** — users expect OS-native semantics (`cmd.exe` batch files,
+  `%VAR%`, and path rules on Windows; POSIX `sh` on Linux). A single shell for
+  all platforms would break commands on one side or the other.
+- **Hidden console window** — launching a child process from a GUI app can flash
+  a console on Windows only; Linux and macOS do not need equivalent flags.
+
+**Deliberate platform choices (not OS API limits)**
+
+- **Window and tray icons** — Fyne accepts icons on every platform, but Windows
+  renders the notification area and titlebar from multi-size `.ico` resources
+  (embedded via `packaging/windows/gosentry.rc`), while Linux StatusNotifier
+  trays scale better from a larger PNG. `ui/run.go` and `ui/tray.go` branch on
+  `runtime.GOOS` for asset selection only.
+- **Sample job commands** in `storage/store.go` — demo `echo` lines differ only
+  because shell quoting rules differ; real jobs are user-authored per platform.
+
+**Adding new platform code**
+
+- Put OS integration in `src/platform/<name>/` with a small shared API, or use
+  `*_GOOS.go` files in the owning package when the surface is a single function
+  (as in `runner/invocation_*`).
+- Do not scatter `runtime.GOOS` through `app.Service` or UI business logic.
+- Unsupported platforms get an explicit stub (return an error or no-op) rather
+  than silently doing nothing — see `autostart_other.go` and
+  `filemanager_other.go`.
+
+macOS autostart and file-manager handlers are not implemented yet; see
+[ROADMAP.md](ROADMAP.md) for blocked or deferred cross-platform work (for
+example window-maximized detection, which would need per-OS native calls).
+
 ## Main Flows
 
 1. Startup:
-   `cmd/gosentry` calls `ui.Run`, which creates an `app.Service`, opens the
+   `cmd/gosentry` calls `ui.Run`, which owns the process lifecycle: it calls
-   store, loads `gosentry.json` and `jobs.json`, subscribes the UI to service
+   `app.Open()` to open the store, load `gosentry.json` and `jobs.json`, and
-   events, builds the main window, and calls `Service.Start` to begin the
+   build the `app.Service`, then hands that Service to `newMainView`
-   scheduler loop. On first launch the service seeds per-job run-time statistics
+   (`mainwindow.go`), which subscribes the UI to service events and calls
+   `Service.Start` to begin the scheduler loop before assembling the tabs.
+   `Run` shows the window and, on quit, calls `Service.Stop`.
+   On every launch the service seeds per-job run-time statistics
    from existing log files so the details panel reflects accumulated history
    immediately (see §Statistics below).
 
@@ -78,10 +139,13 @@ flowchart LR
    `UpdateSettings` has one extra step: when the configured jobs file changes
    and a file already exists at the new path, that file is authoritative. The
    Service loads it, calls `adoptJobsLocked` to rebuild the jobs slice, runtime
-   map, schedule cache, next-run times, and log-seeded statistics around it, and
+   map, schedule cache, and next-run times around it, applies the statistics
-   emits `JobsLoaded` plus a broad `JobChanged`. A path with no file behind it
+   seeded from the new logs directory, and emits `JobsLoaded` plus a broad
-   receives the current jobs instead. Adoption drops all runtime state, so it is
+   `JobChanged`. A path with no file behind it receives the current jobs instead.
-   refused while a job is running.
+   Adoption drops all runtime state, so it is refused while a job is running.
+   Reading the new file and seeding its statistics both happen before `mu` is
+   taken (the no-I/O-under-`mu` rule in [STANDARDS.md](STANDARDS.md)), so the
+   running-job check is re-evaluated under the lock before anything is replaced.
 
 3. Scheduled run:
    `scheduler.Scheduler` fires a tick every second. On each tick it calls
@@ -105,8 +169,9 @@ flowchart LR
 
 6. History update:
    When a run goroutine completes, `Service` updates the job's runtime
-   (including the statistics aggregate), saves JSON, triggers log cleanup, and
+   (including the statistics aggregate) under `mu`, then — after releasing it —
-   emits `RunRecorded`. The UI observer appends the record to the History tab.
+   runs log cleanup and emits `RunRecorded`. Nothing is saved: a run changes only
+   `JobRuntime`, which is never persisted. The UI observer appends the record to the History tab.
    History rows exist only for the current process session; restarting the app
    clears the table (aggregate stats in the details panel are still seeded from
    log files).
@@ -114,8 +179,10 @@ flowchart LR
 7. Autostart:
    `UpdateSettings` in the Service calls `autostart.Manager.Set`. The Manager
    interface has two implementations: Windows writes a `.lnk` shortcut to the
-   user Startup folder; Linux writes an XDG Autostart `.desktop` file. Both
+   user Startup folder; Linux writes an XDG Autostart `.desktop` file. When
-   entries pass `--start-in-tray`.
+   `KeepRunningInTray` is enabled the entry passes `--start-in-tray`; when it is
+   off the entry launches the executable without that flag so the main window
+   opens after sign-in.
 
 8. Error surfacing:
    Background errors (failed JSON saves, cleanup errors) are emitted as
@@ -160,9 +227,9 @@ resolves the effective duration under `mu` and `startRunLocked` snapshots it int
 resolved duration as an argument, so the runner stays ignorant of the global
 config: a positive duration applies the timeout via `context.WithTimeout` and
 reports `Timed out after <timeout>` on expiry; a non-positive duration runs
-without a deadline, bounded only by `ctx` (app shutdown). `StartOnly` jobs run on
+without a deadline, bounded only by `ctx` (app shutdown). `StartOnly` jobs are
-the untimed context and so measure launch latency only, unaffected by the run
+built on `context.Background()` instead — neither the timeout nor app shutdown
-timeout.
+applies to them — and so measure launch latency only.
 
 ### Run-time statistics
 
@@ -173,8 +240,10 @@ timeout.
 | `RunCount` | total runs recorded |
 | `FailCount` | runs that exited non-zero |
 | `LastDurationMS` | wall-clock time of the most recent run (launch latency for `StartOnly`) |
-| `AvgDurationMS` | mean over all runs with a recorded duration |
+| `AvgDurationMS` | mean over all runs with a recorded duration, computed as `DurationSumMS / TimedRunCount` on every update rather than folded incrementally, so it never disagrees with the exact sum/count average `runner.aggregateLogStats` computes when seeding from logs |
 | `MaxDurationMS` | longest recorded run |
+| `TimedRunCount` | runs that carried a duration, and so contributed to the aggregates above; a legacy log without a `duration` header counts toward `RunCount` but not this |
+| `DurationSumMS` | running total of every timed run's duration; the source `AvgDurationMS` is divided from |
 
 `runner.RunJob` measures the wall-clock start→finish and sets `DurationMS` on
 the returned `RunRecord`. `runner/logfile.go` writes a `duration` line into the
@@ -205,19 +274,33 @@ the moment the window opens.
 
 ### `jobs_view.go` file structure
 
-`src/ui/jobs_view.go` is split across three files to stay within the ~250-line
+The size guideline for a file in this project is ~250 lines.
-size guideline:
+`src/ui/jobs_view.go` is split across six files along these seams:
 
 | File | Contents |
 |------|----------|
-| `jobs_view.go` | `newJobsView` — list, toolbar, button wiring, and layout |
+| `jobs_view.go` | `jobsView` struct — construction, `refresh`, `updateDetails`, the pause control, and layout assembly |
+| `jobs_view_state.go` | `jobsViewState` — the jobs/runtime snapshot, the folder filter, and the selection |
+| `jobs_view_list.go` | The sidebar list: row template, row rendering, row mode, and the compact/detailed toggle |
+| `jobs_view_toolbar.go` | The per-job button row — new, edit, run, pause, delete |
 | `jobs_view_details.go` | `detailsPanel` struct — widget creation, `update`, `clear`, `container` |
 | `jobs_view_helpers.go` | Pure helpers — `filteredJobIndexes`, `folderOptions`, `filterValue`, `indexOfID`, `lastJobLogs`, `nextJobListView`, `viewToggleText` |
 
+The widgets hold no job state of their own: they read `jobsViewState`, which is
+the only thing that reads the Service. The **selection is a job ID, not a row
+index.** Every path that changes the job list replaces the state's snapshot —
+create, delete, and edit from this view's own handlers, adopting a different
+jobs file from the Service, which the view only learns about through the refresh
+`JobsLoaded` triggers. An index that outlives its snapshot points at whichever
+job now sits there, so the details pane would describe one job while the list
+highlighted another. Rows are derived from the ID at render time
+(`selectedIndex`, `displayRow`), and `jobsView.refresh` ends by pointing the
+list's highlight at the selected job.
+
 ### `settings_view.go` file structure
 
 `src/ui/settings_view.go` is split across three files the same way, once its
-own size passed the ~250-line guideline:
+own size passed the guideline:
 
 | File | Contents |
 |------|----------|

docs/CHANGELOG.md

@@ -2,6 +2,340 @@
 
 All notable GoSentry changes are recorded in this file.
 
+## 1.0.3 - 2026-08-07
+
+**The findings of a whole-project review: durable JSON and log writes, bounded
+History and overlap queues, and a Jobs selection that follows the job.**
+
+**Application:**
+
+- Fixed a Windows quoting bug where a job whose **Command** field held a whole
+  command line (a `.bat`/`.cmd` wrapper followed by an argument that itself
+  ended in `.exe`) had its entire command line mistaken for the program path,
+  so the run failed with an unmappable shell error. The program path is now
+  found by the earliest file-extension match at a word boundary, not the first
+  extension in list order.
+- `gosentry.json` and `jobs.json` (and run log files) are now written
+  atomically — to a temp file, then renamed into place — so a crash or power
+  loss mid-write can no longer leave a truncated or empty file. `Service.Stop()`
+  is now called when the app quits, which also makes the run context
+  cancellation reach in-flight runs on shutdown.
+- Fixed the "queue" overlap policy's backlog (`PendingRuns`): it no longer
+  survives a global pause or a job being disabled, so resuming or re-enabling a
+  job can no longer replay a deferred run left over from before the pause/
+  disable. It is also capped at 10 queued occurrences, so a job whose runs take
+  longer than its own interval no longer accumulates an unbounded backlog that
+  then runs back-to-back indefinitely. The job details pane now shows the
+  queued-run count (", N queued") whenever it is non-zero.
+- **Start-only jobs are no longer tied to the application's lifetime.** A job
+  with *Start only* checked is launched on an uncancelable context, so quitting
+  GoSentry (or a run context being cancelled) can no longer try to kill a
+  process it deliberately stopped waiting for. This also removes a goroutine
+  that leaked on every start-only run and lived until the app exited.
+- The History tab no longer grows without bound: it keeps the newest 1000
+  records and drops the oldest, the way a job's own activity list is capped.
+  Column widths are also folded in one record at a time instead of being
+  re-measured across every row on every event, so recording a run no longer
+  gets slower the longer the app has been running. Measured on 5000 accumulated
+  records, one History redraw went from **15.8 ms to 0.9 ms**; at the new cap
+  the width rescan alone accounted for 1.5 ms of every redraw.
+- Two runs of the same job that start within the same second no longer share a
+  log file name. The later one gets a `-2`, `-3`, … suffix instead of silently
+  overwriting the earlier one's log — reachable with a fast manual re-run or a
+  sub-second queue drain.
+- A hand-edited `jobs.json` in which two entries carry the same `id` no longer
+  leaves them sharing one runtime, one parsed schedule, and one statistics
+  bucket; the duplicate is reassigned a free ID on load, as an absent ID always
+  was.
+- The **average run duration** shown in Statistics is now the exact sum divided
+  by the timed-run count rather than an incrementally folded integer mean. The
+  old form truncated on every run and the error compounded over a job's life,
+  so the live figure drifted away from the one rebuilt from log files after a
+  restart.
+- On Linux, a failure to install the `.desktop` file or icon is now reported in
+  History instead of being discarded, so the visible symptom — a generic dock
+  icon — has an explanation.
+
+**Jobs:**
+
+- **The Jobs tab keeps its selection on the job, not on the row.** Selecting a
+  different jobs file in Settings replaces the whole job list; the details pane
+  then described whichever job happened to land on the previously selected row —
+  or went blank if the new list was shorter — while the highlight in the list
+  stayed where it was. The selection now follows the job itself, and the
+  highlight and the details pane always describe the same one.
+- Switching the **Folder** filter now keeps the current selection when the new
+  filter still shows that job, instead of always jumping to the folder's first
+  job.
+
+**Settings:**
+
+- **Max log files and max log age days now accept 0, meaning "keep
+  everything."** Log cleanup already supported disabling either policy; the
+  Settings form and the Service validator rejected the value that would have
+  turned it on. A config that already set either to 0 is no longer silently
+  rewritten back to the 100/30 defaults on load.
+- Opening the tab and saving no longer block the window while the autostart
+  status is read — on Windows that check shells out to PowerShell, and it now
+  runs off the UI thread.
+- Two spellings of the same absolute **Jobs file** path (mixed separators, a
+  trailing separator) no longer read as a change of file, so saving no longer
+  triggers a spurious reload of the file already in use.
+
+**Documentation:**
+
+- Documentation audited against the code. `ARCHITECTURE.md` — the `jobs_view.go`
+  split is six files, not five (the state extraction was never counted), the
+  statistics table lists `TimedRunCount`, the store edge of the diagram names
+  the methods that exist, and startup says where `Service.Start` is actually
+  called. `TESTS.md` — three tests that had no entry are described
+  (`TestLoadOrCreateConfigPreservesZeroRetentionLimits`,
+  `TestWriteJSONReplacesFileAtomically`,
+  `TestQuoteLeadingWindowsProgramPathPicksEarliestBoundedExtension`), the
+  deliberately-uncovered list covers everything the profile reports at 0%, and
+  the coverage figure records how to read the total rather than the per-package
+  lines. `ROADMAP.md` — the over-the-guideline table was re-measured.
+- README's scheduler wording caught up with the 0.11.2 rename of "Pause all" to
+  **Disable auto**, and its notification description matches what the app sends.
+- `STANDARDS.md` records the rules the review settled: no file I/O under
+  `Service.mu`, the History and pending-run caps, the zero-retention meaning,
+  that a start-only process outlives GoSentry, the single-instance fallback's
+  consequence, and the unauthenticated instance-channel port.
+- `docs/REVIEW.md` (the whole-project review agenda) and the working plan it
+  produced are retired now that every item is either landed here or recorded in
+  `ROADMAP.md`, the way the test review plan was in 1.0.1. `STANDARDS.md` is the
+  surviving reference.
+- The screenshots moved to `docs/screenshots/`.
+
+**Internal:**
+
+- The failure-notification timing diagnostic added in 1.0.2 is now written to
+  `logs/notify-timing.tsv`. The `.tsv` extension keeps it out of `CleanupLogs`,
+  which manages only `.log` files, so it is neither deleted by age nor counted
+  against **Max log files**, and the append now runs off the UI thread.
+- `jobs.json` is no longer rewritten twice per run. Starting and finishing a run
+  touch only `JobRuntime`, which is never persisted, so both saves re-serialised
+  identical bytes; `SetGlobalPause` did the same alongside its real `SaveConfig`.
+  Removing them also removes the run-start rollback path and the save failure it
+  reported, so `RunDue` no longer has a start error to surface at all.
+- File I/O no longer happens while `Service.mu` is held — that is the lock the
+  UI thread takes on every job and runtime read, so a JSON write, the
+  post-run log cleanup, or the startup log scan used to make a UI refresh wait
+  on the disk. Saves are now prepared under the lock and written after it is
+  released, in preparation order, so `jobs.json` still ends up matching the
+  in-memory list. Seeding statistics from logs also opens each log file once
+  instead of twice.
+- The Jobs tab was split into `jobs_view.go` (construction, refresh, layout),
+  `jobs_view_state.go` (the job/runtime snapshot, folder filter, and selection),
+  `jobs_view_list.go`, and `jobs_view_toolbar.go`, joining the existing
+  `jobs_view_details.go` and `jobs_view_helpers.go`. What used to be one
+  330-line constructor whose dozen closures shared seven mutable locals is now
+  widgets reading one named state object — which is what made the selection fix
+  above a change in one place instead of five.
+- `Service.Store()` is replaced by typed `Service.Config()` and `Service.Paths()`
+  accessors that copy under the lock, so the UI no longer reaches into a shared
+  `*storage.Store`. The Jobs pause control is now driven by `refreshView`
+  reading `svc.Config().Paused` on every event, making it a real consumer of
+  `SchedulerStateChanged`, and the main window's event listener is a type switch.
+- Dead code removed: `collectActivity`, the `yaml` tags on `RunRecord`, the
+  `logArguments`/`LogArguments` alias, the redundant package-level
+  `SetAutostart`/`AutostartStatus` functions, and the Settings Save handler's
+  second copy of the Service's validation rules. The
+  `systemTrayRegistered`/`mainWindowHidden` globals are one `trayState` value
+  that `Run` owns and threads through.
+- `scripts/test.bat` no longer prints mojibake for its checkmarks under a
+  non-UTF-8 code page.
+
+## 1.0.2 - 2026-08-05
+
+**KeepRunningInTray is wired to runtime; Windows failure notifications can show
+the app icon (experimental).**
+
+**Application:**
+
+- **Keep running in the system tray** now controls behaviour: with the tray on
+  (default), closing the window hides it and autostart uses `--start-in-tray`;
+  with the tray off, closing quits the app and autostart opens the main window.
+- Saving a tray change updates close behaviour and the autostart entry
+  immediately. The notification-area icon follows the saved value after a
+  restart; Settings shows a hint when a restart is needed (Fyne cannot add or
+  remove the icon mid-session).
+- A stale autostart shortcut that still passes `--start-in-tray` no longer hides
+  the window when the tray setting is off — saved config wins over the CLI flag.
+- On Windows, failure toasts can show the app icon: after `NewWindow`,
+  `AppMetadata.Icon` is registered so Fyne picks up artwork without calling
+  `SetIcon`, which would override the PE multi-size window/taskbar icon.
+
+**Jobs:**
+
+- New disabled example *Failure notification test* (folder Examples). Run it
+  manually to trigger a failed run and verify Settings → Notifications without
+  waiting on the scheduler.
+
+**Documentation:**
+
+- **`docs/ARCHITECTURE.md`** — new §Platform layer: why autostart, file manager,
+  shell, and winproc are OS-specific; compile-time vs runtime branching; rules
+  for adding platform code.
+
+**Internal:**
+
+- App-side failure-notification timing is appended to `logs/notify-timing.log`
+  for diagnosing toast delay (OS latency excluded).
+  `scripts/measure-windows-toast.ps1` measures the PowerShell baseline on
+  Windows.
+
+## 1.0.1 - 2026-08-04
+
+**The branded theme is the default, Fyne's built-in theme is System, and the
+test suite is leaner.**
+
+**Settings:**
+
+- **The branded GoSentry theme is now the default.** Fresh installs, the
+  **Defaults** button, and configs that omit `theme` all open in the teal/amber
+  look; users who prefer Fyne's built-in theme can still pick **System** in
+  Settings.
+- The Fyne built-in theme option is labelled **System** (stored as `"system"`);
+  configs that still say `"default"` are read as System and rewritten on save.
+- The **About** repository link points at GitHub (`mixeme/gosentry`) instead of
+  the private Gitea mirror.
+
+**Jobs:**
+
+- The **Disable auto** row gained a top inset matching the gap below it, so it
+  no longer sits flush against the tab bar.
+
+**Documentation:**
+
+- The **README Schedules** section now documents `@every` in full: supported Go
+  duration units (`ns` through `h`), combined values such as `1h30m`, the link to
+  `time.ParseDuration`, the fact that days/months/years belong in cron rather
+  than `@every`, the one-second scheduler tick floor, cron examples for monthly
+  and yearly runs, and the `@hourly`/`@daily`/… descriptors.
+
+**Tests:**
+
+- Three tests with byte-identical coverage to an existing test and no unique
+  assertion are gone: `TestCleanupLogsKeepsFilesWithinAgeLimit`,
+  `TestRunDueEmptyOverlapInheritsGlobal` (its one unique setup guard moved into
+  `TestRunDueQueueRerunsAfterFinish`), and `TestSameWindowsPathHandlesSpaces`
+  (its spaces case folded into `TestSameWindowsPathIgnoresCaseAndQuotes`'s
+  fixture). So are two that carried no assertion at all:
+  `TestEmitWithNoObserversIsNoop` and `TestStoreReturnsWiredStore`.
+- The four `TestFilteredJobIndexes*` tests are one table-driven
+  `TestFilteredJobIndexes`, matching `TestFilterValue` above it.
+- `TestMainViewBuilds` is replaced by `TestMainViewRecordStartupAddsHistoryRow`,
+  which exercises the `recordStartup` closure for both wordings `run.go` selects
+  between and asserts the rows reach the History table through its cell callbacks,
+  including the `!windowShown` branch.
+- `storage.defaultJobs` — the one accidental 0%-coverage gap the review
+  found — is now exercised by
+  `TestLoadOrCreateJobsSeedsSampleJobsOnFirstRun`, which also corrects
+  `docs/TESTS.md`: `TestLoadOrCreateConfigCreatesDefaultsOnFirstRun` never
+  touched jobs, so the "and a sample job" half of its old description was
+  wrong.
+- `src/runner/seed_test.go`'s hand-rolled `itoa` — 18 lines of digit-by-digit
+  conversion in a file that already imports `strconv` — is replaced with
+  `strconv.FormatInt`.
+- **`docs/TESTS.md`** records the `-coverpkg` command and the 84.4% baseline
+  (per-package figures understate the suite), design principle 9 (redundancy is
+  judged by comparing coverage profiles, and identical coverage alone is not
+  grounds for deletion), a table of the look-alike tests that are kept with the
+  reason each survives, and the list of functions deliberately at 0%.
+- **`docs/STANDARDS.md`**'s "Intentional behavior" section points at both lists,
+  so the mechanism `docs/REVIEW.md` describes still reaches them. The spent test
+  review plan is retired.
+
+## 1.0.0 - 2026-07-27
+
+**The window opens at the size it asks for, and the Jobs divider can be
+dragged.**
+
+**Window:**
+
+- **The window opens at 1024×660 and can now be dragged narrower than it opens.**
+  Fyne treats the assembled content's minimum size as a hard floor over the
+  requested size, and two widgets in Settings pushed that minimum past 1024 px:
+  a fixed width applied to seven controls that the layout already stretched, and
+  the read-only config path, which grew the whole tab with the length of the
+  path it was showing — a 75-character path alone demanded 1501 px. The path now
+  clips when the window is genuinely narrow instead of widening the window, and
+  the content minimum is 972 px.
+
+**Jobs:**
+
+- **The divider between the job list and the details pane is draggable.**
+  Previously the list was pinned at its natural width and the details pane took
+  whatever was left, so a long command or a deep folder path could not be given
+  more room. Either pane can now be widened at the other's expense, and neither
+  can be dragged below its own content, so the details pane condenses rather
+  than clipping. The divider opens at the list's natural width; its position is
+  not saved, so a restart reopens at that default.
+
+**History:**
+
+- **Columns measure their own content.** Time, Trigger and State were fixed
+  pixel widths with as little as 1.6 px of headroom and truncated their own
+  values on a scaled UI or at a larger text size; all five now size themselves
+  from the text they have to show, under the current theme. Job and Detail stay
+  bounded so one long row cannot take over the table.
+
+**Settings:**
+
+- The **Save / Cancel / Restore defaults** row sits 4 px from the left edge, as
+  its layout always intended, rather than 8.
+- The caption column is as wide as the widest caption instead of a fixed width,
+  which gives each value column about 22 px more and keeps the captions readable
+  at a larger text size.
+- The **Application** and **About** blocks are about 2 px tighter: every stacked
+  row group in the app now shares one spacing derived from the theme rather than
+  three separately tuned numbers.
+- The **Theme** dropdown is no longer flush against the **Notifications**
+  checkbox. That shared row spacing pulls rows together by one text inset, which
+  the rows above have to give but a dropdown — which paints its box out to the
+  row's edge — does not, so the gap collapsed to about a pixel. The Theme row
+  now keeps the same gap the checkbox rows have.
+
+**Documentation:**
+
+- The **README** describes the application that exists. Its `gosentry.json`
+  sample was three keys short of what the app writes on first run, which made
+  the one file the user is invited to hand-edit the least accurate thing in the
+  document; it is now the real default, with each key explained — including why
+  a zero timeout is written out and an unset one is not. The feature list has
+  caught up with the run timeout, the theme, the compact job list, and the
+  per-job overlap and timeout overrides the job dialog has always offered.
+- **`docs/DEVELOPMENT.md`** is ordered as stack, external libraries, run from
+  source, build, release, CI, behind a two-level table of contents, instead of
+  opening with MSYS2 setup and burying "Run From Source" mid-document. The
+  library table gains versions and licenses, the `package-*` scripts are
+  documented for the first time and labelled by OS, and the Codeberg
+  `RELEASE_TOKEN` note now states the failure mode rather than leaving it to be
+  inferred from a red job: build and packaging succeed, the upload step fails on
+  authentication and takes the job with it, leaving a published release with no
+  assets. The Project Layout section is gone — it duplicated ARCHITECTURE's
+  package map and had drifted out of date.
+- **Cutting a GitHub release now documents the push mirror it has to survive.**
+  GitHub is a pruning push mirror of Gitea, so `gh release create` creating the
+  tag itself produces a tag Gitea does not know about, which the next
+  synchronisation deletes — orphaning the release and taking its uploaded
+  archives with it, without a single failed step to point at. The procedure is
+  push the tag to Gitea, wait for the mirror, verify the tag on GitHub, then
+  publish with `--verify-tag`.
+- **`docs/TESTS.md`** matches the suite it indexes again. It listed 130 tests
+  against 170 in the tree, omitted four test files entirely, and named two tests
+  that no longer exist. Every test function now appears exactly once, under the
+  file it actually lives in.
+- **`docs/ARCHITECTURE.md`** no longer draws the UI calling the autostart
+  manager directly — it does not, and `src/ui` holds no reference to that
+  package — and `platform/desktop` is described by what it does (the XDG desktop
+  entry and icon) rather than as a display-scale helper.
+- The **~250-line file guideline** is stated as the target it is, with the six
+  files currently over it recorded as a `docs/ROADMAP.md` item. They are to be
+  split in one pass during the next whole-project review, since six separate
+  passes would settle the same seam question six ways.
+
 ## 0.15.0 - 2026-07-26
 
 **Settings points at the jobs file itself, not the folder holding it.**

docs/DEVELOPMENT.md

@@ -1,18 +1,51 @@
 # GoSentry — Development
 
-Build instructions, project layout, and dependency information for contributors.
+Toolchain, dependency, build, and release information for contributors.
 
-## Requirements
+## Contents
 
-Common:
+1. [Technology Stack and Tools](#1-technology-stack-and-tools)
+   - [Toolchain — Windows](#toolchain--windows)
+   - [Toolchain — Linux](#toolchain--linux)
+   - [Repository scripts](#repository-scripts)
+2. [External Libraries](#2-external-libraries)
+3. [Run From Source](#3-run-from-source)
+4. [Building the Executable](#4-building-the-executable)
+   - [Windows](#windows)
+   - [Linux](#linux)
+   - [Linux using Docker](#linux-using-docker)
+5. [Building a Release](#5-building-a-release)
+   - [All targets from Linux](#all-targets-from-linux)
+   - [Packaging](#packaging)
+6. [CI](#6-ci)
+   - [Cutting a release](#cutting-a-release)
+   - [Releasing through the GitHub push mirror](#releasing-through-the-github-push-mirror)
+
+## 1. Technology Stack and Tools
+
+GoSentry is a single desktop process written in Go with a Fyne GUI. There is no
+server component and no external runtime: the release artifact is one native
+executable per platform.
+
+| Layer | Choice |
+| --- | --- |
+| Language | Go 1.22 or newer |
+| GUI toolkit | Fyne v2 (OpenGL desktop backend) |
+| Scheduling | `robfig/cron/v3` expression parser |
+| Persistence | Plain JSON files (`gosentry.json`, `jobs.json`) |
+| Build | `go build` driven by the scripts in `scripts/` |
+| Reproducible builds | Docker (`golang:1.22-bookworm` based [Dockerfile](../Dockerfile)) |
+| CI | GitHub Actions and Forgejo Actions (Codeberg) |
+
+CGO is mandatory. The Fyne desktop backend links against native OpenGL and
+window-system libraries, so a C compiler must be present for every build,
+including `go run` and `go test`.
+
+### Toolchain — Windows
 
 - [Go](https://go.dev/) 1.22 or newer.
-
+- MSYS2 with UCRT64 GCC in `C:\msys64\ucrt64\bin` (plus `windres` for the icon
-Windows:
+  resource).
-
-- MSYS2 with UCRT64 GCC in `C:\msys64\ucrt64\bin`.
-
-Install these dependencies on Windows:
 
 ```powershell
 # 1. Install Go 1.22 or newer from https://go.dev/dl/.
@@ -33,12 +66,12 @@ Test-Path C:\msys64\ucrt64\bin\gcc.exe
 Test-Path C:\msys64\ucrt64\bin\windres.exe
 ```
 
-Linux:
+### Toolchain — Linux
 
+- [Go](https://go.dev/) 1.22 or newer.
 - A C compiler.
-- [Fyne](https://fyne.io/) native build dependencies, including OpenGL/X11 development packages.
+- [Fyne](https://fyne.io/) native build dependencies, including OpenGL/X11
-
+  development packages.
-On Debian/Ubuntu, the Linux dependencies are typically:
 
 ```bash
 # Go builds the application, gcc is required by CGO/Fyne, and the OpenGL/X11
@@ -46,124 +79,41 @@ On Debian/Ubuntu, the Linux dependencies are typically:
 sudo apt install golang gcc libgl1-mesa-dev xorg-dev
 ```
 
-## Build
+### Repository scripts
 
-### Windows
+| Script | Purpose |
+| --- | --- |
+| `scripts/test.bat`, `scripts/test.sh` | `go vet ./...` then `go test -race ./...` |
+| `scripts/build-windows.bat` | Windows amd64 executable |
+| `scripts/build-linux.sh` | Linux amd64 executable |
+| `scripts/build-linux-docker.sh` | Linux amd64 executable, built in Docker |
+| `scripts/build-release-linux.sh` | Multi-target release artifacts from one Linux/Docker workflow |
+| `scripts/package-windows.bat`, `scripts/package-linux.sh` | Wrap a built binary into a distributable archive |
+| `scripts/ci-build-release.sh` | Entry point used by both CI workflows |
 
-```powershell
+Build outputs are written to `dist/`. The package layout is documented in
-# Builds dist\windows\gosentry-<version>-windows-amd64.exe. The script changes
+[ARCHITECTURE.md](ARCHITECTURE.md).
-# to the repository root first, so double-clicking it from Explorer works. It
-# also adds MSYS2 UCRT64 to PATH for this process only, embeds the Windows icon
-# when windres is available, and uses the Windows GUI subsystem so no console
-# window opens at startup.
-.\scripts\build-windows.bat
-```
 
-The Windows build is created as a GUI application, so it does not open a terminal window.
+## 2. External Libraries
 
-The binary is written to:
+GoSentry keeps the direct dependency list intentionally small. GoSentry itself
+is distributed under the [MIT License](../LICENSE).
 
-```text
+| Dependency | Version | Repository | License |
-dist\windows\gosentry-0.9.0-windows-amd64.exe
+| --- | --- | --- | --- |
-```
+| Go toolchain | 1.22+ | https://go.googlesource.com/go | BSD 3-Clause |
+| `fyne.io/fyne/v2` | v2.7.4 | https://github.com/fyne-io/fyne | BSD 3-Clause |
+| `github.com/robfig/cron/v3` | v3.0.1 | https://github.com/robfig/cron | MIT |
 
-### Linux
+The remaining entries in `go.mod` are indirect dependencies pulled in by Fyne
+and the Go module resolver. To list every direct and indirect module used by the
+current checkout:
 
 ```bash
-# Make the helper executable once, then build a linux/amd64 Fyne binary.
+go list -m all
-chmod +x ./scripts/build-linux.sh
-./scripts/build-linux.sh
 ```
 
-The binary is written to:
+## 3. Run From Source
-
-```text
-dist/linux/gosentry-0.9.0-linux-amd64
-```
-
-### Linux using Docker
-
-```bash
-# Builds the Linux binary inside Docker using the versioned image tag
-# gitea.mixdep.ru/mix/gosentry-builder:<version>. Useful from hosts or CI jobs
-# where the native Linux/Fyne packages are not installed locally.
-chmod +x ./scripts/build-linux-docker.sh
-./scripts/build-linux-docker.sh
-```
-
-The binary is copied to:
-
-```text
-dist/linux/gosentry-0.9.0-linux-amd64
-```
-
-### Release build from Linux
-
-```bash
-# Interactively choose Linux amd64, Linux arm64, Windows amd64, or all artifacts
-# from one Linux/Docker workflow. The Dockerfile contains the builder
-# environment; the build commands live in this script. Docker runs the build
-# with the current user's UID/GID so dist/ files are not owned by root.
-chmod +x ./scripts/build-release-linux.sh
-./scripts/build-release-linux.sh
-```
-
-Non-interactive release builds can pass target names:
-
-```bash
-# Build only Linux arm64 and Windows amd64 artifacts.
-./scripts/build-release-linux.sh linux-arm64 windows-amd64
-```
-
-The binaries are copied to:
-
-```text
-dist/linux/gosentry-0.9.0-linux-amd64
-dist/linux/gosentry-0.9.0-linux-arm64
-dist/windows/gosentry-0.9.0-windows-amd64.exe
-```
-
-### Automated release builds (CI)
-
-Tagged releases are built automatically on both GitHub and Codeberg:
-
-- `.github/workflows/release.yml` — GitHub Actions.
-- `.forgejo/workflows/release.yml` — Forgejo Actions (Codeberg).
-
-Both run inside `golang:1.22-bookworm` (the same base image as the
-[Dockerfile](../Dockerfile)), install the cross toolchain, and call
-`scripts/ci-build-release.sh`, which builds and packages all three artifacts:
-
-```text
-dist/linux/gosentry-<version>-linux-amd64.tar.gz
-dist/linux/gosentry-<version>-linux-arm64.tar.gz
-dist/windows/gosentry-<version>-windows-amd64.zip
-```
-
-The Windows binary is cross-compiled with MinGW-w64 from the Linux job, so no
-Windows runner is required. Each archive contains the executable plus `README.md`
-and `CHANGELOG.md`, matching the local `package-*` scripts.
-
-To cut a release, bump `src/app/version.go`, then create and publish a release
-with a matching `v` tag on the forge (GitHub Releases / Codeberg releases). You
-can do that from the web UI or the CLI, e.g.:
-
-```bash
-git tag v0.11.5
-git push origin v0.11.5   # and to the Codeberg remote
-gh release create v0.11.5 --generate-notes   # GitHub; publishes the release
-```
-
-Publishing the release triggers the workflow: it strips the leading `v` from
-the tag and injects it as the version (so the tag must match `version.go`),
-builds the archives, and attaches them to that release. `workflow_dispatch`
-also allows a manual, upload-free build to smoke-test the pipeline.
-
-Codeberg publishing needs a repository secret named `RELEASE_TOKEN` (a Codeberg
-access token with the `write:repository` scope) under
-**Settings → Actions → Secrets**. GitHub uses the built-in `GITHUB_TOKEN`.
-
-## Run From Source
 
 Windows:
 
@@ -186,41 +136,217 @@ Linux:
 CGO_ENABLED=1 go run ./cmd/gosentry
 ```
 
-## Project Layout
+The same environment is required for the test suite — see
+[TESTS.md](TESTS.md):
 
-- `cmd/gosentry` — entry point; starts the desktop app.
+```powershell
-- `src/domain` — pure value types: `Job`, `Config`, `RunRecord`, `Schedule`, `JobRuntime`.
+scripts\test.bat
-- `src/app` — `Service`: sole owner of job and runtime state; emits typed events to the UI.
+```
-- `src/scheduler` — pure timing loop; calls `Service.RunDue` on every tick.
-- `src/runner` — shell command execution, log file writing, and log cleanup.
-- `src/storage` — JSON persistence (`gosentry.json`, `jobs.json`).
-- `src/platform/autostart` — `Manager` interface with Windows (shortcut) and Linux (XDG) implementations.
-- `src/platform/desktop` — display-scale helper (Linux only).
-- `src/platform/winproc` — hidden-window startup flags (Windows only).
-- `src/ui` — Fyne windows, tabs, and dialogs; reads service state through events.
-- `assets` — app icons embedded into the application binary.
-- `scripts` — build helpers.
-- `docs` — architecture notes, changelog, and roadmap.
 
-Build outputs are written to `dist/`.
+## 4. Building the Executable
 
-## Dependencies
+### Windows
 
-GoSentry keeps the direct dependency list intentionally small:
+```powershell
+# Builds dist\windows\gosentry-<version>-windows-amd64.exe. The script changes
+# to the repository root first, so double-clicking it from Explorer works. It
+# also adds MSYS2 UCRT64 to PATH for this process only, embeds the Windows icon
+# when windres is available, and uses the Windows GUI subsystem so no console
+# window opens at startup.
+.\scripts\build-windows.bat
+```
 
-- [`fyne.io/fyne/v2`](https://fyne.io/) for the native GUI.
+The Windows build is created as a GUI application, so it does not open a
-- `github.com/robfig/cron/v3` for cron schedule parsing.
+terminal window. The binary is written to:
 
-The remaining entries in `go.mod` are indirect dependencies pulled by Fyne and the Go module resolver.
+```text
+dist\windows\gosentry-<version>-windows-amd64.exe
+```
 
-Source repositories for mirroring:
+### Linux
-
-- Go toolchain: https://go.googlesource.com/go
-- Fyne: https://github.com/fyne-io/fyne
-- robfig/cron: https://github.com/robfig/cron
-
-To list every direct and indirect Go module used by the current checkout:
 
 ```bash
-go list -m all
+# Make the helper executable once, then build a linux/amd64 Fyne binary.
+chmod +x ./scripts/build-linux.sh
+./scripts/build-linux.sh
 ```
+
+The binary is written to:
+
+```text
+dist/linux/gosentry-<version>-linux-amd64
+```
+
+### Linux using Docker
+
+```bash
+# Builds the Linux binary inside Docker using the versioned image tag
+# gitea.mixdep.ru/mix/gosentry-builder:<version>. Useful from hosts or CI jobs
+# where the native Linux/Fyne packages are not installed locally.
+chmod +x ./scripts/build-linux-docker.sh
+./scripts/build-linux-docker.sh
+```
+
+The binary is copied to:
+
+```text
+dist/linux/gosentry-<version>-linux-amd64
+```
+
+## 5. Building a Release
+
+### All targets from Linux
+
+```bash
+# Interactively choose Linux amd64, Linux arm64, Windows amd64, or all artifacts
+# from one Linux/Docker workflow. The Dockerfile contains the builder
+# environment; the build commands live in this script. Docker runs the build
+# with the current user's UID/GID so dist/ files are not owned by root.
+chmod +x ./scripts/build-release-linux.sh
+./scripts/build-release-linux.sh
+```
+
+Non-interactive release builds can pass target names:
+
+```bash
+# Build only Linux arm64 and Windows amd64 artifacts.
+./scripts/build-release-linux.sh linux-arm64 windows-amd64
+```
+
+The binaries are copied to:
+
+```text
+dist/linux/gosentry-<version>-linux-amd64
+dist/linux/gosentry-<version>-linux-arm64
+dist/windows/gosentry-<version>-windows-amd64.exe
+```
+
+### Packaging
+
+The `package-*` scripts build the binary for their platform and wrap it in a
+distributable archive together with `README.md` and `CHANGELOG.md`:
+
+Windows:
+
+```powershell
+scripts\package-windows.bat
+```
+
+```text
+dist\windows\gosentry-<version>-windows-amd64.zip
+```
+
+Linux:
+
+```bash
+./scripts/package-linux.sh
+```
+
+```text
+dist/linux/gosentry-<version>-linux-amd64.tar.gz
+dist/linux/gosentry-<version>-linux-arm64.tar.gz
+```
+
+The arm64 archive is produced only when the `aarch64-linux-gnu-gcc` cross
+compiler is available; otherwise that target is skipped with a message.
+
+The version stamped into the file names and into the binary comes from
+`src/app/version.go`.
+
+## 6. CI
+
+Tagged releases are built automatically on both GitHub and Codeberg:
+
+- `.github/workflows/release.yml` — GitHub Actions.
+- `.forgejo/workflows/release.yml` — Forgejo Actions (Codeberg).
+
+Both run inside `golang:1.22-bookworm` (the same base image as the
+[Dockerfile](../Dockerfile)), install the cross toolchain, and call
+`scripts/ci-build-release.sh`, which builds and packages all three artifacts:
+
+```text
+dist/linux/gosentry-<version>-linux-amd64.tar.gz
+dist/linux/gosentry-<version>-linux-arm64.tar.gz
+dist/windows/gosentry-<version>-windows-amd64.zip
+```
+
+The Windows binary is cross-compiled with MinGW-w64 from the Linux job, so no
+Windows runner is required. Each archive contains the executable plus `README.md`
+and `CHANGELOG.md`, matching the local `package-*` scripts.
+
+### Cutting a release
+
+Before tagging:
+
+1. Bump `src/app/version.go`. The tag must match it exactly.
+2. Add the version's [CHANGELOG.md](CHANGELOG.md) section.
+3. Retake the README screenshots (`docs/screenshots/screenshot_jobs.PNG`,
+   `docs/screenshots/screenshot_settings.PNG`,
+   `docs/screenshots/screenshot_history.PNG`) if the GUI changed its appearance. This is
+   easy to forget because nothing fails without it: `README.md` is packaged
+   inside every release archive and is what the forge shows on the project page,
+   so a stale shot advertises an application that no longer exists. Take them
+   from a real build, not from a development run with test data.
+4. Run `scripts/test.bat` (or `go vet ./... && go test -race ./...`) and push
+   `main`, so the tag lands on a commit the forge actually has.
+
+Then create and publish a release with a matching `v` tag on the forge (GitHub
+Releases / Codeberg releases). `origin` is the Gitea repository, and GitHub is a
+push mirror of it, so the tag is pushed to Gitea and reaches GitHub through the
+mirror — never created on GitHub directly (see
+[Releasing through the GitHub push mirror](#releasing-through-the-github-push-mirror)):
+
+```bash
+git tag v0.11.5
+git push origin v0.11.5   # Gitea; and to the Codeberg remote
+
+# wait for the mirror, then confirm GitHub actually has the tag
+git ls-remote --tags https://github.com/mixeme/gosentry.git v0.11.5
+
+gh release create v0.11.5 --verify-tag --generate-notes   # GitHub; publishes the release
+```
+
+Publishing the release triggers the workflow: it strips the leading `v` from
+the tag and injects it as the version (so the tag must match `version.go`),
+builds the archives, and attaches them to that release. `workflow_dispatch`
+also allows a manual, upload-free build to smoke-test the pipeline.
+
+Codeberg publishing needs a repository secret named `RELEASE_TOKEN` (a Codeberg
+access token with the `write:repository` scope) under
+**Settings → Actions → Secrets**. Without it the build and packaging steps still
+succeed, but the upload step fails on authentication and takes the job down with
+it, leaving a published release with no attached assets. GitHub needs no such
+setup: `softprops/action-gh-release` falls back to the built-in `GITHUB_TOKEN`,
+and the workflow already grants it `contents: write`.
+
+### Releasing through the GitHub push mirror
+
+The GitHub repository `mixeme/gosentry` is not a separate remote you push to; it
+is a push mirror driven by Gitea. Gitea mirrors with pruning, so every ref that
+exists on GitHub but not in Gitea is deleted on the next synchronisation.
+
+This is what breaks the obvious way of cutting a GitHub release. `gh release
+create v1.0.0` creates the tag on GitHub when it is missing — a tag Gitea has
+never heard of. The next mirror run prunes it, GitHub orphans the release whose
+tag disappeared and turns it into a draft, and the release looks deleted on the
+Releases page. The archives go with it. Nothing reports an error: the workflow
+ran, the assets uploaded, and the release evaporated afterwards.
+
+The order that works is therefore:
+
+1. `git push origin <tag>` — the tag enters Gitea, which owns it.
+2. Wait for the mirror, or force it with **Settings → Repository → Mirror
+   Settings → Synchronize Now** in Gitea.
+3. `git ls-remote --tags https://github.com/mixeme/gosentry.git <tag>` — confirm
+   GitHub has it.
+4. `gh release create <tag> --verify-tag …` — `--verify-tag` is the guard, not a
+   nicety: without it `gh` silently creates the doomed tag when the mirror has
+   not caught up yet.
+
+Release notes and assets are GitHub-side metadata; a mirror push cannot touch
+them, so once the release sits on a mirrored tag, later synchronisations leave
+it alone. Two consequences follow. Moving a published tag in Gitea force-pushes
+it on GitHub and leaves the release pointing at a different commit, and deleting
+a published tag in Gitea destroys the GitHub release along with its uploaded
+archives — neither is recoverable from the mirror side. Codeberg is unaffected:
+its releases live in the same forge as its tags.

docs/GUI-LAYOUT-REVIEW.md

@@ -1,386 +0,0 @@
-# GUI layout review — custom layouts and composition
-
-Findings for the *"GUI review — custom layouts and composition"* item in
-[ROADMAP.md](ROADMAP.md). Scope is composition only: the four custom
-`fyne.Layout` implementations in [`src/ui/layout.go`](../src/ui/layout.go), the
-tuned constants the views drive them with, and how the assembled views behave
-when the window or the theme scale changes. It is not a general code review.
-
-Reviewed at Fyne v2.7.4. Every number below was measured with a throwaway
-headless probe (`test.NewApp()` + `theme.DefaultTheme()`), not estimated: at the
-default text size (14; `theme.Padding()` = 4, `theme.InnerPadding()` = 8) and,
-where scale matters, at text size 20. The probes were deleted after the
-measurements were taken; the numbers are reproducible from the recipes quoted in
-each finding.
-
-Nothing in the code was changed by this pass. Each finding carries a
-disposition: **single fix** (goes straight in) or **roadmap** (larger than one
-fix, comes back to ROADMAP).
-
-## Summary
-
-The four custom layouts are mostly justified — but one of them
-(`compactVBoxLayout`) is a re-implementation of a stock Fyne layout that has
-existed since 2.5, and another (`minWidthLayout`) is applied at nine sites of
-which eight enforce a width that turns out to have no visual effect at all.
-
-The bigger result is about the constants rather than the layouts. Three raw-pixel
-width constants (`settingsLabelWidth`, `settingsControlWidth`,
-`minJobsSidebarWidth`) are *floors*, and content already reaches or exceeds all
-three at the default text size or one step above it. They no longer shape
-anything on screen. What they still do is set the minimum size of the window —
-and that minimum (**1165×543** for a typical install) is **wider than the
-1024×660 window the app asks for at startup**. GoSentry cannot open at its own
-default size, and the user cannot drag it narrower.
-
-## Per-layout verdict
-
-The roadmap asks three questions of each layout: is it still needed, is it the
-smallest thing that works, does it hold up at other window sizes and theme
-scales.
-
-| Layout | Call sites | Still needed | Smallest thing that works | Holds up when scaled |
-|---|---|---|---|---|
-| `minWidthLayout` | 9 | Partly — 1 site is load-bearing, 8 are not | No — see F2, F7 | Yes: it takes the max with the child's own minimum, so it can never clip |
-| `compactVBoxLayout` | 3 | **No** — stock `layout.NewCustomPaddedVBoxLayout` is identical | No — delete the type (F4) | Yes, but the *spacing values* do not (F5) |
-| `fixedHeightLayout` | 1 | **Yes** — keep | Yes (see below) | Yes: its one caller derives the height from the theme |
-| `captionValueLayout` | 1 (via `detailRow`, 11 rows) | Yes | Yes | Yes for the caption; the value column has no floor of its own (F9) |
-
-On `fixedHeightLayout`, which the roadmap singles out as a one-call-site type:
-there is no stock layout that forces an exact height. The closest stock
-construction is `container.NewStack(list, rect)` with a transparent
-`canvas.Rectangle` carrying `SetMinSize(fyne.NewSize(0, activityRowsHeight(3)))`,
-which is equivalent *here* only because the parent is a `Border` bottom slot and
-a bottom slot grants exactly `MinSize().Height`. That is a 29-line type traded
-for a one-line invisible-rectangle trick that depends on the parent staying a
-`Border`. **Keep the type** — and note the codebase already uses the
-invisible-rectangle trick twice in `settings_view.go` (F8), so the two idioms
-currently coexist for no reason. Standardise on the named layout.
-
-## Per-constant verdict
-
-| Constant | Value | What content actually needs | Binds? |
-|---|---|---|---|
-| `settingsLabelWidth` | 180 | 169.2 — widest caption, *"Default overlap policy"* | Only below text size 15 (180.1 at 15). Visible effect: yes, it sets the caption column |
-| `settingsControlWidth` | 330 | 306.7 — widest control, the notifications checkbox | Only below text size 16. Visible effect: **none** (F2) |
-| `minJobsSidebarWidth` | 400 | 448.0 — the 5-button toolbar row | **Never** (F7) |
-| `detailRowSpacing` | −8 | = −`theme.InnerPadding()` at the default theme | Yes — but the relation to the theme is only implicit (F5) |
-| `jobRowSpacing` | −8 | as above | as above |
-| `settingsRowSpacing` | −6 | no principled relation to any theme metric | as above |
-| `logColumnMinWidth` / `MaxWidth` / `Padding` | 240 / 520 / 24 | a real log name measures 268.9 at text size 14, 373.7 at 20 | Yes; the min/max are sane, the 24 is a guess at `2×InnerPadding` = 16 (F14) |
-| History column widths | 150/90/170/90/260 | 148.4/75.7/114.9/86.7/144.2 at text size 14 | Yes — Time has 1.6 px of headroom, State 3.3, which a scaled UI eats (F6) |
-| `activityRowsHeight()` | derived | — | **Correct by construction — this is the model** |
-| `detailCaptionWidth()` | derived | — | **Correct by construction — this is the model** |
-
-## Findings
-
-### F1 — The window cannot open at the size it asks for *(high, roadmap)*
-
-`run.go:54-56` asks for 1024×660 (or the persisted preference). The assembled
-content's minimum is **1165.5×542.9** for an install whose config path is 53
-characters (`C:\Users\alice\AppData\Roaming\GoSentry\gosentry.json`). Fyne
-enforces that minimum in two places: `window.Resize` takes
-`size.Max(content.MinSize())`, and `fitContent` calls
-`view.SetSizeLimits(minWidth, minHeight, …)`. So the window silently opens ~140 px
-wider than requested and cannot be dragged narrower.
-
-The height is fine — 543 leaves room on a 720p screen, which is what the
-condensed details pane was for. The problem is entirely horizontal, and it comes
-from the Settings tab: `AppTabs` reports the maximum of its children, and the
-three tabs measure 920.0 (Jobs), 40.0 (History), **1165.5 (Settings)**.
-
-The Settings minimum is also not a constant — it tracks the length of the config
-file path: 1040 for a 10-character path, 1165 for 53, **1501 for 75**. A user
-with a long Windows account name gets a window that will not fit on a 1366×768
-laptop screen.
-
-`container.NewVScroll` (`settings_view.go:304`) caps the tab's minimum *height*
-at 32, and the comment there explains exactly why. The same reasoning was never
-applied to the width. Two independent causes, F2 and F3, both need fixing to
-bring the floor under 1024; measured together they take it to **993.3**, at which
-point the binding row is the *Notifications* checkbox (490.7) and the tab no
-longer widens with the config path at all.
-
-This also interacts with the frozen *Window size persistence* roadmap item: a
-restored width below the content minimum would be silently widened anyway.
-
-### F2 — `settingsControlWidth` wrappers change nothing but the minimum *(medium, single fix)*
-
-Seven rows wrap their control in `container.New(minWidthLayout{width: 330}, …)`
-(`settings_view.go:248, 252, 253, 254, 262, 263, 264`). Measured with a select at
-three row widths, wrapped versus bare:
-
-| Row width | Wrapped select size | Bare select size |
-|---|---|---|
-| 700 | 516 | 516 |
-| 514 | 330 | 330 |
-| 420 | 236 | 236 |
-
-Identical, at every width, because `settingsRow` puts the control in a `Border`
-centre slot, which already stretches it to whatever the column gives it — and
-`minWidthLayout.Layout` in turn resizes its child to the container size. The
-wrapper's *only* observable effect is on `MinSize`: the row reports 514 instead
-of 311.9, ×2 columns, which is the 1040 floor in F1.
-
-**Fix:** delete the constant and the seven wrappers. No visual change at any
-window size the user can reach; seven containers fewer; the Settings floor drops
-by 46.7 px (the notifications checkbox then binds at 490.7). `minWidthLayout`
-itself stays — its remaining caller, the caption box in `settingsRow`, sits in a
-`Border` *left* slot, which grants exactly `MinSize().Width`, so there the
-constant is what renders.
-
-### F3 — One label in Settings is not truncated, and it sets the window width *(medium, single fix)*
-
-`settingsRow("Config JSON", widget.NewLabel(store.Paths.ConfigPath))`
-(`settings_view.go:273`) is the only value label in the tab with default
-wrapping, so its minimum width is the full pixel width of the path: the label
-measures 392.8 for a 53-character path (12.7 truncated), which makes the row 576.8
-against 196.7. Fyne's grid gives every column the widest cell's width, so that row
-alone costs **2×** its width in the tab minimum.
-
-The rule this row is missing is already established one screen away —
-`autostartStatus.Wrapping = fyne.TextTruncate` at `settings_view.go:128`, with the
-comment *"Truncating keeps a long status message from forcing the column wider."*
-The read-only path row simply never got it.
-
-**Fix:** truncate it like its neighbour. The full path stays readable whenever the
-window is wide enough, which it will be by default.
-
-### F4 — `compactVBoxLayout` re-implements a stock Fyne layout *(medium, single fix)*
-
-`layout.NewCustomPaddedVBoxLayout(padding float32)` has existed since Fyne 2.5
-and does exactly what `compactVBoxLayout` does, negative padding included.
-Compared directly at spacings −8, −6, 0 and 4, the two produce **identical**
-`MinSize` values and identical position and size for every child; they also agree
-on a hidden middle child (62.16), an empty object list (0×0) and a single child
-(43.25×35.08). The stock layout is a strict superset — it additionally
-distributes `layout.Spacer` objects, which the local copy ignores.
-
-**Fix:** delete the type (≈40 lines) and replace its three call sites with
-`container.New(layout.NewCustomPaddedVBoxLayout(spacing), …)`. Keep the *comment*
-explaining why the spacing is negative — that rationale is not in the stock docs.
-
-### F5 — The negative spacings are magic numbers with a theme expression available *(medium, single fix)*
-
-`detailRowSpacing = -8` and `jobRowSpacing = -8` are exactly
-`-theme.InnerPadding()` at the default theme, and the match is not accidental:
-two stacked labels contribute 8 px of inner padding each at their shared edge, so
-−8 removes one label's worth and leaves the other. Written as −8 the reasoning is
-invisible and the value stops tracking a theme that changes
-`SizeNameInnerPadding` — the exact class of breakage the roadmap flags.
-
-Text does not currently overlap at either measured scale (line height 19.1 within
-a 35.1 label at text size 14; 27.2 within 43.2 at text size 20), so this is a
-robustness fix, not a rendering bug.
-
-`settingsRowSpacing = -6` has no such derivation — it is 0.75 of the inner
-padding, chosen by eye.
-
-**Fix:** replace the three constants with one function, in the style
-`activityRowsHeight` and `detailCaptionWidth` already set:
-
-```go
-// rowOverlap pulls stacked label rows together by exactly one label's vertical
-// inner padding, which is the whitespace two adjacent labels double up on.
-func rowOverlap() float32 { return -theme.InnerPadding() }
-```
-
-A function, not a `const`, because `theme.InnerPadding()` must be read after the
-app exists. Settings then either adopts the same value (−8, a 2 px change) or
-keeps a documented fraction of it.
-
-### F6 — History column widths are raw pixels and truncate on a scaled UI *(medium, single fix)*
-
-`table.SetColumnWidth(0…4, 150/90/170/90/260)` leaves as little as 1.6 px of
-headroom at the default text size (Time, holding `2026-06-01 10:00:00`) and 3.3
-(State, holding `Succeeded`). At text size 20 three of the five columns truncate
-their own content:
-
-| Column | Width | Needs at text size 20 |
-|---|---|---|
-| Time | 150 | 204.9 (`2026-06-01 10:00:00`) |
-| Trigger | 90 | 101.3 (`Schedule`) |
-| State | 90 | 117.0 (`Succeeded`) |
-
-The Log column is already immune — `logColumnWidth` measures its content with
-`fyne.MeasureText(…, theme.TextSize(), …)`. The remaining five columns should be
-sized the same way, from a representative sample string per column (a timestamp,
-the longest trigger and state names) rather than from a pixel count.
-
-### F7 — `minJobsSidebarWidth` never binds *(low, single fix)*
-
-The Jobs sidebar's natural minimum is **448.0**, set by the toolbar row of five
-buttons; the constant is 400. It has never had an effect at the default theme,
-and scaling only widens the gap. The `Border` left slot gives the sidebar exactly
-its `MinSize` width, so the wrapper contributes nothing.
-
-**Fix:** delete the constant and the wrapper. One caveat: `jobsSidebar` in
-[`jobs_view_test.go`](../src/ui/jobs_view_test.go:141) locates the sidebar by
-looking for a container whose layout is `minWidthLayout`, so it needs a different
-anchor in the same change. See also F15 — an `HSplit` would remove the question.
-
-### F8 — The settings button row is indented twice as far as its comment claims *(low, single fix)*
-
-`settings_view.go:299-311` builds two transparent `canvas.Rectangle` spacers, the
-second to *"[indent] the buttons from the left edge the same amount"* as
-`theme.Padding()`. Measured, the first button lands at **x = 8**, not 4: an
-`HBox` inserts its own `theme.Padding()` gap *after* the spacer, so the inset is
-doubled.
-
-**Fix:** drop both rectangles for the stock
-`layout.NewCustomPaddedLayout(2*theme.Padding(), 0, theme.Padding(), 0)` wrapped
-around a plain `HBox`. That reproduces the current 12 px top gap exactly (VBox
-padding + 2× padding) while giving the intended 4 px left inset — and removes the
-codebase's second spacing idiom (see the `fixedHeightLayout` note above). If the
-8 px inset is what was actually wanted, the constant should say so instead.
-
-### F9 — The details value column has no floor of its own *(low, roadmap)*
-
-`captionValueLayout` gives the caption a fixed width and hands the remainder to
-the value, with no lower bound: `valueWidth = size.Width - captionWidth -
-padding`, clamped at 0. Measured across the pane's reachable widths:
-
-| Window width | Caption | Value |
-|---|---|---|
-| 1583 | 116.2 | 439.3 |
-| 1024 | 116.2 | 159.8 |
-| 920 (the panel's own minimum) | 116.2 | 107.8 |
-
-So the value never actually vanishes — but only because
-`commandOutputScroll.SetMinSize(fyne.NewSize(460, 70))`
-([`jobs_view_details.go:62`](../src/ui/jobs_view_details.go:62)) keeps the pane
-460 px wide, and that constant exists for an unrelated reason (readable command
-output). Lower it and the value column silently starves; feed the layout 240 px
-directly and the value renders at width 0 with no warning.
-
-The coupling is invisible in both files. Either give `captionValueLayout` its own
-minimum (shrink the caption once the value would drop below some floor, so the
-caption truncates first), or record the dependency at both ends.
-
-Related, same type: `MinSize` and `Layout` both `return` silently when
-`len(objects) != 2`. A miswired caller renders an empty row rather than failing.
-The type is package-private with one constructor (`detailRow`), so this is a
-documentation-grade nit, not a defect.
-
-### F10 — The detail caption list is written twice *(low, single fix)*
-
-`detailCaptionWidth()` ([`jobs_view_details.go:165`](../src/ui/jobs_view_details.go:165))
-hard-codes the eleven caption strings to measure the widest; `container()` writes
-the same eleven strings again, thirty lines above, to build the rows. They match
-today. Add a twelfth row and forget the list, and the new caption silently
-truncates — with no test to catch it, because the width is correct for the
-captions the function knows about.
-
-**Fix:** build the rows from one `[]struct{caption string; value fyne.CanvasObject}`
-and derive the width from that same slice.
-
-### F11 — The History table re-sorts its whole backing slice once per cell *(medium, single fix)*
-
-```go
-func(id widget.TableCellID, item fyne.CanvasObject) {
-    label.SetText(historyCellText(id, sortedEvents()))
-```
-
-`sortedEvents()` copies the event slice and `sort.SliceStable`s it — and it is
-called from the per-cell update callback. Measured with 300 events in a 1200×800
-window: **126 `UpdateCell` calls per `Refresh`, so 126 copies and 126 sorts of a
-300-element slice** for one redraw. A redraw runs on every recorded run, every
-service error, and every UI action, since `mainwindow.go`'s observer calls
-`refresh()` unconditionally.
-
-**Fix:** sort once per refresh into a slice the callback reads. The same callback
-also assigns a constant `fyne.TextStyle{}` that the row template already carries,
-then calls `label.Refresh()` for that assignment; with the assignment gone the
-`Refresh` goes too, because `SetText` already refreshes.
-
-### F12 — Jobs handlers repeat the work `refreshView` is about to do *(low, single fix)*
-
-`refreshView` already calls `syncFromService()`, recomputes `filteredJobs`,
-updates the details panel and calls `list.Refresh()`. Six handlers call
-`list.Refresh()` immediately before calling `refreshView()`
-(`jobs_view.go:238, 256, 270, 302, 315, 347`, plus `181`/`191` in the folder
-filter), and the pause handler additionally repeats `syncFromService()`.
-`widget.List.Refresh()` re-creates the row template and re-measures the row
-height, so this is not free. Where the earlier `syncFromService()` is genuinely
-needed — `folderOptions(jobs)` reads the refreshed slice — it should stay, with
-only the redundant `list.Refresh()` removed.
-
-### F13 — `settings_view.go` is 445 lines and speaks two dialects *(low, roadmap)*
-
-Past the ~250-line guideline in [ARCHITECTURE.md](ARCHITECTURE.md), and the split
-`jobs_view.go` already demonstrates the shape. Three seams are visible in the
-file as it stands:
-
-- **`settings_view.go`** — `settingsView`: field construction, save/load/validate.
-- **`settings_view_layout.go`** — `settingsSection`, `settingsRow`, the two
-  columns, the button row.
-- **`settings_view_helpers.go`** — `fyneVersion`, `mustParseURL`,
-  `settingsFolderPath`, `openFolder`, the file/folder pickers.
-
-Two composition inconsistencies to settle in the same pass rather than carry
-across the split:
-
-- The *Application* and *About* blocks use `settingsSection` (condensed spacing);
-  *Queue* and *Storage* inline `container.NewVBox(header, rows…)` (theme
-  spacing). Two spellings of "a titled block of rows" in one function. Both
-  comments justify the difference, but a `settingsSection(title, spacing, rows…)`
-  — or two named constructors — would say it once.
-- `chooseFile` and `chooseJSONFile` are the same eight lines apart from
-  `SetFilter`. One function taking a filter (`nil` for none) removes the copy.
-  Note `chooseFile` is also used by `job_dialog.go`, so it belongs with the
-  helpers, not with Settings.
-
-### F14 — `logColumnPadding = 24` *(low, single fix)*
-
-The cell is a `widget.Label`, whose text is inset by `theme.InnerPadding()` on
-each side: 16 px, plus table padding. 24 is a hand-tuned guess at that. Express
-it as `2*theme.InnerPadding()` (plus whatever margin is wanted, named) so it
-tracks the theme like the width it is added to already does. The three constants
-are also untyped `int` while every other width constant in the package is a typed
-`float32`.
-
-### F15 — Master/detail is a fixed `Border`, not a split *(low, roadmap)*
-
-`jobs_view.go:365-366` pins the sidebar at its `MinSize` in a `Border` left slot,
-so the user can never give the details pane more room or the job list less. This
-is what `container.NewHSplit` is for: a draggable divider, `SetOffset` for the
-initial ratio, and no `minWidthLayout` wrapper or `minJobsSidebarWidth` constant
-needed. It changes behaviour rather than just structure, so it is a roadmap item,
-not a cleanup — but it subsumes F7 outright, gives F9 a user-controlled escape
-(drag the divider left to widen the value column), and is the idiomatic Fyne
-composition for this screen.
-
-## What holds up — do not "fix" these
-
-- **`activityRowsHeight()` and `detailCaptionWidth()`.** Both derive their result
-  by measuring a real widget under the current theme. They are the pattern
-  everything else in the package should converge on, and they already behave
-  correctly at text size 20 (114.2→138.7 and 116.2→159.1).
-- **`minWidthLayout` degrades safely.** Because `MinSize` takes the *max* of the
-  configured width and the child's own minimum, a width routed through this layout
-  can never clip its content — it can only inflate a minimum. That is why F1 is a
-  sizing problem and not a rendering one, and it is the property the History
-  column widths in F6 lack.
-- **The compact/detailed row mechanism.** `applyRowMode` expressing the mode as
-  visibility, with the comment about `widget.List` caching the template's
-  `MinSize`, is correct and non-obvious; both call sites are needed.
-- **The negative spacing itself.** It does not overlap text at either measured
-  scale. F5 is about how the number is written, not about abandoning the
-  technique.
-- **`container.NewVScroll` around Settings.** It correctly keeps the tab from
-  dictating the window's minimum height. F1 is the same idea left half-applied.
-
-## Suggested order
-
-1. F2 + F3 together — they are the two causes of F1, and neither changes anything
-   visible above the minimum window width. Measured result: 1165.5 → **993.3**.
-   Verify by asserting the assembled content's `MinSize().Width` stays under the
-   1024 default in a test; that is the regression guard F1 has been missing. If
-   more headroom is wanted afterwards, deriving `settingsLabelWidth` from the
-   widest caption the way `detailCaptionWidth` does buys another 21.7 (→ 971.7).
-2. F4, F7, F14 — deletions, no behaviour change. F7 needs the test helper
-   re-anchored in the same commit.
-3. F11, F12 — redraw cost, self-contained.
-4. F5, F8, F10 — the workaround-shaped constants, once the deletions have settled.
-5. F6 — needs a per-column sample string decided first.
-6. F9, F13, F15 — back to [ROADMAP.md](ROADMAP.md).

docs/PLAN-gui-layout.md

@@ -1,477 +0,0 @@
-# Implementation plan — GUI layout cleanup
-
-## Context
-
-[GUI-LAYOUT-REVIEW.md](GUI-LAYOUT-REVIEW.md) recorded fifteen findings against
-the `ui` package's custom layouts, tuned constants, and view composition. This
-plan turns all fifteen into landable work.
-
-**Part A** (stages 1–6) is the set the review classified as single fixes: each
-stage is one commit, none of them changes what the user sees except where the
-stage says so. **Part B** (stages 7–8) is the roadmap-sized work — a file split
-and a behaviour change. **Stage 9** closes the roadmap item and ships the batch.
-
-Three decisions were open when this plan was written; all three are settled and
-folded in below:
-
-- **Scope: everything.** Part A, the `settings_view.go` split (stage 7) and the
-  draggable split pane (stage 8) all land, so the roadmap item closes completely
-  rather than carrying F9, F13 and F15 forward.
-- **The divider position is not persisted** (stage 8). It stays a `ui`-only
-  change with the initial ratio computed at build time; no new `Config` field.
-- **Row spacing unifies on −8** (stage 2), so `rowOverlap()` is the single
-  expression for the whole package.
-
-Finding IDs (F1…F15) refer to the review. One item found while writing this plan
-and not in the review is labelled N1.
-
-## Design decisions
-
-These are cross-cutting; settling them once keeps the stages from contradicting
-each other.
-
-- **A size that must track the theme is a function, not a `const`.**
-  `theme.Padding()` and friends read `fyne.CurrentApp()`, so they cannot be
-  evaluated at package init. `activityRowsHeight()` and `detailCaptionWidth()`
-  already establish the shape — measure a real widget under the current theme,
-  at build time. Every constant this plan replaces converges on that form, and
-  Stage 9 writes the rule into [STANDARDS.md](STANDARDS.md).
-- **One spacing idiom: named layouts.** The transparent-`canvas.Rectangle`
-  spacer disappears (F8). Where an exact size is needed and no stock layout
-  expresses it, a named `fyne.Layout` in `layout.go` does — which is why
-  `fixedHeightLayout` stays.
-- **`minWidthLayout` stays, its callers mostly do not.** The type is sound (it
-  takes the max, so it can never clip). Seven of its nine call sites are inert
-  (F2) and one never binds (F7); the survivor is the settings caption box, and
-  even that stops being a raw pixel count in Stage 6.
-- **The assembled window must fit the size the app asks for.** `run.go` opens at
-  1024×660; Fyne treats the content minimum as a hard floor. That becomes an
-  invariant with a test behind it (Stage 1), not a thing to re-measure by hand.
-- **"No visual change" is asserted, not claimed.** Stages 1 and 3 delete widths
-  on the grounds that nothing renders differently. Each carries a test that
-  measures geometry rather than trusting the argument in this document.
-- **No new dependencies.** Everything here is stock Fyne 2.7.4 plus the standard
-  library.
-
-## Part A — single fixes
-
-### Stage 1 — bring the window minimum under the default window size (F1, F2, F3)
-
-The headline finding: assembled content measures 1165.5×542.9 against a
-requested 1024×660, so Fyne silently widens the window and forbids dragging it
-back. Two causes, both in `settings_view.go`.
-
-**Changes**
-
-1. `src/ui/settings_view.go` — **F2**: delete `settingsControlWidth`
-   (line 30) and unwrap the seven controls that use it (lines 248, 252, 253,
-   254, 262, 263, 264), e.g. `settingsRow("Theme", themeSelect)`. `settingsRow`
-   puts the control in a `Border` centre slot, which already stretches it to the
-   column width, so the wrapper only ever inflated `MinSize`.
-2. `src/ui/settings_view.go:273` — **F3**: give the read-only config-path label
-   `Truncation = fyne.TextTruncateClip`, the non-deprecated form established by
-   commit 706aa8e. Extract it to a local so the assignment has somewhere to
-   live. This is what stops the tab's minimum from tracking the length of the
-   user's config path (1040 → 1165 → 1501 for 10-, 53- and 75-character paths).
-3. `src/ui/run.go:54-55` — replace the `1024` / `660` literals with
-   `defaultWindowWidth` / `defaultWindowHeight` consts so the test in this stage
-   asserts against the same numbers the app uses, with a comment recording that
-   Fyne enforces the content minimum over them.
-
-**Tests**
-
-- `src/ui/mainwindow_test.go` — `TestMainViewFitsTheDefaultWindowSize`: build
-  `newMainView` against a store whose `Paths.ConfigPath` is a deliberately long
-  path, then assert `content.MinSize()` is within
-  `defaultWindowWidth`×`defaultWindowHeight`. This is the regression guard F1
-  never had; the long path is what keeps F3 from silently regressing.
-- `src/ui/settings_view_test.go` — `TestSettingsRowStretchesItsControl`: resize a
-  `settingsRow` to a width above its minimum and assert the control fills the
-  remaining width. That is the property that makes F2's deletion invisible.
-
-**Expected result:** Settings minimum width 1165.5 → 993.3; the binding row
-becomes the *Notifications* checkbox, and the tab no longer widens with the
-config path.
-
-### Stage 2 — stock layout, theme-derived spacing (F4, F5)
-
-**Changes**
-
-1. `src/ui/layout.go` — delete `compactVBoxLayout` (lines 40–80). Verified
-   identical to `layout.NewCustomPaddedVBoxLayout` at spacings −8, −6, 0 and 4,
-   for the three-child, hidden-middle-child, single-child and empty cases; the
-   stock layout additionally handles `layout.Spacer`, which the copy ignored.
-2. `src/ui/jobs_view.go:139`, `src/ui/jobs_view_details.go:124`,
-   `src/ui/settings_view.go:323` — switch to
-   `container.New(layout.NewCustomPaddedVBoxLayout(rowOverlap()), …)`. Add the
-   `fyne.io/fyne/v2/layout` import to the latter two.
-3. `src/ui/layout.go` — **F5**: add `rowOverlap()` and delete
-   `detailRowSpacing`, `jobRowSpacing` (`jobs_view.go:29,35`) and
-   `settingsRowSpacing` (`settings_view.go:36`):
-
-   ```go
-   // rowOverlap is the (negative) gap that pulls stacked label rows together by
-   // exactly one label's vertical inner padding. Two adjacent labels each inset
-   // their text by theme.InnerPadding(), so the whitespace between two lines of
-   // text is double what a single row needs; removing one label's worth
-   // condenses the block without letting the text lines touch. Derived rather
-   // than hard-coded so it follows a theme that changes SizeNameInnerPadding.
-   func rowOverlap() float32 { return -theme.InnerPadding() }
-   ```
-
-   This carries over the explanation the deleted `compactVBoxLayout` comment
-   held, which is the part not documented upstream.
-
-**Decided:** Settings currently uses −6 where the other two use −8; adopting
-`rowOverlap()` moves it to −8, a 2 px tightening of the Application and About
-blocks, and that is the one deliberate visual change in Part A. Check it in the
-running app at step 4 of *Verification*; if it reads too tight, the fallback is a
-documented fraction (`rowOverlap() * 0.75`), never a reinstated literal.
-
-**Tests**
-
-- `src/ui/layout_test.go` (new) — `TestRowOverlapMatchesInnerPadding`: assert
-  `rowOverlap() == -theme.InnerPadding()` and that it is negative, under the
-  default theme and under a theme with a different inner padding.
-- Existing `TestJobListViewToggleShrinksRowsAndPersists` already covers that the
-  job rows still shrink in compact mode through the replacement layout; no new
-  test needed for F4 beyond a green run.
-
-### Stage 3 — delete the sidebar width floor (F7)
-
-**Changes**
-
-1. `src/ui/jobs_view.go:19` — delete `minJobsSidebarWidth`; at line 365 pass
-   `sidebar` straight to the `Border` left slot. The toolbar row already needs
-   448 against the constant's 400, so it has never bound, and a `Border` left
-   slot renders the child at exactly its `MinSize` width either way.
-2. `src/ui/jobs_view_test.go:141` — re-anchor `jobsSidebar`, which currently
-   finds the sidebar by looking for a `minWidthLayout` container. Anchor it on
-   the pane structure instead: the `Border`'s left object is the sidebar
-   (`panel.Objects[1]` — `NewBorder` appends slots after the centre object).
-   Add the same one-line comment the row-template code uses about `NewBorder`
-   ordering, since this is the second place that ordering is relied on. Stage 8
-   moves this anchor once more, to the split's `Leading`.
-
-**Tests**
-
-- `src/ui/jobs_view_test.go` — `TestJobsSidebarWidthIsItsContent`: assert the
-  sidebar's `MinSize().Width` equals the toolbar row's, i.e. that nothing else
-  imposes a floor. The existing `jobsList`/`jobsViewToggle` helpers exercise the
-  re-anchored lookup.
-
-### Stage 4 — redraw cost (F11, F12)
-
-**Changes**
-
-1. `src/ui/history_view.go:133-148` — **F11**: hoist the sort out of the per-cell
-   callback. Keep a `rows []event` snapshot beside `descending`; a `resort()`
-   closure refills it. Call `resort()` when the view is built, from `refresh()`
-   (line 179) before `table.Refresh()`, and from the header tap handler
-   (line 157) after flipping `descending`. **The length callback must switch
-   from `len(*events)` to `len(rows)`** — today it is safe only because each
-   cell re-derives the sorted slice from the same source, and a cache breaks
-   that agreement. Cells then read `rows` directly.
-   Drop the `label.TextStyle = fyne.TextStyle{}` assignment (the template
-   already carries the zero value) and the `label.Refresh()` that exists for it,
-   since `SetText` refreshes.
-2. `src/ui/history_view.go:109-121` — hoist the `headers` slice out of
-   `headerText` into a package-level `var historyHeaders = [...]string{…}`; it
-   is currently reallocated on every header-cell update.
-3. `src/ui/jobs_view.go` — **F12**: delete the `list.Refresh()` calls that
-   immediately precede `refreshView()` (lines 238, 256, 270, 302, 315, 347) and
-   the duplicate `syncFromService()` at line 314. `refreshView` already does
-   both. Keep the `syncFromService()` calls at 228, 253 and 333 — `folderOptions(jobs)`
-   reads the refreshed slice on the next line.
-   **Careful with line 181:** the folder-filter handler returns early when the
-   filter matches nothing, and that path never reaches `refreshView()`, so its
-   `list.Refresh()` is load-bearing. Move it into the early-return branch rather
-   than deleting it.
-
-**Tests**
-
-- `src/ui/history_view_test.go` — `TestHistorySortToggleKeepsRowsInSync`: build
-  the view over N events, flip the sort through the header tap, assert the first
-  and last cell text; append an event, call `refresh`, assert the row count and
-  the new event's placement in both orders. This is the regression test for the
-  cache-versus-length hazard the change introduces (severity medium →
-  regression test required by [STANDARDS.md](STANDARDS.md)).
-- `src/ui/jobs_view_test.go` — extend an existing button test to assert the
-  selection and details survive a handler that lost its `list.Refresh()`.
-
-**Measured motivation:** 300 events in a 1200×800 window produced 126
-`UpdateCell` calls per `Refresh`, each copying and sorting the whole 300-element
-slice, on every recorded run.
-
-### Stage 5 — content-measured History columns (F6, F14)
-
-The Log column already sizes itself from its content; the other five are pixel
-counts with as little as 1.6 px of headroom, and three of them truncate their own
-values at text size 20.
-
-**Changes**
-
-1. `src/ui/history_view.go:45-74` — generalise `logColumnWidth` into one helper:
-
-   ```go
-   // textColumnWidth returns the width a table column needs to show the widest
-   // of the given samples in full, measured under the current theme so it
-   // follows text size and DPI, and clamped to [min, max].
-   func textColumnWidth(samples []string, min, max float32) float32
-   ```
-
-   with `cellPadding()` = `2 * theme.InnerPadding()` replacing the hand-tuned
-   `logColumnPadding = 24` (**F14**), and the min/max bounds themselves expressed
-   as measured text (`textWidth(strings.Repeat("0", 30))`) rather than raw
-   pixels. The three surviving bounds become typed `float32`, matching every
-   other width in the package.
-2. `src/ui/history_view.go:169-174` — feed each column its samples:
-   - **Time** — the timestamp format itself (`2006-01-02 15:04:05` rendered), a
-     fixed width; no content scan needed.
-   - **Trigger** — the known trigger strings (`Schedule`, `Manual`, `UI`,
-     `Unknown`), a closed set.
-   - **State** — the known state strings (`Succeeded`, `Failed`, `Started`,
-     `Error`, `Jobs loaded`), likewise closed.
-   - **Job** and **Detail** — free text: measure the values actually present,
-     bounded like the Log column so one long row cannot dominate the table.
-3. `refresh` (line 179) recomputes all content-derived columns, not just Log.
-
-**Tests**
-
-- `src/ui/history_view_test.go` — `TestHistoryColumnsFitTheirContent`: for each
-  column, at the default text size and at a scaled theme, assert the configured
-  width is at least what its widest sample measures. Table-driven, and it fails
-  today for Time, Trigger and State at text size 20.
-- `TestTextColumnWidthClamps`: below-min, in-range and above-max samples.
-
-**Note:** the trigger and state strings are produced in `app`/`runner`
-(`app.StatusText`, the run recorder). The samples live in `ui` next to the
-column they size; a comment should point at where the real strings come from so
-a new state gets added in both places.
-
-### Stage 6 — one caption-width helper, button row, truncation idiom (F8, F10, N1, F9 nit)
-
-**Changes**
-
-1. `src/ui/layout.go` — **F10**: one helper for both views:
-
-   ```go
-   // captionColumnWidth returns the width to reserve for a column of bold
-   // captions: the widest of them, measured under the current theme so it tracks
-   // text size and DPI instead of a hand-tuned constant.
-   func captionColumnWidth(captions ...string) float32
-   ```
-
-2. `src/ui/jobs_view_details.go:119-191` — build the metadata rows and their
-   width from **one** list instead of two. Today `detailCaptionWidth` hard-codes
-   the eleven captions and `container()` writes the same eleven again thirty
-   lines away; a twelfth row added to one and not the other silently truncates.
-
-   ```go
-   type detailRowSpec struct {
-       caption string
-       value   fyne.CanvasObject
-   }
-
-   func (d *detailsPanel) metadataRows() []detailRowSpec
-   ```
-
-   `container()` derives `capW := captionColumnWidth(captions(specs)...)`, then
-   walks the slice two at a time into `detailRowPair`, with the odd tail
-   (Statistics) falling through to a single `detailRow`. `detailCaptionWidth`
-   disappears.
-3. `src/ui/settings_view.go:26-29,440-445` — delete `settingsLabelWidth` and
-   derive the caption box the same way. Worth 21.7 px per column on top of
-   Stage 1 (993.3 → 971.7), and it removes the last raw-pixel width in Settings.
-   `settingsRow` gains a `captionWidth float32` first parameter and `settingsView`
-   computes it once from the full caption list — exactly how `detailRow` already
-   takes the width `container()` measured, rather than re-measuring per row.
-4. `src/ui/settings_view.go:299-311` — **F8**: delete both transparent
-   `canvas.Rectangle` spacers for
-
-   ```go
-   container.New(
-       layout.NewCustomPaddedLayout(2*theme.Padding(), 0, theme.Padding(), 0),
-       container.NewHBox(saveSettings, cancelSettings, restoreDefaults, settingsStatus),
-   )
-   ```
-
-   which reproduces the current 12 px top gap exactly while fixing the left
-   inset to the 4 px the comment promises — measured, the rectangle version puts
-   the first button at x = 8, because `HBox` adds its own padding *after* the
-   spacer. The `image/color` and `fyne.io/fyne/v2/canvas` imports go with it.
-5. **N1** (not in the review) — `fyne.TextTruncate` as a `Wrapping` value is
-   deprecated in Fyne 2.7.4 and commit 706aa8e converted exactly one call site.
-   Eight remain: `settings_view.go:128,442`,
-   `jobs_view_details.go:67,155,187,195`, `history_view.go:88,139`. Convert them
-   to `Truncation = fyne.TextTruncateClip` in one pass. **`jobs_view_details.go:67`
-   and `:155` must change together** — the second measures a sample label that
-   has to stay identical to the first, which is the whole basis of
-   `activityRowsHeight`.
-6. `src/ui/layout.go:121-136` — **F9 (nit half)**: `captionValueLayout.MinSize`
-   and `Layout` both return silently when `len(objects) != 2`. Document why that
-   is acceptable (package-private, one constructor) at the type, so the next
-   reader does not have to work it out. The substantive half of F9 is Stage 8.
-
-**Tests**
-
-- `src/ui/jobs_view_test.go` — `TestDetailCaptionWidthCoversEveryCaption`: for
-  every spec `metadataRows()` returns, the bold caption measures no wider than
-  `captionColumnWidth` returns. This is the guard that makes the single list
-  self-enforcing.
-- `src/ui/settings_view_test.go` — the same assertion for the settings captions.
-- `src/ui/layout_test.go` — `captionColumnWidth` over an empty list, one caption,
-  and at two text sizes.
-
-## Part B — larger, but decided
-
-### Stage 7 — split `settings_view.go` (F13)
-
-445 lines against the ~250 guideline in [ARCHITECTURE.md](ARCHITECTURE.md), and
-`jobs_view.go` already demonstrates the shape. Stages 1 and 6 remove roughly 25
-lines from it, so the split should follow them, not precede them.
-
-**Changes**
-
-- `settings_view.go` — `settingsView`: field construction, save, load, validate.
-- `settings_view_layout.go` — `settingsSection`, `settingsRow`, the two columns,
-  the button row.
-- `settings_view_helpers.go` — `fyneVersion`, `mustParseURL`,
-  `settingsFolderPath`, `openFolder`, `chooseFile`/`chooseFolder`.
-- Two composition inconsistencies to settle in the same pass rather than carry
-  across the split:
-  - *Application* and *About* use `settingsSection` (condensed); *Queue* and
-    *Storage* inline `container.NewVBox(header, rows…)` (theme spacing). Two
-    spellings of "a titled block of rows" in one function. Resolve to
-    `settingsSection(title, spacing, rows…)` or two named constructors.
-  - `chooseFile` and `chooseJSONFile` differ only by `SetFilter`. One function
-    taking a filter (`nil` for none) removes the copy. `chooseFile` is also
-    `job_dialog.go`'s, so it belongs with the helpers, not with Settings.
-- `docs/ARCHITECTURE.md` — add a file-structure table for `settings_view.go`
-  beside the existing `jobs_view.go` one (~line 206).
-
-**Tests:** no new behaviour, so the existing suite is the check. Worth adding
-`settings_view_test.go` coverage for the deduplicated picker's filter argument.
-
-### Stage 8 — draggable master/detail split (F15, F9)
-
-`jobs_view.go:365-366` pins the sidebar at its `MinSize` in a `Border` left slot,
-so the user can never trade list width for detail width. `container.NewHSplit`
-is the idiomatic Fyne answer: a draggable divider, `SetOffset` for the initial
-ratio. It gives F9 a user-controlled escape — the details value column bottoms
-out at 107.8 px today, kept non-empty only by the unrelated 460 px minimum on the
-command-output scroll.
-
-**Decided: the divider position is not persisted.** No `Config` field, no
-`domain`/`storage`/`app` changes, no config-compatibility tests — the stage stays
-inside `src/ui` and is one commit. A restart reopens at the computed default.
-If persistence is wanted later it is an additive `omitempty` field whose zero
-value means "compute the default", which is exactly the pattern
-[STANDARDS.md](STANDARDS.md) already requires.
-
-**Changes**
-
-1. `src/ui/jobs_view.go:365-366` — replace the `Border` with
-   `container.NewHSplit(sidebar, container.NewPadded(dp.container()))`.
-2. Initial offset: `SetOffset` takes a ratio, but the sidebar's natural width is
-   absolute (448). A fixed ratio is wrong at both ends — 0.44 fits 1024 but hands
-   the sidebar 700 px at 1600. Compute it at build time from
-   `sidebar.MinSize().Width / defaultWindowWidth` (the const Stage 1 introduces),
-   with a comment saying why it is derived rather than a literal.
-3. This retires what is left of F7's wrapper. Stage 3 still lands first and on
-   its own — Part A has to stand up even if this stage were deferred — which
-   costs one extra line in `jobsSidebar`: Stage 3 anchors it on
-   `panel.Objects[1]` (the `Border` left slot), this stage moves it to the
-   split's `Leading`.
-
-**Tests**
-
-- `src/ui/jobs_view_test.go` — `TestJobsSplitOpensAtTheSidebarWidth`: assert the
-  computed offset gives the leading pane at least its content minimum at the
-  default window width, so the toolbar is never born clipped.
-- Verify manually (Verification step 7) that dragging the divider hard left
-  degrades the details pane instead of clipping it: `HSplit` lets either side
-  shrink to its content minimum, which for the details pane is the 460 px
-  command-output floor.
-
-### Stage 9 — close-out
-
-1. `docs/STANDARDS.md` — add the rule this review established, under *Code
-   quality*: **a size that must follow the theme is measured at build time, not
-   written as a pixel constant** — `activityRowsHeight`, `captionColumnWidth`,
-   `rowOverlap` and `textColumnWidth` as the examples.
-2. `docs/ROADMAP.md` — remove the *GUI review — custom layouts and composition*
-   item outright. With Part B in scope, nothing from it carries forward.
-3. `docs/CHANGELOG.md` — a `## 0.16.0` section. User-visible: the window opens
-   at the size it is asked for and can be dragged smaller; the Jobs pane divider
-   is draggable; History columns stay readable on a scaled UI; the Settings
-   button row is aligned as intended; the details/settings blocks shift by ~2 px.
-   The rest is internal and belongs in the commit messages, not here.
-4. `src/app/version.go` — `0.15.0` → `0.16.0`.
-5. Delete `docs/PLAN-gui-layout.md` and `docs/GUI-LAYOUT-REVIEW.md`, the way
-   `docs/plans/per-job-timeout.md` was removed once shipped (2ab5f07) — the
-   findings live on in the CHANGELOG and STANDARDS entries, and with the whole
-   plan implemented the review has nothing left to hold open.
-
-## Recommended model per stage
-
-Which Claude model to run each stage on. The split is by *judgement density*,
-not by diff size: the stages that only move code around are the cheap ones, and
-the stages that can break something silently are not.
-
-| Stage | Model | Why |
-|---|---|---|
-| 1 — window minimum (F2, F3) | Sonnet 5 | Small deletions, but the new geometry test has to assert the right thing. The plan already fixes the numbers, so there is little left to decide. |
-| 2 — stock layout, `rowOverlap` (F4, F5) | Sonnet 5 | Mechanical: delete a type, swap three call sites, add two imports. The equivalence it rests on is already measured. |
-| 3 — sidebar floor (F7) | Sonnet 5 | One constant and one wrapper out; the only care needed is the `NewBorder` slot ordering in the test helper, which the plan spells out. |
-| **4 — redraw cost (F11, F12)** | **Opus 5** | The one stage that can break History silently. Caching the sorted slice forces the length callback off `len(*events)`, and the `list.Refresh()` at `jobs_view.go:181` is load-bearing on an early-return path. Both are easy to get subtly wrong and neither shows up as a compile error. |
-| 5 — History columns (F6, F14) | Sonnet 5 | The helper's shape is specified. One cross-package check: the trigger and state sample strings must match what `app`/`runner` actually emit. |
-| 6 — caption width, button row, truncation (F8, F10, N1) | Sonnet 5 | Broad but mechanical. The one trap is paired: `jobs_view_details.go:67` and `:155` must change together or `activityRowsHeight` stops mirroring the real row. |
-| 7 — split `settings_view.go` (F13) | Sonnet 5 | Pure code movement plus two small dedups. Large diff, low judgement — but re-read the moved file ends for dropped functions. |
-| **8 — HSplit (F15, F9)** | **Opus 5** | Behaviour change. The offset derivation and "does the pane degrade or clip when dragged hard left" are judgement calls that a headless test cannot settle. |
-| **9 — close-out (docs, version)** | **Opus 5** | CHANGELOG and STANDARDS prose held to the standard the rest of `docs/` sets, which is the expensive part of this repo's doc convention. |
-
-Notes:
-
-- **Escalate on the second failure.** If a stage's tests fail twice for reasons
-  the plan did not anticipate, the assumption behind that stage is wrong — move
-  it to Opus 5 rather than iterating.
-- **Verification is model-independent.** `scripts\test.bat` and the manual GUI
-  pass below are the gate regardless of who wrote the diff; a cheaper model does
-  not mean a lighter check.
-- Haiku 4.5 is deliberately not recommended for any stage here: every one of
-  them edits GUI code whose correctness is geometric rather than textual, and
-  the cheapest stages are already short enough that the saving is small.
-- Fable 5 is left out because its trade-offs are not characterised well enough
-  here to recommend it for a specific stage, not because it was judged unfit.
-
-## Verification
-
-Per stage:
-
-```bash
-export PATH="/c/msys64/ucrt64/bin:$PATH"; export CGO_ENABLED=1; go build ./... && go vet ./... && go test -race ./...
-```
-
-or `scripts\test.bat` from the cgo-enabled PowerShell shell described in
-[CLAUDE.md](../CLAUDE.md).
-
-After Part A, run the app (`go run ./cmd/gosentry`) and check the things no
-headless test covers:
-
-1. The window opens at 1024×660 and can be dragged **narrower** than it opens —
-   the F1 symptom, gone.
-2. Settings looks unchanged at the default window width: controls still fill
-   their column, captions still align, the config path is readable and clips
-   only when the window is genuinely narrow.
-3. The Save/Cancel/Defaults row keeps its gap below the separator and sits 4 px
-   from the left edge, not 8.
-4. Jobs rows and the details metadata block are unchanged in Detailed and in
-   Compact; the Application/About blocks in Settings are 2 px tighter (Stage 2's
-   one deliberate change).
-5. History still sorts both ways from the Time header, new runs still append,
-   and columns hold their content.
-6. Repeat 2, 4 and 5 with a scaled desktop (or a temporary theme override with a
-   larger `SizeNameText`): nothing that used to be a pixel constant should clip.
-7. Resize the window to its minimum in both directions and confirm the details
-   pane degrades rather than clipping — the check the roadmap item asked for.

docs/REVIEW.md

@@ -1,86 +0,0 @@
-# GoSentry — Review Agenda
-
-What to look at when reviewing the project as a whole, as opposed to a single
-diff. This is the agenda; the rules a review checks against live in
-[STANDARDS.md](STANDARDS.md) and [ARCHITECTURE.md](ARCHITECTURE.md).
-
-Scope note: a normal pull-request review checks the change. This agenda is for
-a periodic sweep of the whole codebase, so a pass may legitimately end with
-"nothing to report" on most items.
-
-## 1. Architecture and project structure
-
-Does the code still match the package map and the event flow in
-[ARCHITECTURE.md](ARCHITECTURE.md)? Watch for the boundaries that matter here:
-`app.Service` as the sole owner of job and runtime state, the UI reading it
-through typed events, `domain` staying free of I/O, and platform-specific code
-staying behind the `platform/*` interfaces.
-
-## 2. Complexity against the size of the project
-
-GoSentry is a single-process desktop app with two direct dependencies. Flag
-abstraction that is not paying for itself: interfaces with one implementation
-and no test seam, indirection added for a use case nobody has asked for, a new
-dependency where thirty lines of standard library would do. Also check the
-opposite direction — files that have grown past the size guideline in
-ARCHITECTURE and should be split the way `jobs_view.go` was.
-
-## 3. Code quality
-
-The checkable rules are in [STANDARDS.md](STANDARDS.md) — error handling, unit
-tests for pure helpers, regression tests for fixes, `fyne.Do` for updates off
-the main thread. Beyond them: concurrency around `Service.mu`, goroutines whose
-lifetime is not obvious, and error paths that report something less useful than
-what they caught.
-
-## 4. Documentation and comments
-
-Does every documented behavior still exist, and does every non-obvious behavior
-get documented? Check the doc set against the code: README (user-facing
-behavior and config keys), ARCHITECTURE (packages and flows), STANDARDS
-(rules and intentional behavior), DEVELOPMENT (build), TESTS, PERFORMANCE,
-CHANGELOG (an entry per notable change). For comments, the bar is *why*, not
-*what* — a comment restating the line below it is noise; an unexplained
-workaround is a finding.
-
-## 5. Readability and maintainability
-
-Read a package as someone who has not seen it before. Can the next change be
-made without reverse-engineering? Naming that matches the domain vocabulary,
-functions that do one thing, and control flow that does not need a diagram.
-
-## 6. Logical errors
-
-Correctness independent of style: scheduling and timing edge cases (overlap
-policy, sequential mode, pause interactions), off-by-one and boundary handling,
-zero values that mean something (see the timeout rules in STANDARDS), state
-that can be observed mid-update, and error paths that leave state inconsistent.
-
-## 7. Legacy code and migrations
-
-The app has no database, so migration means file compatibility: `gosentry.json`
-and `jobs.json` written by an older version must keep working. Check that new
-`Config` fields are backward compatible, that normalization happens in one
-place, and that values which are meaningful zeros are not normalized away. Also
-look for code kept alive only for a case that no longer exists.
-
-## 8. Undocumented or under-documented contentious decisions
-
-Any decision a future reader would question needs its reasoning recorded where
-it lives: a comment at the code, an entry in the "Intentional behavior" section
-of [STANDARDS.md](STANDARDS.md), or — when the work is deferred rather than
-decided — a note in [ROADMAP.md](ROADMAP.md), which is where the frozen
-window-size work keeps its rationale.
-
-## 9. Other improvement proposals
-
-Anything that does not fit above: build and release ergonomics, test coverage
-gaps, dependency health, UX rough edges.
-
-## What happens to the findings
-
-- A defect → fix it, with a regression test when severity is medium or higher.
-- Behavior that turns out to be deliberate → record it under "Intentional
-  behavior" in [STANDARDS.md](STANDARDS.md) so it is not re-reported.
-- Work larger than a single fix → [ROADMAP.md](ROADMAP.md), with the reasoning.
-- A new rule the review establishes → [STANDARDS.md](STANDARDS.md).

docs/ROADMAP.md

@@ -5,6 +5,64 @@ Completed work is recorded in [CHANGELOG.md](CHANGELOG.md), not here.
 
 ## Open Items
 
+### Faster Windows failure notifications
+
+Fyne `SendNotification` on Windows does not call WinRT directly. Each toast
+writes a short script to `%TEMP%` and runs it through a **new PowerShell
+process** (`app/app_windows.go`), which typically adds **1–3 seconds** of cold
+start before the toast appears. GoSentry's own path from run completion through
+`SendNotification` is much smaller and is logged separately.
+
+**Baseline (2026-08-05, `scripts/measure-windows-toast.ps1`, 3 runs on dev
+machine):** average **773 ms** per toast (695–874 ms), dominated by PowerShell
+cold start. Re-run the script when comparing after a native toast implementation.
+
+**App-side timing:** each failure notification appends one line to
+`logs/notify-timing.tsv` (`ms_after_run`, `ms_fyne_do`, `ms_send`,
+`ms_app_total`). These columns end when Fyne returns from `SendNotification`; OS
+toast latency is not included. The `.tsv` extension keeps it out of
+`runner.CleanupLogs`, which only manages `.log` files — this file is
+diagnostic instrumentation for this item, not job output, and should be
+removed (or unified with the run-log retention policy under its own knob) once
+the native-toast direction below lands and the timing data is no longer
+needed.
+
+**Direction:** add `src/platform/notify/` with a native Windows toast (WinRT or
+a maintained Go wrapper), used for failure notifications on Windows. Keep Fyne
+`SendNotification` on Linux (DBus / xdg-desktop-portal) unless profiling shows it
+needs the same treatment.
+
+### Retire the config compatibility shims
+
+Two read-only shims in `storage.loadOrCreateConfig` rewrite an old file into
+the current shape on the next save, so each becomes dead the moment a user's
+config has been saved once by a build that has it:
+
+- `Config.JobsDir` (pre-0.15, superseded by `Config.JobsFile`).
+- `Theme == "default"` (pre-1.0.1, superseded by `ThemeSystem`).
+
+Neither has an expiry. Remove both — the field, the migration branch, and
+`TestLoadOrCreateConfigMigratesJobsDir` /
+`TestLoadOrCreateConfigMigratesLegacyThemeDefault` — once a release has shipped
+long enough that a config file still carrying either old shape is not a
+realistic upgrade path GoSentry needs to support.
+
+### Dynamic tray icon toggle
+
+Fyne exposes `SetSystemTrayIcon` and related APIs only at application startup.
+There is no supported way to register or remove the notification-area icon
+after the process is running.
+
+GoSentry now honours `KeepRunningInTray` from config: close behaviour and the
+autostart entry update immediately when the user saves Settings; the tray icon
+follows the saved value on the next launch. Settings shows a restart hint when
+the tray checkbox changes.
+
+Revisit when Fyne adds a documented API for mid-session tray registration, or
+when a stable cross-platform approach exists without reaching into driver
+internals. Until then, removing the restart hint and applying the icon on save
+is blocked.
+
 ### Update check from GitHub releases
 
 Releases are published as GitHub Releases (tags like `v0.12.0`, built by
@@ -81,49 +139,54 @@ Design notes / open questions:
   Service exposes import/export operations; the UI only picks the file and
   shows the outcome.
 
-### GUI review — custom layouts and composition
+### Split the files that are over the size guideline
 
-**The review has been carried out — its findings are in
+[ARCHITECTURE.md](ARCHITECTURE.md) sets a ~250-line guideline per source file
-[GUI-LAYOUT-REVIEW.md](GUI-LAYOUT-REVIEW.md).** This item stays open until they
+and records the `jobs_view.go` and `settings_view.go` splits as the worked
-are applied; F9, F13 and F15 there are larger than a single fix and come back
+examples. `jobs_view.go` was split again in 1.0.3 — into view, state, list, and
-here once the rest has landed. The agenda below is what the pass was asked to
+toolbar — because the selection defect it carried was a symptom of the size
-answer.
+(one 330-line constructor over seven shared locals). Six non-test files are
+over the guideline:
 
-The `ui` package has accumulated hand-written layouts and tuned constants that
+| File | Lines |
-work but have never been reviewed as a whole:
+|------|-------|
-[`layout.go`](../src/ui/layout.go) holds four custom `fyne.Layout`
+| `src/app/operations.go` | 529 |
-implementations (`minWidthLayout`, `compactVBoxLayout`, `fixedHeightLayout`,
+| `src/storage/store.go` | 382 |
-`captionValueLayout`), and the views drive them with negative spacings
+| `src/ui/history_view.go` | 355 |
-(`detailRowSpacing = -8`, `jobRowSpacing = -8`, `settingsRowSpacing = -6`) that
+| `src/ui/settings_view.go` | 326 |
-cancel out the built-in padding of Fyne widgets.
+| `src/app/run.go` | 275 |
+| `src/app/service.go` | 252 |
 
-Do a focused pass over composition only — not a general code review — and
+The remaining six are deliberately deferred rather than done piecemeal: a
-answer, per layout and per constant: is it still needed, is it the smallest
+split touches every reader of the file, and doing them in one pass keeps the
-thing that works, and does it hold up at different window sizes and theme
+seams consistent instead of settling each one its own way. Splitting is
-scales.
+also the kind of change that reads as pure movement while quietly dropping a
+function, so it wants one careful pass, not a hurried one per file.
 
-What to look for:
+Seams visible today, as a starting point rather than a decision:
 
-- *Negative spacing as a workaround.* Pulling rows together to overlap label
+- **`operations.go`** — the worst overage and the clearest split: the public
-  padding is a workaround for widget metrics, not a layout decision. Check
+  mutating operations (`CreateJob` … `UpdateSettings`), the `…Locked` state
-  whether a `widget.Form`, a grid, or a custom text row would express the same
+  helpers that only they call, and the pure validators and normalizers
-  result without depending on the padding a future Fyne release may change.
+  (`normalizeJob`, `validateJob`, `hasFileName`, `validateConfig`) are three
-- *Hard-coded pixel constants.* Widths and heights expressed in raw pixels
+  distinct jobs already sitting in three consecutive blocks.
-  (`logColumnMinWidth`, `minJobsSidebarWidth`, `settingsControlWidth`) do not
+- **`history_view.go`** — the column-measuring helpers (`textWidth` through
-  follow `theme.Padding()` / text size, so they behave differently under a
+  `historyColumnWidths`) are pure, already unit-tested, and independent of the
-  scaled UI. `activityRowsHeight` already derives its height from the theme —
+  table they size.
-  decide which of the rest should do the same.
+- **`store.go`** — path resolution, the config load/normalize path, and the jobs
-- *Layouts with one call site.* `fixedHeightLayout` is used once. If a stock
+  load/normalize path are three separate concerns in one file.
-  container expresses the same intent, deleting the type is a net win — the
+- **`run.go`**, **`settings_view.go`**, **`service.go`** — barely over. Worth
-  complexity rule in [REVIEW.md](REVIEW.md) §2 applies to layouts too.
+  re-measuring at the time; if a pass elsewhere has shrunk them, leave them
-- *File size.* `settings_view.go` is well past the ~250-line guideline in
+  alone rather than splitting for the sake of the number. The counts above move
-  [ARCHITECTURE.md](ARCHITECTURE.md) and should be split the way `jobs_view.go`
+  a few lines either way with any edit, so re-measure before acting on them
-  was.
+  rather than treating the table as current.
-- *Behaviour at small sizes.* The details pane was condensed to fit 720p; verify
-  the current composition still degrades sensibly when the window is narrow or
-  short, instead of clipping.
 
-Findings that are single fixes go straight in; anything larger comes back here.
+The `jobs_view.go` pass is the worked example for the rest: the constructor was
+broken up along the state it shared, not along line count, and the split landed
+with the selection fix rather than promising it separately.
+
+Scope note: the guideline is about source files. Test files are much larger and
+that is fine — a table-driven test file grows with the cases it covers.
 
 ### Window size persistence *(frozen)*
 

docs/STANDARDS.md

@@ -1,8 +1,7 @@
 # GoSentry — Standards
 
 Quality rules and intentional behavior for contributors. Package contracts live
-in [ARCHITECTURE.md](ARCHITECTURE.md); test conventions in [TESTS.md](TESTS.md);
+in [ARCHITECTURE.md](ARCHITECTURE.md); test conventions in [TESTS.md](TESTS.md).
-what a whole-project review looks at, in [REVIEW.md](REVIEW.md).
 
 ## Code quality
 
@@ -12,6 +11,25 @@ what a whole-project review looks at, in [REVIEW.md](REVIEW.md).
 - Fixes with severity ≥ medium → regression test.
 - Documented intentional behavior → section below, not a backlog bug.
 - UI view constructors accept `*app.Service`; call `app.Open()` only from `run.go`.
+- **No blocking file I/O under `Service.mu`.** It is the lock the Fyne main
+  thread takes on every `Jobs()` and `Runtime()` call, so a JSON write, a
+  log-directory scan, or a pass over every log header inside it makes a UI
+  refresh wait on the disk. Mutate state under the lock, snapshot what the I/O
+  needs, and run the I/O after `mu.Unlock()` — the way `emit()` already is.
+  Store writes go through `Service.deferSaveLocked` and `Store.PrepareSaveJobs` /
+  `Store.PrepareSaveConfig`, which take `saveMu` while `mu` is still held so
+  writes still reach the file in the order their snapshots were taken; log
+  cleanup and `runner.SeedStats` run from plain snapshots.
+- A size that must follow the theme is **measured at build time, not written as
+  a pixel constant.** `theme.Padding()` and text metrics depend on the running
+  app's theme, text size, and DPI, so a hand-tuned number is only correct for
+  the one theme it was tuned against and clips under any other. Measure the real
+  widget, or derive the value from the theme, in a named helper: `rowOverlap`
+  (theme padding), `captionColumnWidth` and `textColumnWidth` (the widest of the
+  actual strings), `activityRowsHeight` (the list's own row template). The same
+  applies to a ratio computed from an absolute width — see `initialSplitOffset`.
+  A raw pixel literal is left only where nothing about it tracks the theme, and
+  says so in a comment.
 
 ## Config file compatibility
 
@@ -53,11 +71,75 @@ change to their shape has to stay compatible on its own.
   = 0) and is overridable per job (`Job.TimeoutSeconds *int`: unset = inherit the
   global default, 0 = no timeout, positive = seconds). Neither zero may be
   normalized away on load — 0 is a value, not a missing field.
+- **`Config.MaxLogFiles` and `Config.MaxLogAgeDays` of 0 mean "keep everything",
+  not "unset".** `runner.CleanupLogs` already treated `<= 0` as "policy
+  disabled"; `app.validateConfig` and the Settings form now accept 0 (only a
+  negative count is rejected), and `storage.loadOrCreateConfig` no longer
+  backfills 0 to 100 / 30 — a config written before either field existed still
+  picks up the default because `json.Unmarshal` leaves an absent key holding
+  whatever `DefaultConfig()` set, the same mechanism `DefaultTimeoutSeconds`
+  relies on.
+- **A `StartOnly` process is expected to outlive GoSentry.** The option exists to
+  launch something and let go of it, so the runner builds that invocation on
+  `context.Background()`, not on the application's lifecycle context: quitting
+  GoSentry (or cancelling a run) does not stop a process it started this way, and
+  `Service.Stop()` reaches only jobs the runner is still waiting on. The
+  uncancelable context is also what keeps `os/exec` from leaving a watcher
+  goroutine per run — it only starts one when the context can be done, and
+  `StartOnly` never calls `Wait` to end it.
 - **History tab is session-only.** `JobRuntime.Logs` exists only in memory for the
   current process. Log files on disk feed aggregate statistics via `SeedStats`
   only. See [ARCHITECTURE.md](ARCHITECTURE.md).
+- **History is capped and its columns only widen.** The tab keeps the newest
+  `maxHistoryRows` records and drops the oldest, the way `maxJobLogs` caps a
+  job's own activity list — an app left in the tray records thousands of runs a
+  day, each carrying the run's full captured output. Column widths are folded in
+  one record at a time instead of rescanned from every row, so a column never
+  narrows when a record ages out: the rows on screen were laid out against the
+  wider value. A theme change is the one case that rescans, because every stored
+  width was measured at the old text size.
+- Several tests share a coverage profile with another test on purpose, and a few
+  functions sit at 0% on purpose. Both lists live in
+  [TESTS.md](TESTS.md) — check them before reporting a test as redundant or a
+  coverage gap as an oversight.
+- **`KeepRunningInTray` controls tray and close behavior.** When enabled (the
+  default), the app registers a system tray icon at launch, closing the window
+  hides it, and autostart passes `--start-in-tray`. When disabled, no tray icon
+  is registered at launch, closing the window quits the app, and autostart opens
+  the main window. Toggling the setting in Settings updates close behavior and
+  rewrites the autostart entry immediately; the tray icon itself follows the
+  saved value only after a restart because Fyne has no API to add or remove it
+  mid-session (see [ROADMAP.md](ROADMAP.md)).
+- **`--start-in-tray` defers to config.** A stale autostart shortcut that still
+  passes the flag does not hide the window when `KeepRunningInTray` is off.
+- **`JobRuntime.PendingRuns` (the "queue" overlap policy's backlog) is capped at
+  `maxPendingRuns` (10) and cleared on pause or disable.** A job whose runs take
+  longer than its interval stops accumulating backlog once the cap is hit —
+  further overlaps are dropped like the "skip" policy until the backlog drains
+  below the cap. `SetGlobalPause(true)` and `SetEnabled(id, false)` both zero
+  the counter, so resuming or re-enabling a job never replays a deferred run for
+  an occurrence that fired before the pause/disable. The details pane appends
+  ", N queued" to the statistics line via `DisplayStats` whenever the count is
+  non-zero.
+- **Single-instance arbitration falls back to "start anyway" when the port is
+  held by something else.** `acquireSingleInstance` (`singleinstance.go`)
+  binds `127.0.0.1:37653`; if that fails and a dial to the same address does
+  not answer as GoSentry either, startup continues rather than refusing to
+  open because of an unrelated local listener. The consequence is deliberate
+  but worth spelling out: two GoSentry processes can then run two schedulers
+  against the same `jobs.json` and the same logs directory, each overwriting
+  the other's saves. Atomic writes (`writeFileAtomic`) prevent a *torn* file
+  from a concurrent write, but not one process's save clobbering the other's.
+- **The single-instance channel is an unauthenticated localhost TCP port.**
+  Port 37653 accepts one command, `"show"`, from any local process — including
+  one running as a different user on a shared machine. This is a deliberate
+  scope choice, not an oversight: the command only raises the existing window,
+  so the impact of an unwelcome sender is a window popping up, not data
+  exposure or control. Anything with a larger blast radius on that channel
+  would need real authentication.
 
 ## Out of scope
 
-Larger or blocked work is tracked in [ROADMAP.md](ROADMAP.md) (window size
+Larger or blocked work is tracked in [ROADMAP.md](ROADMAP.md) (update check from
-persistence, History column filters, CI coverage gate).
+GitHub releases, cron-table import/export, window size persistence, History
+column filters).

docs/TESTS.md

@@ -22,6 +22,16 @@ Both scripts run:
 1. `go vet ./...` — static analysis for common errors and suspicious code patterns
 2. `go test -race ./...` — tests with race condition detection enabled
 
+The GUI tests build the Fyne desktop backend, so CGO must be enabled; on Windows
+that means the MSYS2 UCRT64 toolchain described in
+[DEVELOPMENT.md](DEVELOPMENT.md).
+
+`src/ui` dominates `go test -race ./...`'s wall time — around 229s in the
+2026-08-05 whole-project review, against under 8s for every other package
+combined. Budget iteration accordingly: a change confined to `domain`,
+`storage`, `runner`, `scheduler`, or `app` gets a fast feedback loop; a `ui`
+change does not.
+
 ### Manual test commands
 
 Run all tests:
@@ -51,6 +61,37 @@ go test -coverprofile=coverage.out ./src/runner
 go tool cover -html=coverage.out
 ```
 
+Per-package coverage understates the suite, because several packages are
+exercised from another one's tests — `domain.NewRuntime`, for instance, is
+covered by the `app` tests. Measure the engine packages together instead:
+
+```bash
+go test -coverprofile=cover.out -coverpkg=./src/domain,./src/storage,./src/runner,./src/scheduler,./src/app ./src/domain ./src/storage ./src/runner ./src/scheduler ./src/app
+```
+
+In the PowerShell environment DEVELOPMENT.md prescribes on Windows, PowerShell
+splits the comma-separated `-coverpkg` list on its own and the command fails
+with `directory not found`. Use the stop-parsing token, or quote the whole
+flag — and note that `--%` swallows the rest of the line, so the profile has to
+be read by a second command:
+
+```powershell
+go test --% -coverprofile=cover.out -coverpkg=./src/domain,./src/storage,./src/runner,./src/scheduler,./src/app ./src/domain ./src/storage ./src/runner ./src/scheduler ./src/app
+```
+
+The total is the last line of the profile summary. It is **not** any of the
+per-package lines `go test` prints: with `-coverpkg` spanning five packages,
+each of those reports only what that one package's tests reached across the
+whole set, so all five are far below the real figure.
+
+```powershell
+go tool cover -func=cover.out | Select-Object -Last 1
+```
+
+That total was 84.4% at the 2026-08-04 review and 84.1% at the 2026-08-07
+documentation audit — the number to compare against before concluding that
+coverage has slipped.
+
 ---
 
 ## Test Files Overview
@@ -74,6 +115,20 @@ Tests schedule parsing and validation.
 
 ---
 
+### src/domain/config_test.go
+
+**Package:** `domain`
+
+Tests autostart argument helpers and the jobs-list density normalization rule.
+
+| Test | Purpose |
+|------|---------|
+| `TestAutostartArguments` | Verifies `AutostartArguments` returns `--start-in-tray` when the tray is enabled and an empty string when it is off. |
+| `TestResolveStartHidden` | Verifies hidden autostart requires both the CLI flag and `KeepRunningInTray`. |
+| `TestJobListViewIsCompact` | Verifies only the exact `"compact"` value selects one-line rows: empty, differently-cased, and unrecognised values all read as detailed. |
+
+---
+
 ### src/app/service_test.go
 
 **Package:** `app`
@@ -84,7 +139,6 @@ Tests `Service` construction and the state-accessor contract.
 |------|---------|
 | `TestNewServiceBuildsRuntimePerJob` | Verifies that `NewService` creates a `JobRuntime` entry for every loaded job. |
 | `TestJobsReturnsCopy` | Verifies that `Service.Jobs` returns a defensive copy so callers cannot mutate internal state. |
-| `TestStoreReturnsWiredStore` | Verifies that `Service.Store` returns the injected `storage.Store`. |
 
 ---
 
@@ -108,19 +162,22 @@ Tests all mutating operations on the Service, scheduler integration, and setting
 | `TestDeleteJobNotFound` | Verifies that `DeleteJob` returns an error for an unknown job ID. |
 | `TestSetEnabledNotFound` | Verifies that `SetEnabled` returns an error for an unknown job ID. |
 | `TestSetEnabledToggles` | Verifies that `SetEnabled` flips the enabled flag and persists the change. |
+| `TestSetEnabledClearsPendingRuns` | Verifies that disabling a job zeroes a `PendingRuns` backlog it was carrying, so re-enabling it later does not replay a stale deferred run. |
 
 #### Global pause / run-now / run-due
 
 | Test | Purpose |
 |------|---------|
 | `TestSetGlobalPauseUpdatesRuntimesAndEmits` | Verifies that `SetGlobalPause` updates all job runtimes, emits `SchedulerStateChanged`, and persists state. |
+| `TestSetGlobalPausePersistsToConfigFile` | Verifies the paused flag reaches `gosentry.json`, which is what makes the pause survive a restart. |
+| `TestServiceRebuiltFromPausedStoreStartsPaused` | Verifies a Service built from a paused config starts paused, with the paused next-run text applied before the first tick. |
 | `TestRunNowUsesRunnerAndRecords` | Verifies that `RunNow` invokes the runner, records a `RunRecord`, and emits `RunRecorded`. |
 | `TestRunNowNotFound` | Verifies that `RunNow` returns an error for an unknown job ID. |
 | `TestRunNowRefusedWhileAlreadyRunning` | Verifies that a second concurrent `RunNow` on the same job is rejected while the first is in progress. |
 | `TestRunNowAllowedWhilePaused` | Verifies that `RunNow` is allowed when the global pause flag is set (pause stops scheduled runs only). |
 | `TestRunDueStartsDueJob` | Verifies that `RunDue` launches a job whose next-run time has passed. |
 | `TestRunDueSkipsJobNotYetDue` | Verifies that `RunDue` does not launch a job that is not yet due. |
-| `TestRunDueSkipsJobInRunningState` | Verifies that `RunDue` does not start a second concurrent run for an already-running job. |
+| `TestRunDueSkipsJobInRunningState` | Verifies that `RunDue` does not start a second concurrent run for an already-running job, even with a stale `NextDue` in the past. |
 | `TestRunDueDoesNothingWhilePaused` | Verifies that `RunDue` launches nothing when the global pause flag is set. |
 | `TestStartDrivesRunDueOnTick` | Verifies that `Service.Start` wires `RunDue` to the scheduler tick and that each tick advances state. |
 
@@ -135,6 +192,10 @@ Tests all mutating operations on the Service, scheduler integration, and setting
 | `TestUpdateSettingsAdoptsExistingJobsFile` | Verifies that selecting a jobs file that already exists replaces the job list with its contents, rebuilds runtimes, and emits `JobsLoaded`. |
 | `TestUpdateSettingsKeepsJobsWhenTheNewFileIsMissing` | Verifies that a path with no file behind it receives the current jobs instead (the rename/relocate case). |
 | `TestUpdateSettingsRefusesJobsFileSwitchWhileRunning` | Verifies that switching the jobs file is refused (and not persisted) while a job runs, while unrelated settings still save. |
+| `TestUpdateSettingsSeedsAdoptedJobsFromLogs` | Verifies that statistics reconstructed from the new logs directory still reach the runtime map, now that the log scan happens before `UpdateSettings` takes `mu`. |
+| `TestConcurrentJobOperationsLeaveTheFileMatchingMemory` | Verifies that saves prepared under `mu` and run after it is released still land in mutation order, so `jobs.json` matches the in-memory list after concurrent create/disable operations. |
+| `TestSetJobListViewPersistsToConfigFile` | Verifies the Jobs-list density preference reaches `gosentry.json`, so the chosen view reopens after a restart. |
+| `TestSetJobListViewNormalizesUnknownValue` | Verifies anything but `"compact"` is stored as `"detailed"`, so the config never gains a value no reader understands. |
 | `TestPrependLogCapsActivityList` | Verifies that the activity log never grows beyond its maximum cap. |
 
 ---
@@ -143,7 +204,8 @@ Tests all mutating operations on the Service, scheduler integration, and setting
 
 **Package:** `app`
 
-Tests overlap policy, sequential execution, run statistics, and scheduler edge cases using injected `runJob` and `primeDue`.
+Tests overlap policy, sequential execution, run statistics, timeout resolution,
+and scheduler edge cases using injected `runJob` and `primeDue`.
 
 | Test | Purpose |
 |------|---------|
@@ -152,14 +214,14 @@ Tests overlap policy, sequential execution, run statistics, and scheduler edge c
 | `TestRunDueParallelStartsAllDueJobs` | Parallel mode: both due jobs enter the runner before either completes. |
 | `TestRunDueSequentialSerializes` | Sequential mode: job 2 waits until job 1 finishes. |
 | `TestRunDueSkipDropsOverlap` | Global skip: no second concurrent run, `PendingRuns` stays 0. |
-| `TestRunDueQueueRerunsAfterFinish` | Queue: one deferred run after an in-flight finish. |
+| `TestRunDueQueueRerunsAfterFinish` | Queue: one deferred run after an in-flight finish; also covers an empty per-job policy inheriting the global default. |
 | `TestRunDueQueueDrainsMultipleOverlaps` | Queue: multiple missed ticks drain as separate runs. |
+| `TestRunDueQueueCapsPendingRuns` | Regression: `PendingRuns` stops growing at `maxPendingRuns` instead of accumulating without bound for a job that never keeps up with its schedule. |
 | `TestRunDuePerJobQueueOverridesGlobalSkip` | Per-job `queue` beats global `skip`. |
 | `TestRunDuePerJobSkipOverridesGlobalQueue` | Per-job `skip` beats global `queue`. |
-| `TestRunDueEmptyOverlapInheritsGlobal` | Empty per-job policy inherits the global default. |
 | `TestRunNowSequentialGuard` | Manual run refused while another job runs in sequential mode. |
-| `TestStartRunLockedRollbackOnSaveFailure` | Regression: run does not start when `SaveJobs` fails. |
+| `TestRunDueQueueDrainSkippedWhenPaused` | Queued overlaps are not drained while the scheduler is paused, and pausing clears the backlog rather than leaving it to fire a stale deferred run on resume. |
-| `TestRunDueQueueDrainSkippedWhenPaused` | Queued overlaps are not drained while the scheduler is paused. |
+| `TestEffectiveTimeout` | Verifies the three-state resolution: `nil` inherits the global default, a positive value overrides it, and an explicit `0` means no timeout without inheriting. |
 
 ---
 
@@ -172,7 +234,6 @@ Tests the event-emission and observer-subscription machinery.
 | Test | Purpose |
 |------|---------|
 | `TestEmitDeliversToAllObserversInOrder` | Verifies that all registered observers receive emitted events in registration order. |
-| `TestEmitWithNoObserversIsNoop` | Verifies that emitting an event with no observers does not panic. |
 | `TestObserverCanReadServiceState` | Verifies that an observer called by `emit` can safely read Service state (jobs, runtimes). |
 
 ---
@@ -187,13 +248,15 @@ Tests display-formatting helpers used by the UI.
 |------|---------|
 | `TestStatusText` | Verifies that job status codes map to the correct display strings. |
 | `TestEventText` | Verifies trigger-type labels for scheduled, manual, and UI triggers. |
-| `TestDisplayFolder` | Verifies that an empty folder string shows "No folder". |
+| `TestEventLine` | Verifies the one-line activity rendering of a `RunRecord`, including the log basename and the `Unknown` fallback for a blank trigger. |
-| `TestDisplayArguments` | Verifies that an empty arguments string shows "None". |
+| `TestDisplayFolder` | Verifies that an empty folder string shows "(No folder)". |
+| `TestDisplayArguments` | Verifies that an empty arguments string shows "(none)". |
 | `TestDisplayRunMode` | Verifies run-mode labels for normal and start-only modes. |
 | `TestDisplayInvocation` | Verifies that the full invocation display string combines command and arguments with spacing. |
 | `TestDisplayIndex` | Verifies the list position of a job index in a filtered index slice. |
 | `TestDisplayStats` | Verifies statistics line formatting for the details panel. |
 | `TestDisplayOverlapPolicy` | Verifies per-job vs inherited global overlap policy labels. |
+| `TestDisplayTimeout` | Verifies the three timeout states read differently in the details panel: `45 s`, `no timeout`, and `… (global default)`. |
 
 ---
 
@@ -201,18 +264,26 @@ Tests display-formatting helpers used by the UI.
 
 **Package:** `storage`
 
-Tests JSON round-tripping and default generation.
+Tests JSON round-tripping, default generation, and backward compatibility.
 
 | Test | Purpose |
 |------|---------|
 | `TestJobsRoundTrip` | Verifies that jobs saved to JSON are reloaded with identical field values. |
 | `TestConfigRoundTrip` | Verifies that settings saved to JSON are reloaded with identical field values. |
 | `TestNormalizeJobsFillsDefaults` | Verifies that `normalizeJobs` assigns sequential IDs and sets default name, schedule, and command for jobs missing those fields. |
-| `TestLoadOrCreateConfigCreatesDefaultsOnFirstRun` | Verifies that a missing config file is created with sane defaults and a sample job. |
+| `TestNormalizeJobsReassignsDuplicateIDs` | Verifies that a hand-edited `jobs.json` with two entries sharing one ID gets the later duplicates reassigned instead of colliding on one runtime. |
+| `TestResolveConfiguredPathCleansAbsolutePaths` | Verifies (Windows only) that forward-slash and backslash spellings of the same absolute path resolve to the same string. |
+| `TestLoadOrCreateConfigCreatesDefaultsOnFirstRun` | Verifies that a missing config file is created with sane defaults. |
+| `TestLoadOrCreateJobsSeedsSampleJobsOnFirstRun` | Verifies that a missing jobs file is created with the sample jobs from `defaultJobs`. |
+| `TestLoadOrCreateConfigKeepsZeroTimeoutOnReload` | Verifies that `default_timeout_seconds: 0` survives a reload rather than being normalized away — 0 is a value, not a missing field. |
+| `TestLoadOrCreateConfigPreservesZeroRetentionLimits` | Verifies that `max_log_files` / `max_log_age_days` of 0 read back as 0 ("keep everything") instead of being backfilled to the 100 / 30 defaults — a field the file sets is not the missing-field case. |
 | `TestLoadOrCreateConfigMigratesJobsDir` | Verifies that a pre-0.15 `jobs_dir` becomes `jobs_file` pointing at the same `jobs.json`, and that the retired key is not written back. |
+| `TestLoadOrCreateConfigMigratesLegacyThemeDefault` | Verifies that a config storing the retired `"default"` theme value is normalized to `system` on load. |
 | `TestLoadJobsFileReportsMissingWithoutCreating` | Verifies that `LoadJobsFile` reports a missing file as not-found without creating or seeding it, and normalizes the jobs it does load. |
 | `TestApplyConfigPathsDerivesJobsDir` | Verifies that the configured jobs file resolves against the program folder and that `Paths.JobsDir` is derived from it. |
+| `TestJobTimeoutRoundTripsThreeStates` | Verifies the on-disk encoding that keeps "inherit" and "no timeout" distinguishable: `nil` is omitted entirely, an explicit `0` is written and read back as set. |
 | `TestJobsJSONDoesNotPersistRuntimeNoise` | Verifies that `jobs.json` does not persist runtime state (LastRun, NextRun, etc.). Only durable job fields are stored. |
+| `TestWriteJSONReplacesFileAtomically` | Pins the durability fix: `writeJSON` replaces the destination through a temp file and a rename rather than truncating it in place, and leaves no temp file behind. |
 
 ---
 
@@ -233,7 +304,7 @@ Tests the timing-loop contract using a fake clock.
 
 **Package:** `runner`
 
-Tests command execution, exit code handling, output capture, and Windows-specific process behavior.
+Tests command execution, exit code handling, output capture, and the run timeout.
 
 #### Log file tests
 
@@ -266,21 +337,56 @@ Tests command execution, exit code handling, output capture, and Windows-specifi
 |------|---------|
 | `TestRunJobFailsOnNonZeroExitCode` | Verifies that a nonzero process exit code results in "Failed" status with an "exit code N" detail. |
 
+#### Timeout
+
+| Test | Purpose |
+|------|---------|
+| `TestRunJobTimesOut` | Verifies that a positive timeout kills a long-running command and reports `Timed out after <timeout>`. |
+| `TestRunJobZeroTimeoutMeansNoTimeout` | Verifies that a non-positive duration runs without a deadline, bounded only by the caller's context. |
+| `TestRunJobStartOnlyIgnoresTimeout` | Verifies that fire-and-forget jobs run on the untimed context, so the timeout never kills a process the runner is not waiting for. |
+
 #### Start-only mode
 
 | Test | Purpose |
 |------|---------|
 | `TestRunJobStartOnlyDoesNotWaitForExitCode` | Verifies that `StartOnly: true` jobs launch and return "OK" immediately without waiting for the process to exit. |
 | `TestRunJobStartOnlyReportsStartFailure` | Verifies that `StartOnly: true` jobs still report "Failed" if the process cannot be started. |
+| `TestRunJobStartOnlyLeavesNoContextWatcher` | Verifies that a start-only run leaves no `os/exec` context-watcher goroutine behind, since it never calls `Wait` and the started process is meant to outlive the app. |
 
-#### Utility / Windows invocation
+---
 
-| Test | Platform | Purpose |
+### src/runner/runner_windows_test.go
-|------|----------|---------|
+
-| `TestDirectCommandDoesNotHideWindow` | Windows | Verifies that direct executable commands do not request hidden-window startup. |
+**Location:** `src/runner/runner_windows_test.go`
-| `TestShellCommandHidesWindow` | Windows | Verifies that shell commands request hidden-window startup to prevent console flash. |
+**Build Tags:** `//go:build windows`
-| `TestShellCommandUsesWindowsSafeQuoting` | Windows | Verifies `cmd.exe /S /C` quoting for paths with spaces and special characters. |
+
-| `TestWindowsShellCommandLineQuotesUnquotedProgramPath` | Windows | Verifies that unquoted program paths in shell commands are quoted while preserving already-quoted arguments. |
+Tests the Windows shell invocation and hidden-window flags.
+
+| Test | Purpose |
+|------|---------|
+| `TestDirectCommandDoesNotHideWindow` | Verifies that direct executable commands do not request hidden-window startup. |
+| `TestShellCommandHidesWindow` | Verifies that shell commands request hidden-window startup to prevent console flash. |
+| `TestShellCommandUsesWindowsSafeQuoting` | Verifies `cmd.exe /S /C` quoting for paths with spaces and special characters. |
+| `TestWindowsShellCommandLineQuotesUnquotedProgramPath` | Verifies that unquoted program paths in shell commands are quoted while preserving already-quoted arguments. |
+| `TestQuoteLeadingWindowsProgramPathPicksEarliestBoundedExtension` | Regression: the program path ends at the *earliest* extension match sitting at a token boundary — not the first extension in `.exe`/`.cmd`/`.bat`/`.com` list order, and not a substring inside another word — so a `.bat` wrapper followed by an `.exe` argument still quotes only the wrapper. |
+
+---
+
+### src/runner/seed_test.go
+
+**Package:** `runner`
+
+Tests `SeedStats`, which rebuilds aggregate run statistics from the `.log` files
+on disk at startup.
+
+| Test | Purpose |
+|------|---------|
+| `TestSeedStatsBasic` | Verifies run/fail counts and the last, average, and maximum durations parsed from a job's log headers. |
+| `TestSeedStatsDurationLessLegacyLog` | Verifies a log written before the `duration` header still counts as a run but is excluded from the duration aggregates, so a missing duration cannot masquerade as a 0 ms run. |
+| `TestSeedStatsMaxFilesHonoured` | Verifies that only the newest `MaxLogFiles` logs are parsed when the limit is positive. |
+| `TestSeedStatsMissingDir` | Verifies a missing logs directory yields an empty map rather than an error or a panic. |
+| `TestSeedStatsUnknownJobProducesNoEntry` | Verifies log files that match no known job are ignored. |
+| `TestSeedStatsMatchesByJobID` | Verifies logs are matched by the `job_id` header even when two job names sanitize to the same filename. |
 
 ---
 
@@ -293,8 +399,7 @@ Tests log-file cleanup by age and by count.
 | Test | Purpose |
 |------|---------|
 | `TestCleanupLogsMissingDirReturnsNil` | Verifies that cleanup returns nil (not an error) when the logs directory does not exist. |
-| `TestCleanupLogsRemovesFilesPastMaxAge` | Verifies that `.log` files older than `MaxLogAgeDays` are deleted. |
+| `TestCleanupLogsRemovesFilesPastMaxAge` | Verifies that `.log` files older than `MaxLogAgeDays` are deleted and files within the limit are retained. |
-| `TestCleanupLogsKeepsFilesWithinAgeLimit` | Verifies that `.log` files within the age limit are retained. |
 | `TestCleanupLogsByCountDeletesOldest` | Verifies that when file count exceeds `MaxLogFiles`, the oldest files are removed first. |
 | `TestCleanupLogsNonLogFilesNotDeleted` | Verifies that non-`.log` files in the logs directory are never deleted by cleanup. |
 | `TestCleanupLogsSubdirsNotDeleted` | Verifies that subdirectories inside the logs directory are not deleted by cleanup. |
@@ -302,6 +407,19 @@ Tests log-file cleanup by age and by count.
 
 ---
 
+### src/runner/logfile_test.go
+
+**Package:** `runner`
+
+Tests the disambiguating suffix `writeRunLog` applies when two runs land on
+the same second.
+
+| Test | Purpose |
+|------|---------|
+| `TestUniqueLogPathAvoidsCollision` | Verifies repeated calls for the same file name return distinct paths instead of silently overwriting an existing log. |
+
+---
+
 ### src/platform/autostart/autostart_windows_test.go
 
 **Location:** `src/platform/autostart/autostart_windows_test.go`
@@ -311,14 +429,14 @@ Tests Windows autostart via shortcuts in the Startup folder.
 
 | Test | Purpose |
 |------|---------|
-| `TestParseRegistryRunValue` | Verifies that legacy `HKCU\...\Run` entry values are parsed correctly from `reg query` output (for migration/cleanup). |
+| `TestSameWindowsPathIgnoresCaseAndQuotes` | Verifies that Windows path comparison is case-insensitive, handles quote marks, and matches paths containing spaces. |
-| `TestSameWindowsPathIgnoresCaseAndQuotes` | Verifies that Windows path comparison is case-insensitive and handles quote marks correctly. |
-| `TestSameWindowsPathHandlesSpaces` | Verifies that Windows path comparison matches paths with and without surrounding quotes. |
 | `TestSameWindowsPathStripsExtendedLengthPrefix` | Verifies that `\\?\`-prefixed paths are compared correctly after stripping the prefix. |
 | `TestSameWindowsPathMatchesShortNameViaFilesystem` | Verifies that 8.3 short names are resolved to long names for comparison. |
 | `TestStartupShortcutPathUsesUserStartupFolder` | Verifies that the shortcut path resolves into `%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup`. |
 | `TestCreateStartupShortcutHandlesCyrillicPath` | Verifies that `.lnk` files are created correctly when the executable path contains Cyrillic characters. |
 | `TestCreateStartupShortcutHandlesSpaces` | Verifies that `.lnk` files are created with correct `TargetPath` and `--start-in-tray` arguments when the path contains spaces. |
+| `TestCreateStartupShortcutWithoutTrayFlag` | Verifies that autostart shortcuts omit `--start-in-tray` when the tray setting is off. |
+| `TestAutostartStatusRequiresMatchingTrayFlag` | Verifies `AutostartStatus` reports a problem when the shortcut arguments do not match `KeepRunningInTray`. |
 
 ---
 
@@ -332,7 +450,19 @@ Tests Linux autostart via XDG Desktop Entry files.
 | Test | Purpose |
 |------|---------|
 | `TestLinuxAutostartStartsInTray` | Verifies that the XDG Desktop Entry is created with `--start-in-tray` in the `Exec=` field. |
-| `TestLinuxAutostartRemovesLegacyDesktopEntry` | Verifies that enabling autostart also removes legacy PySentry service files left by earlier builds. |
+| `TestLinuxAutostartWithoutTrayFlag` | Verifies that the desktop entry omits `--start-in-tray` when the tray setting is off. |
+
+---
+
+### src/ui/tray_test.go
+
+**Package:** `ui`
+
+Tests startup helpers for tray and autostart interaction.
+
+| Test | Purpose |
+|------|---------|
+| `TestResolveStartHiddenUsesDomainHelper` | Verifies the UI startup helper stays aligned with `domain.ResolveStartHidden`. |
 
 ---
 
@@ -350,43 +480,6 @@ Tests Linux desktop integration (`.desktop` file and icon under XDG data home).
 
 ---
 
-### src/ui/jobs_view_test.go
-
-**Package:** `ui`
-
-Tests pure helper functions in the jobs view (no Fyne widget construction).
-
-| Test | Purpose |
-|------|---------|
-| `TestFilterValue` | Verifies that `filterValue` returns the correct display string for the current folder filter. |
-| `TestFolderOptionsAlwaysIncludesSentinels` | Verifies that the folder filter list always starts with "All" and "No folder" sentinel entries. |
-| `TestFolderOptionsAppendsUniqueFolders` | Verifies that folder names from the job list are appended once each, in order, without duplicates. |
-| `TestFilteredJobIndexesAll` | Verifies that the "All" filter returns indexes for every job. |
-| `TestFilteredJobIndexesByNamedFolder` | Verifies that filtering by a named folder returns only jobs in that folder. |
-| `TestFilteredJobIndexesNoFolder` | Verifies that the "No folder" filter returns only jobs with an empty folder field. |
-| `TestFilteredJobIndexesEmptySlice` | Verifies that filtering an empty job slice returns an empty index list. |
-| `TestLastJobLogsCapsAndCopies` | Verifies activity panel cap and defensive copy semantics. |
-| `TestLastJobLogsEmpty` | Verifies nil/empty log input returns an empty slice. |
-| `TestIndexOfID` | Verifies job lookup by ID returns `-1` when not found. |
-
----
-
-### src/ui/history_view_test.go
-
-**Package:** `ui`
-
-Tests pure History tab helpers (no Fyne widget construction).
-
-| Test | Purpose |
-|------|---------|
-| `TestCollectActivityMergesAndSorts` | Verifies per-job logs are merged and sorted by time. |
-| `TestCollectActivitySkipsMissingRuntimes` | Verifies missing runtime entries are skipped safely. |
-| `TestHistoryCellText` | Verifies table cell text for all columns; empty trigger → `Unknown`. |
-| `TestLogFileName` | Verifies log path basename extraction on Windows and Unix paths. |
-| `TestNewEventUsesConsistentTimestampShape` | Verifies UI events use the same timestamp layout as run records. |
-
----
-
 ### src/platform/filemanager/filemanager_test.go
 
 **Package:** `filemanager`
@@ -402,15 +495,121 @@ success path is not tested: it would open a real file manager window.
 
 ---
 
+### src/ui/jobs_view_test.go
+
+**Package:** `ui`
+
+Tests the Jobs tab: pure filter helpers, and — through Fyne's headless
+`test.NewApp()` — the geometry and redraw behaviour that only shows up once the
+widgets are assembled.
+
+| Test | Purpose |
+|------|---------|
+| `TestFilterValue` | Verifies that `filterValue` returns the correct display string for the current folder filter. |
+| `TestFolderOptionsAlwaysIncludesSentinels` | Verifies that the folder filter list always starts with "All" and "No folder" sentinel entries. |
+| `TestFolderOptionsAppendsUniqueFolders` | Verifies that folder names from the job list are appended once each, in order, without duplicates. |
+| `TestFilteredJobIndexes` | Table: verifies the "All" filter returns every index, a named folder returns only its own jobs, "No folder" matches empty and blank folder fields, and an empty job list yields no indexes. |
+| `TestNextJobListViewFlipsBothWays` | Verifies the density toggle alternates between detailed and compact from either starting value. |
+| `TestViewToggleTextNamesTheAction` | Verifies the toggle button is labelled with the action it performs, not the state it is in. |
+| `TestJobListViewToggleShrinksRowsAndPersists` | End-to-end: one tap shrinks the row height, relabels the button, and reaches the config; tapping back undoes all three. |
+| `TestJobListViewCompactConfigOpensCompact` | Verifies the persisted density is honoured at build time, not only after a tap. |
+| `TestJobsSidebarWidthIsItsContent` | Regression guard: nothing but the sidebar's own toolbar row imposes a width floor on it. |
+| `TestJobsSplitOpensAtTheSidebarWidth` | Verifies the derived split offset opens the divider at the sidebar's own width at the default window size — enough that the toolbar is never born clipped, and no more. |
+| `TestToolbarButtonRedrawsRowAndDetails` | Regression guard: with the duplicate refreshes removed from the handlers, `jobsView.refresh` alone must re-snapshot the jobs and repopulate the details pane. |
+| `TestJobsViewSelectionSurvivesAJobsFileSwitch` | Regression guard: adopting a different jobs file replaces the whole list from the Service, and the refresh that follows must leave the details pane and the list highlight describing the same job — not redraw the pane from a row index that belonged to the previous list. |
+| `TestDetailCaptionWidthCoversEveryCaption` | Verifies every caption `metadataRows` returns fits the measured caption column, which is what makes the single row list self-enforcing. |
+
+---
+
+### src/ui/jobs_view_state_test.go
+
+**Package:** `ui`
+
+Tests `jobsViewState`, the Jobs tab's model: the job/runtime snapshot, the
+folder filter, and the ID-based selection. No Fyne app is built — the state
+touches no widgets, so these run in milliseconds.
+
+| Test | Purpose |
+|------|---------|
+| `TestJobsViewStateSelectsTheFirstJob` | Verifies the opening state selects the first row, so the details pane is never blank when there is something to show. |
+| `TestJobsViewStateEmptyListSelectsNothing` | Verifies an empty job list leaves nothing selected and no row to highlight (`displayRow` = -1). |
+| `TestJobsViewStateSelectionFollowsTheJobNotTheRow` | Regression guard: a job removed above the selected one (through the Service, the way an external change reaches the view) must not slide the selection onto its neighbour — the selection is a job ID, and only its row moves. |
+| `TestJobsViewStateDropsSelectionWhenItsJobIsGone` | Verifies a selection whose job no longer exists falls back to the first visible row instead of describing whichever job inherited its position. |
+| `TestJobsViewStateApplyFilter` | Verifies the folder filter keeps a selection it still shows, moves it to the folder's first row when it does not, and that "No folder" matches the job without one. |
+| `TestJobsViewStateEmptyFilterSelectsNothing` | Verifies a filter matching no job is a filter choice, not an error state: nothing selected, nothing highlighted, and the selection returns when the filter is cleared. |
+| `TestJobsViewStateHiddenSelectionIsNotHighlighted` | Verifies a selected job the filter hides reports no display row rather than falling back to row 0, which would highlight an unrelated job. |
+| `TestJobsViewStateRuntimeIsNeverNil` | Verifies `runtime` returns an empty `JobRuntime` for a job the Service has none for, so callers need no nil check. |
+| `TestJobsViewStateJobAtRejectsRowsOutsideTheFilter` | Verifies row lookups are bounded by the filtered rows, which is what the list widget draws from. |
+
+---
+
+### src/ui/history_view_test.go
+
+**Package:** `ui`
+
+Tests the History tab: the pure activity helpers and the sorted-snapshot and
+column-width behaviour of the assembled table.
+
+| Test | Purpose |
+|------|---------|
+| `TestHistoryCellText` | Verifies table cell text for all columns; empty trigger → `Unknown`. |
+| `TestLogFileName` | Verifies log path basename extraction on Windows and Unix paths. |
+| `TestNewEventUsesConsistentTimestampShape` | Verifies UI events use the same timestamp layout as run records. |
+| `TestLastJobLogsCapsAndCopies` | Verifies activity panel cap and defensive copy semantics. |
+| `TestLastJobLogsEmpty` | Verifies nil/empty log input returns an empty slice. |
+| `TestIndexOfID` | Verifies job lookup by ID returns `-1` when not found. |
+| `TestHistorySortToggleKeepsRowsInSync` | Regression guard for the cached sorted snapshot: the length callback and the cells must be refilled together, or the row count and the cell contents disagree. |
+| `TestHistoryCellTemplateIsPlainText` | Verifies the cell template already carries the zero `TextStyle`, since the per-cell assignment that used to reset it is gone. |
+| `TestTextColumnWidthClamps` | Covers the three shapes of `textColumnWidth`: below the minimum, in range, and capped at the maximum. |
+| `TestHistoryColumnsFitTheirContent` | Verifies every column is at least as wide as its widest known or present value, at the default text size and at a scaled theme. |
+| `TestHistoryLogCapsRecords` | Regression guard for the unbounded History list: the log keeps the newest `maxHistoryRows` records, drops the oldest from the front, and trims a list handed in already over the cap. |
+| `TestHistoryLogWidthsMatchAFullScan` | Verifies the incremental column widths equal a full rescan while every measured record is still present — the cheaper path must not clip what the old one showed. |
+| `TestHistoryLogWidthsDoNotShrinkWhenRecordsAgeOut` | Verifies a column keeps its width after the record that set it is dropped by the cap, since the rows on screen were laid out against it. |
+| `TestHistoryLogRescansOnThemeChange` | Verifies a theme change falls back to a full rescan, the one case the incremental fold cannot handle because every stored width was measured at the old text size. |
+
+---
+
 ### src/ui/settings_view_test.go
 
 **Package:** `ui`
 
-Tests pure Settings tab helpers (no Fyne widget construction).
+Tests the Settings tab helpers and the row layout.
 
 | Test | Purpose |
 |------|---------|
 | `TestSettingsFolderPath` | Verifies the folder the Logs directory "Open" button targets: blank text yields no path, a relative path resolves against the application directory, an absolute path is used as typed. |
+| `TestSettingsRowStretchesItsControl` | Verifies the row's centre slot already stretches the control to the column width — the property that made a fixed-width wrapper around it redundant. |
+| `TestChooseFileAppliesFilter` | Verifies the deduplicated picker opens a dialog both with a nil filter (the command browser) and with a concrete one (`chooseJSONFile`). |
+| `TestSettingsCaptionsCoverEveryRow` | Verifies every caption used in a row is present in `settingsCaptions` and fits the measured caption column. |
+
+---
+
+### src/ui/layout_test.go
+
+**Package:** `ui`
+
+Tests the theme-derived sizing helpers in `layout.go`.
+
+| Test | Purpose |
+|------|---------|
+| `TestRowOverlapMatchesInnerPadding` | Pins `rowOverlap` to `-theme.InnerPadding()` under two themes, the property that lets it follow a theme instead of drifting from a hand-tuned literal. |
+| `TestCancelRowOverlapAddsBackOneInnerPadding` | Verifies that `cancelRowOverlap` adds back exactly one inner padding on the top edge only, leaving width and the row below unaffected. |
+| `TestCaptionColumnWidth` | Covers no captions, one, and several of varying length, at two text sizes. |
+
+---
+
+### src/ui/theme_test.go
+
+**Package:** `ui`
+
+Tests the branded theme and the stored theme choice.
+
+| Test | Purpose |
+|------|---------|
+| `TestGoSentryThemeBrandColors` | Verifies the brand colors land on the semantically correct `ColorName`s in both the light and dark variants. |
+| `TestGoSentryThemeDelegatesUnbrandedColors` | Verifies unbranded color names fall through to the base theme rather than rendering transparent. |
+| `TestThemeForChoice` | Verifies the GoSentry choice and the empty legacy value yield the branded primary; only the explicit system choice yields Fyne's built-in theme. |
+| `TestThemeLabelRoundTrip` | Verifies the dropdown labels round-trip and that the empty value maps to the GoSentry label rather than a blank option. |
 
 ---
 
@@ -418,11 +617,25 @@ Tests pure Settings tab helpers (no Fyne widget construction).
 
 **Package:** `ui`
 
-Smoke test for main view construction with an injected `*app.Service`.
+Tests main view construction with an injected `*app.Service`.
 
 | Test | Purpose |
 |------|---------|
-| `TestMainViewBuilds` | Verifies `newMainView` assembles tabs without panic using `fyne.io/fyne/v2/test`. |
+| `TestMainViewFitsTheDefaultWindowSize` | Verifies the assembled content's minimum fits the window size the app asks for, so Fyne never silently widens the window past it. The store's config path is deliberately long, since it was the path label that used to grow the Settings tab. |
+| `TestMainViewRecordStartupAddsHistoryRow` | Verifies the `recordStartup` closure `newMainView` returns appends the startup receipt to History and redraws the table, with the windowed and tray wordings `run.go` selects between. |
+
+---
+
+### src/ui/notify_timing_test.go
+
+**Package:** `ui`
+
+Tests the failure-notification timing diagnostics added in 1.0.2.
+
+| Test | Purpose |
+|------|---------|
+| `TestNotificationTimingFormatLine` | Verifies `notificationTiming.formatLine` renders the job name and the three millisecond deltas (`ms_after_run`, `ms_fyne_do`, `ms_send`) plus their sum (`ms_app_total`). |
+| `TestAppendNotificationTimingLogWritesHeaderAndRow` | Verifies `appendNotificationTimingLog` creates `notify-timing.tsv` with its header on first write and appends a row containing the job name. |
 
 ---
 
@@ -442,10 +655,45 @@ Smoke test for main view construction with an injected `*app.Service`.
 
 7. **Regression on serious fixes** — Any fix from an internal review with severity ≥ medium gets a targeted regression test (see `run_test.go` for examples).
 
+8. **Geometry is measured, not eyeballed** — The `ui` tests that build widgets under `test.NewApp()` assert sizes and offsets, and several re-run under a scaled theme. That is what keeps [STANDARDS.md](STANDARDS.md)'s "measure at build time, never a pixel constant" rule enforceable rather than aspirational.
+
+9. **Redundancy is measured, not read** — Before deleting a test as a duplicate, run both in isolation with `-coverprofile` and compare the profiles. Identical coverage alone is *not* grounds for deletion: several kept tests hit the same statements while asserting genuinely different properties (see the table below). Deletion requires identical coverage **and** assertions that are a subset of the survivor's.
+
+---
+
+## Look-alike tests that are kept
+
+Every pair here has an identical coverage profile, so a redundancy pass will
+flag them again. They were measured under principle 9 and kept because the
+assertions differ — not because nobody looked.
+
+| Tests | Why both stay |
+|-------|---------------|
+| `TestSetGlobalPausePersistsToConfigFile` / `TestSetGlobalPauseUpdatesRuntimesAndEmits` | The first asserts the flag reaches `gosentry.json`, which is what makes the pause survive a restart; the second asserts the in-memory runtimes and the emitted event. |
+| `TestRunDueQueueDrainsMultipleOverlaps` / `TestRunDueQueueRerunsAfterFinish` | The first drains three queued occurrences rather than one, so it is the test that would catch a drain loop that fires only once. |
+| `TestCreateStartupShortcutHandlesCyrillicPath` / `TestCreateStartupShortcutHandlesSpaces` | Non-ASCII paths and paths with spaces are different real-world failure modes for the WScript.Shell COM call. |
+| `TestRunJobLogFileAllHeaders` / `TestRunJobRecordFields` / `TestRunJobWritesLogFile` | Three different subjects: the log file's headers, the returned `RunRecord`'s fields, and the log file's name and directory. The fixtures differ too — only `TestRunJobWritesLogFile` runs the `Manual` trigger. Merging them into one `RunJob` call was measured and declined: it saves ~90 ms (the three cost 0.14 s combined; the `runner` package's seconds are `TestRunJobTimesOut` and `TestRunJobZeroTimeoutMeansNoTimeout`, which wait on purpose) and would drop the `Manual` path from the header assertions. |
+
 ---
 
 ## Remaining Test Coverage Gaps
 
-- Full GUI E2E — tab navigation, dialog flows, and native file pickers are not exercised end-to-end
+- Full GUI E2E — tab navigation, dialog flows, and native file pickers are not exercised end-to-end; the `ui` tests assemble views and measure them, but nothing drives a real window.
 - History is session-only by design — `.log` files seed aggregate stats only, not the History table (see [STANDARDS.md](STANDARDS.md))
-- `layout.go` custom layouts — optional Fyne `test.NewApp()` coverage when CGO is available in CI
+- Fyne's headless driver cannot report a maximized window, which is why window-size persistence stays frozen in [ROADMAP.md](ROADMAP.md)
+
+### Functions deliberately at 0%
+
+A coverage run over the non-UI packages reports these as uncovered. All are
+intentional; none is an oversight to be "fixed" with a test.
+
+- The real `Clock` — a fake is injected everywhere it is used.
+- `storage.OpenStore`, `storage.ResolvePaths`, `storage.PeekKeepRunningInTray`, `app.Service.Start`, `app.Open` — process entry points, exercised by running the app.
+- The autostart and desktop-icon wrappers (`app.Service.InstallDesktopIcon`, `AutostartStatus`, `ApplyAutostart`) — OS integration, driven only on a real desktop.
+- `app.Service.ShouldNotifyOnFailure` — a getter under the mutex.
+- `app.Service.Config` and `app.Service.Paths` — read only from `src/ui`, which
+  this run excludes, so they are covered by the suite but not by this profile.
+  The same applies to `storage.Store.SaveJobs`: the engine writes through
+  `PrepareSaveJobs`, and the one-shot wrapper is what `OpenStore` uses.
+- The five `isEvent` marker methods in `app/events.go` — empty bodies that exist
+  only to close the `Event` interface.

scripts/measure-windows-toast.ps1

@@ -0,0 +1,39 @@
+# Measures the latency of Fyne's Windows toast path: write a short PowerShell
+# script to %TEMP% and run it via PowerShell -ExecutionPolicy Bypass, the same
+# approach fyne.io/fyne/v2/app uses in app_windows.go SendNotification.
+param(
+    [int]$Iterations = 3
+)
+
+$template = @'
+$title = "GoSentry timing test"
+$content = "benchmark"
+$iconPath = "file:///"
+[Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime] > $null
+$template = [Windows.UI.Notifications.ToastNotificationManager]::GetTemplateContent([Windows.UI.Notifications.ToastTemplateType]::ToastImageAndText02)
+$toastXml = [xml] $template.GetXml()
+$toastXml.GetElementsByTagName("text")[0].AppendChild($toastXml.CreateTextNode($title)) > $null
+$toastXml.GetElementsByTagName("text")[1].AppendChild($toastXml.CreateTextNode($content)) > $null
+$toastXml.GetElementsByTagName("image")[0].SetAttribute("src", $iconPath) > $null
+$xml = New-Object Windows.Data.Xml.Dom.XmlDocument
+$xml.LoadXml($toastXml.OuterXml)
+$toast = [Windows.UI.Notifications.ToastNotification]::new($xml)
+[Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier("ru.mixeme.gosentry.desktop").Show($toast);
+'@
+
+Write-Host "Fyne-style Windows toast latency ($Iterations run(s), no icon path):"
+$totalMs = 0
+for ($i = 1; $i -le $Iterations; $i++) {
+    $scriptPath = Join-Path $env:TEMP ("fyne-timing-test-$i.ps1")
+    Set-Content -Path $scriptPath -Value $template -Encoding UTF8
+    $sw = [System.Diagnostics.Stopwatch]::StartNew()
+    $launch = "(Get-Content -Encoding UTF8 -Path `"$scriptPath`" -Raw) | Invoke-Expression"
+    & PowerShell -ExecutionPolicy Bypass -Command $launch | Out-Null
+    $sw.Stop()
+    $ms = [int]$sw.ElapsedMilliseconds
+    $totalMs += $ms
+    Write-Host ("  run {0}: {1} ms" -f $i, $ms)
+    Remove-Item $scriptPath -ErrorAction SilentlyContinue
+}
+$avg = [math]::Round($totalMs / [double]$Iterations)
+Write-Host ("  average: {0} ms" -f $avg)

scripts/test.bat

@@ -6,6 +6,13 @@ REM Runs go vet and go test with race detection
 REM Move to repository root
 cd /d "%~dp0\.."
 
+REM This file is UTF-8 (the ✓/✗ below). cmd.exe reads batch files in the
+REM console's active code page, which defaults to the system locale (e.g.
+REM CP866 on Russian Windows) rather than UTF-8, so without this the two
+REM symbols render as mojibake. Switching the console to UTF-8 first fixes
+REM that; >nul silences chcp's own "Active code page" confirmation line.
+chcp 65001 >nul
+
 REM Fyne uses native libraries through CGO. MSYS2 UCRT64 provides the GCC toolchain
 REM expected by the Windows build; prepending it keeps the script self-contained
 REM without permanently changing the user's system PATH.

src/app/events.go

@@ -4,9 +4,12 @@ import "gitea.mixdep.ru/mix/gosentry/src/domain"
 
 // Event is something the Service did to its state that observers may want to
 // react to. It is a sealed interface: the concrete types in this file are the
-// only implementations (enforced by the unexported isEvent marker), so a UI
+// only implementations (enforced by the unexported isEvent marker), so an
-// listener can exhaustively type-switch over them and the compiler will flag a
+// Event handed to an Observer is always one of the types declared here — a
-// new event type that a switch forgot to handle.
+// caller outside this package cannot manufacture a new one. Go's type switch
+// has no exhaustiveness check, so sealing buys that guarantee, not a
+// compile-time warning when a new event type is added and a listener forgets
+// to handle it; the listener still has to be updated by hand.
 //
 // Events replace the old single onChange callback. Instead of the scheduler
 // reaching into the GUI, the Service emits typed events and the UI subscribes —

src/app/events_test.go

@@ -33,12 +33,6 @@ func TestEmitDeliversToAllObserversInOrder(t *testing.T) {
 	}
 }
 
-func TestEmitWithNoObserversIsNoop(t *testing.T) {
-	svc := newTestService(nil)
-	// Must not panic with an empty observer list.
-	svc.emit(JobChanged{})
-}
-
 // Observers may read Service state from within OnEvent without deadlocking,
 // because emit is called outside the state lock.
 func TestObserverCanReadServiceState(t *testing.T) {

src/app/format.go

@@ -82,14 +82,29 @@ func DisplayInvocation(job domain.Job) string {
 	return job.Command + "    " + strings.ReplaceAll(strings.TrimSpace(job.Arguments), "\n", " ")
 }
 
-// DisplayStats returns a one-line execution-time summary for a job runtime.
+// DisplayStats returns a one-line execution-time summary for a job runtime,
-// Returns "No runs recorded" when no runs have been counted yet.
+// with the queued-run depth appended whenever the "queue" overlap policy has
+// deferred runs waiting (see maxPendingRuns). Returns "No runs recorded" when
+// no runs have been counted yet, still showing the queue depth if one exists.
 func DisplayStats(rt *domain.JobRuntime) string {
 	if rt == nil || rt.RunCount == 0 {
+		if rt != nil && rt.PendingRuns > 0 {
+			return "No runs recorded" + pendingRunsSuffix(rt.PendingRuns)
+		}
 		return "No runs recorded"
 	}
 	return fmt.Sprintf("%d runs, %d failed, last %d ms, avg %d ms, max %d ms",
-		rt.RunCount, rt.FailCount, rt.LastDurationMS, rt.AvgDurationMS, rt.MaxDurationMS)
+		rt.RunCount, rt.FailCount, rt.LastDurationMS, rt.AvgDurationMS, rt.MaxDurationMS) +
+		pendingRunsSuffix(rt.PendingRuns)
+}
+
+// pendingRunsSuffix formats the queued-run depth for DisplayStats, empty when
+// nothing is queued.
+func pendingRunsSuffix(pending int) string {
+	if pending <= 0 {
+		return ""
+	}
+	return fmt.Sprintf(", %d queued", pending)
 }
 
 // DisplayOverlapPolicy formats a job's effective overlap policy for the details

src/app/format_test.go

@@ -126,6 +126,17 @@ func TestDisplayStats(t *testing.T) {
 	if got := DisplayStats(rtNoFail); got != wantNoFail {
 		t.Errorf("DisplayStats no-fail = %q, want %q", got, wantNoFail)
 	}
+
+	// A "queue" overlap backlog is appended to whichever form applies, so it stays
+	// visible even before the first run has completed.
+	if got, want := DisplayStats(&domain.JobRuntime{PendingRuns: 2}), "No runs recorded, 2 queued"; got != want {
+		t.Errorf("DisplayStats pending, no runs = %q, want %q", got, want)
+	}
+	rtPending := &domain.JobRuntime{RunCount: 5, FailCount: 2, LastDurationMS: 450, AvgDurationMS: 380, MaxDurationMS: 520, PendingRuns: 3}
+	wantPending := "5 runs, 2 failed, last 450 ms, avg 380 ms, max 520 ms, 3 queued"
+	if got := DisplayStats(rtPending); got != wantPending {
+		t.Errorf("DisplayStats pending = %q, want %q", got, wantPending)
+	}
 }
 
 func TestEventLine(t *testing.T) {

src/app/operations.go

@@ -43,15 +43,23 @@ func (s *Service) CreateJob(job domain.Job) (domain.Job, error) {
 	s.parseScheduleLocked(&job)
 	record := uiRecord(job.ID, job.Name, "Created", "Job was added")
 	prependLog(runtime, record)
-	err := s.store.SaveJobs(s.jobs)
+	save := s.deferSaveLocked(s.store.PrepareSaveJobs(s.jobs))
-	if err != nil {
+	s.mu.Unlock()
-		s.jobs = s.jobs[:len(s.jobs)-1]
+
+	if err := save(); err != nil {
+		// The write is atomic, so a failure left the file holding the previous
+		// list: take the job back out so memory matches what is on disk. Another
+		// operation may have run in between, so it is removed by ID rather than by
+		// truncating the slice.
+		s.mu.Lock()
+		if index := s.indexByIDLocked(job.ID); index >= 0 {
+			s.jobs = append(s.jobs[:index], s.jobs[index+1:]...)
+		}
 		delete(s.runtimes, job.ID)
 		delete(s.schedules, job.ID)
 		s.mu.Unlock()
 		return domain.Job{}, err
 	}
-	s.mu.Unlock()
 	s.emit(RunRecorded{Record: record})
 	s.emit(JobChanged{JobID: job.ID})
 	return job, nil
@@ -87,10 +95,10 @@ func (s *Service) UpdateJob(job domain.Job) error {
 	s.refreshNextRunLocked(existing, runtime)
 	record := uiRecord(job.ID, job.Name, "Updated", "Job settings changed")
 	prependLog(runtime, record)
-	err := s.store.SaveJobs(s.jobs)
+	save := s.deferSaveLocked(s.store.PrepareSaveJobs(s.jobs))
 	s.mu.Unlock()
 
-	if err != nil {
+	if err := save(); err != nil {
 		return err
 	}
 	s.emit(RunRecorded{Record: record})
@@ -113,10 +121,10 @@ func (s *Service) DeleteJob(id int) error {
 	delete(s.runtimes, id)
 	delete(s.schedules, id)
 	record := uiRecord(id, deleted.Name, "Deleted", "Job was removed")
-	err := s.store.SaveJobs(s.jobs)
+	save := s.deferSaveLocked(s.store.PrepareSaveJobs(s.jobs))
 	s.mu.Unlock()
 
-	if err != nil {
+	if err := save(); err != nil {
 		return err
 	}
 	s.emit(RunRecorded{Record: record})
@@ -148,13 +156,17 @@ func (s *Service) SetEnabled(id int, enabled bool) error {
 		runtime.LastState = "Paused"
 		runtime.NextRun = "Paused"
 		runtime.NextDue = time.Time{}
+		// A disabled job's own occurrences stop firing, so a "queue" backlog it was
+		// carrying no longer corresponds to anything: clear it rather than replaying
+		// stale deferred runs if the job is re-enabled later.
+		runtime.PendingRuns = 0
 		record = uiRecord(id, job.Name, "Paused", "Job was disabled")
 	}
 	prependLog(runtime, record)
-	err := s.store.SaveJobs(s.jobs)
+	save := s.deferSaveLocked(s.store.PrepareSaveJobs(s.jobs))
 	s.mu.Unlock()
 
-	if err != nil {
+	if err := save(); err != nil {
 		return err
 	}
 	s.emit(RunRecorded{Record: record})
@@ -175,15 +187,19 @@ func (s *Service) SetGlobalPause(paused bool) error {
 	for index := range s.jobs {
 		job := &s.jobs[index]
 		runtime := s.runtimeForLocked(job)
+		if paused {
+			// A "queue" backlog counts occurrences missed *while paused is off*; once
+			// paused, none of those correspond to anything the user would expect
+			// replayed on resume, so drop it rather than letting a stale counter fire
+			// a deferred run for an occurrence from before the pause.
+			runtime.PendingRuns = 0
+		}
 		s.refreshNextRunFromLocked(job, runtime, now)
 	}
-	err := s.store.SaveConfig()
+	save := s.deferSaveLocked(s.store.PrepareSaveConfig())
-	if err == nil {
-		err = s.store.SaveJobs(s.jobs)
-	}
 	s.mu.Unlock()
 
-	if err != nil {
+	if err := save(); err != nil {
 		return err
 	}
 	state, detail := "Resumed", "All job execution resumed"
@@ -211,9 +227,9 @@ func (s *Service) SetJobListView(view domain.JobListView) error {
 		return nil
 	}
 	s.store.Config.JobListView = view
-	err := s.store.SaveConfig()
+	save := s.deferSaveLocked(s.store.PrepareSaveConfig())
 	s.mu.Unlock()
-	return err
+	return save()
 }
 
 // ShouldNotifyOnFailure reports whether the user has enabled desktop
@@ -243,54 +259,75 @@ func (s *Service) UpdateSettings(config domain.Config) error {
 	config.JobsFile = strings.TrimSpace(config.JobsFile)
 
 	s.mu.Lock()
-	jobsPath := storage.ResolveConfiguredPath(s.store.Paths.AppDir, config.JobsFile)
+	// AppDir is fixed for the process and only UpdateSettings itself — a UI
+	// action — can move JobsPath, so this snapshot stays valid across the reads
+	// below.
+	appDir := s.store.Paths.AppDir
+	jobsPath := storage.ResolveConfiguredPath(appDir, config.JobsFile)
 	switching := jobsPath != s.store.Paths.JobsPath
-	if switching && s.anyRunningLocked() {
+	running := s.anyRunningLocked()
-		s.mu.Unlock()
+	s.mu.Unlock()
+
+	if switching && running {
 		return errors.New("cannot change the jobs file while a job is running")
 	}
-	// Read the new file before anything is written, so a file that cannot be
+	// Read the new file, and reconstruct its jobs' statistics from the logs the
-	// parsed leaves both the config and the current jobs untouched.
+	// new config points at, before anything is written and while no lock is held:
+	// both are file I/O, and SeedStats opens every log in the directory. A file
+	// that cannot be parsed leaves both the config and the current jobs untouched.
 	var adopted []domain.Job
+	var seeds map[int]runner.SeededStats
 	if switching {
 		jobs, found, err := storage.LoadJobsFile(jobsPath)
 		if err != nil {
-			s.mu.Unlock()
 			return fmt.Errorf("read jobs file %s: %w", jobsPath, err)
 		}
 		if found {
 			adopted = jobs
+			seeds = runner.SeedStats(storage.ResolveConfiguredPath(appDir, config.LogsDir), jobs, config.MaxLogFiles)
 		}
 	}
 
-	s.store.Config = config
+	s.mu.Lock()
-	if err := s.store.SaveConfig(); err != nil {
+	// The guard above was evaluated before the reads, off the lock, so re-check
+	// it: a scheduled run may have started in the meantime, and adoption drops
+	// every runtime.
+	if switching && s.anyRunningLocked() {
 		s.mu.Unlock()
-		return err
+		return errors.New("cannot change the jobs file while a job is running")
 	}
+	s.store.Config = config
+	saveConfig := s.store.PrepareSaveConfig()
 	if adopted != nil {
 		s.adoptJobsLocked(adopted)
+		s.applySeededStatsLocked(seeds)
 	}
-	// SaveConfig re-resolved the paths from the new config, so SaveJobs writes to
+	// PrepareSaveConfig re-resolved the paths from the new config, so the jobs
-	// the (possibly new) jobs file and cleanup targets the new logs dir. Adopted
+	// write targets the (possibly new) jobs file and cleanup targets the new logs
-	// jobs are written back too, which persists the IDs and defaults that
+	// dir. Adopted jobs are written back too, which persists the IDs and defaults
-	// normalization filled in, exactly as loading them at startup would.
+	// that normalization filled in, exactly as loading them at startup would. The
-	if err := s.store.SaveJobs(s.jobs); err != nil {
+	// jobs write is skipped when the config write fails, because both writes run
-		s.mu.Unlock()
+	// in the order prepared and stop at the first error.
-		return err
+	save := s.deferSaveLocked(saveConfig, s.store.PrepareSaveJobs(s.jobs))
-	}
 	loaded := len(s.jobs)
 	logsDir := s.store.Paths.LogsDir
 	maxFiles := s.store.Config.MaxLogFiles
 	maxAge := s.store.Config.MaxLogAgeDays
 	s.mu.Unlock()
 
+	saveErr := save()
 	if adopted != nil {
 		// A broad JobChanged redraws the job list; JobsLoaded tells the user in
-		// History which file those jobs came from, since nothing was asked.
+		// History which file those jobs came from, since nothing was asked. Both
+		// are emitted even when the write failed: the adopted jobs are already the
+		// in-memory list, and a job list the user cannot see would be worse than
+		// the error they are about to be shown.
 		s.emit(JobsLoaded{Path: jobsPath, Count: loaded})
 		s.emit(JobChanged{})
 	}
+	if saveErr != nil {
+		return saveErr
+	}
 	return runner.CleanupLogs(logsDir, maxFiles, maxAge)
 }
 
@@ -466,11 +503,13 @@ func validateConfig(config domain.Config) error {
 	if strings.TrimSpace(config.LogsDir) == "" {
 		return errors.New("logs directory is required")
 	}
-	if config.MaxLogFiles <= 0 {
+	// 0 means "keep everything" (see runner.CleanupLogs); only a negative count
-		return errors.New("max log files must be a positive number")
+	// is rejected, the same three-state shape as DefaultTimeoutSeconds below.
+	if config.MaxLogFiles < 0 {
+		return errors.New("max log files must be zero (unlimited) or a positive number")
 	}
-	if config.MaxLogAgeDays <= 0 {
+	if config.MaxLogAgeDays < 0 {
-		return errors.New("max log age days must be a positive number")
+		return errors.New("max log age days must be zero (unlimited) or a positive number")
 	}
 	if config.ExecutionMode != domain.ExecutionModeParallel && config.ExecutionMode != domain.ExecutionModeSequential {
 		return errors.New("execution mode must be 'parallel' or 'sequential'")
@@ -481,10 +520,10 @@ func validateConfig(config domain.Config) error {
 	if config.DefaultTimeoutSeconds < 0 {
 		return errors.New("default timeout must not be negative (0 means no timeout)")
 	}
-	// Empty Theme is accepted and normalized to the default on load, so older
+	// Empty Theme is accepted and normalized to the branded theme on load, so
-	// configs (and hand-built ones) stay valid without an explicit theme.
+	// older configs (and hand-built ones) stay valid without an explicit theme.
-	if config.Theme != "" && config.Theme != domain.ThemeDefault && config.Theme != domain.ThemeGoSentry {
+	if config.Theme != "" && config.Theme != domain.ThemeSystem && config.Theme != domain.ThemeGoSentry {
-		return errors.New("theme must be 'default' or 'gosentry'")
+		return errors.New("theme must be 'system' or 'gosentry'")
 	}
 	return nil
 }

src/app/operations_test.go

@@ -3,8 +3,10 @@ package app
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"os"
 	"path/filepath"
+	"sync"
 	"sync/atomic"
 	"testing"
 	"time"
@@ -217,6 +219,23 @@ func TestSetEnabledToggles(t *testing.T) {
 	}
 }
 
+// TestSetEnabledClearsPendingRuns verifies that disabling a job drops any
+// "queue" overlap backlog it was carrying, so re-enabling it later does not
+// replay a deferred run for an occurrence that fired before the disable.
+func TestSetEnabledClearsPendingRuns(t *testing.T) {
+	svc := newTempService(t, []domain.Job{{ID: 1, Name: "A", Schedule: "@every 1m", Command: "echo", Enabled: true}})
+	svc.mu.Lock()
+	svc.runtimes[1].PendingRuns = 2
+	svc.mu.Unlock()
+
+	if err := svc.SetEnabled(1, false); err != nil {
+		t.Fatalf("SetEnabled false: %v", err)
+	}
+	if rt := svc.Runtime(1); rt.PendingRuns != 0 {
+		t.Errorf("PendingRuns after disable = %d, want 0", rt.PendingRuns)
+	}
+}
+
 func TestSetGlobalPauseUpdatesRuntimesAndEmits(t *testing.T) {
 	svc := newTempService(t, []domain.Job{
 		{ID: 1, Name: "On", Schedule: "@every 1m", Command: "echo", Enabled: true},
@@ -503,9 +522,9 @@ func TestUpdateSettingsPersistsAndValidates(t *testing.T) {
 	svc := newTempService(t, nil)
 
 	bad := svc.store.Config
-	bad.MaxLogFiles = 0
+	bad.MaxLogFiles = -1
 	if err := svc.UpdateSettings(bad); err == nil {
-		t.Error("expected validation error for non-positive max log files")
+		t.Error("expected validation error for negative max log files")
 	}
 
 	good := svc.store.Config
@@ -514,8 +533,21 @@ func TestUpdateSettingsPersistsAndValidates(t *testing.T) {
 	if err := svc.UpdateSettings(good); err != nil {
 		t.Fatalf("UpdateSettings: %v", err)
 	}
-	if svc.Store().Config.MaxLogAgeDays != 7 || svc.Store().Config.NotifyOnFailure {
+	if svc.store.Config.MaxLogAgeDays != 7 || svc.store.Config.NotifyOnFailure {
-		t.Errorf("config not applied: %+v", svc.Store().Config)
+		t.Errorf("config not applied: %+v", svc.store.Config)
+	}
+
+	// 0 means "keep everything" (see STANDARDS §Intentional behavior), not an
+	// invalid value, so it must be accepted and persisted rather than rejected
+	// or silently backfilled.
+	unlimited := svc.store.Config
+	unlimited.MaxLogFiles = 0
+	unlimited.MaxLogAgeDays = 0
+	if err := svc.UpdateSettings(unlimited); err != nil {
+		t.Fatalf("UpdateSettings with zero retention limits: %v", err)
+	}
+	if svc.store.Config.MaxLogFiles != 0 || svc.store.Config.MaxLogAgeDays != 0 {
+		t.Errorf("zero retention limits not preserved: %+v", svc.store.Config)
 	}
 }
 
@@ -530,8 +562,8 @@ func TestUpdateSettingsRejectsInvalidConfigs(t *testing.T) {
 		{"missing jobs file", func(c *domain.Config) { c.JobsFile = "  " }},
 		{"jobs file without a file name", func(c *domain.Config) { c.JobsFile = "jobs" + string(filepath.Separator) }},
 		{"missing logs dir", func(c *domain.Config) { c.LogsDir = "" }},
-		{"non-positive max files", func(c *domain.Config) { c.MaxLogFiles = 0 }},
+		{"negative max files", func(c *domain.Config) { c.MaxLogFiles = -1 }},
-		{"non-positive max age", func(c *domain.Config) { c.MaxLogAgeDays = -1 }},
+		{"negative max age", func(c *domain.Config) { c.MaxLogAgeDays = -1 }},
 		{"negative default timeout", func(c *domain.Config) { c.DefaultTimeoutSeconds = -1 }},
 	}
 	for _, tc := range tests {
@@ -693,12 +725,12 @@ func TestUpdateSettingsRefusesJobsFileSwitchWhileRunning(t *testing.T) {
 	if err := svc.UpdateSettings(config); err == nil {
 		t.Error("expected the jobs-file switch to be refused while a job is running")
 	}
-	if svc.Store().Config.JobsFile == config.JobsFile {
+	if svc.store.Config.JobsFile == config.JobsFile {
 		t.Error("the refused switch must not have been persisted")
 	}
 
 	// A setting that does not touch the jobs file still saves during a run.
-	unrelated := svc.Store().Config
+	unrelated := svc.store.Config
 	unrelated.NotifyOnFailure = !unrelated.NotifyOnFailure
 	if err := svc.UpdateSettings(unrelated); err != nil {
 		t.Errorf("unrelated setting should still save during a run: %v", err)
@@ -708,6 +740,102 @@ func TestUpdateSettingsRefusesJobsFileSwitchWhileRunning(t *testing.T) {
 	waitRecord(t, done)
 }
 
+// Adoption reconstructs the adopted jobs' aggregate statistics from the log
+// files the new configuration points at. That scan opens every log in the
+// directory, so UpdateSettings runs it before taking the state lock; this pins
+// that its result still reaches the runtime map.
+func TestUpdateSettingsSeedsAdoptedJobsFromLogs(t *testing.T) {
+	svc := newTempService(t, []domain.Job{{ID: 1, Name: "Local", Schedule: "@every 1m", Command: "echo local", Enabled: true}})
+
+	logsDir := svc.store.Paths.LogsDir
+	if err := os.MkdirAll(logsDir, 0o755); err != nil {
+		t.Fatal(err)
+	}
+	log := "time: 2026-08-05 10:00:00\njob_id: 7\njob_name: Adopted\ntrigger: Schedule\nstate: Failed\ndetail: boom\nduration: 1500\n\nstdout:\n<empty>\n"
+	if err := os.WriteFile(filepath.Join(logsDir, "20260805-100000_Adopted.log"), []byte(log), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	shared := filepath.Join(svc.store.Paths.AppDir, "shared.json")
+	data, err := json.Marshal(domain.JobsFile{Jobs: []domain.Job{
+		{ID: 7, Name: "Adopted", Schedule: "@every 5m", Command: "echo adopted", Enabled: true},
+	}})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(shared, data, 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	config := svc.store.Config
+	config.JobsFile = shared
+	if err := svc.UpdateSettings(config); err != nil {
+		t.Fatalf("UpdateSettings: %v", err)
+	}
+
+	runtime := svc.Runtime(7)
+	if runtime == nil {
+		t.Fatal("the adopted job has no runtime")
+	}
+	if runtime.RunCount != 1 || runtime.FailCount != 1 || runtime.LastDurationMS != 1500 {
+		t.Errorf("seeded stats: RunCount=%d FailCount=%d LastDurationMS=%d, want 1/1/1500",
+			runtime.RunCount, runtime.FailCount, runtime.LastDurationMS)
+	}
+}
+
+// Job saves run after mu is released, so one operation can be writing while
+// another mutates state. deferSaveLocked takes its own lock while mu is still
+// held, which is what keeps writes in mutation order: whatever changed the list
+// last also wrote it last, so the file ends up matching memory instead of
+// holding an older snapshot.
+func TestConcurrentJobOperationsLeaveTheFileMatchingMemory(t *testing.T) {
+	svc := newTempService(t, nil)
+
+	const workers = 8
+	var wg sync.WaitGroup
+	for i := 0; i < workers; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			job, err := svc.CreateJob(domain.Job{Name: fmt.Sprintf("Job %d", i), Schedule: "@every 1m", Command: "echo hi", Enabled: true})
+			if err != nil {
+				t.Errorf("CreateJob %d: %v", i, err)
+				return
+			}
+			if err := svc.SetEnabled(job.ID, false); err != nil {
+				t.Errorf("SetEnabled %d: %v", job.ID, err)
+			}
+		}(i)
+	}
+	wg.Wait()
+
+	memory := svc.Jobs()
+	if len(memory) != workers {
+		t.Fatalf("jobs in memory = %d, want %d", len(memory), workers)
+	}
+	saved, found, err := storage.LoadJobsFile(svc.store.Paths.JobsPath)
+	if err != nil || !found {
+		t.Fatalf("read jobs file: found=%v err=%v", found, err)
+	}
+	if len(saved) != len(memory) {
+		t.Fatalf("jobs on disk = %d, want %d: the last write must be the last mutation", len(saved), len(memory))
+	}
+	onDisk := make(map[int]domain.Job, len(saved))
+	for _, job := range saved {
+		onDisk[job.ID] = job
+	}
+	for _, job := range memory {
+		got, ok := onDisk[job.ID]
+		if !ok {
+			t.Errorf("job %d (%q) is in memory but missing from the file", job.ID, job.Name)
+			continue
+		}
+		if got.Name != job.Name || got.Enabled != job.Enabled {
+			t.Errorf("job %d on disk = %q/%v, want %q/%v", job.ID, got.Name, got.Enabled, job.Name, job.Enabled)
+		}
+	}
+}
+
 func TestPrependLogCapsActivityList(t *testing.T) {
 	runtime := &domain.JobRuntime{}
 	for i := 0; i < maxJobLogs+10; i++ {

src/app/platform.go

@@ -1,39 +1,48 @@
 package app
 
 import (
+	"fmt"
+
 	"gitea.mixdep.ru/mix/gosentry/src/platform/desktop"
 )
 
 // InstallDesktopIcon installs the application's .desktop file and icon on
 // Linux (no-op on other platforms). The resulting icon path is stored in
-// store.Paths.DesktopIcon so ApplyAutostart can reference it.
+// store.Paths.DesktopIcon so ApplyAutostart can reference it. A failure is
+// reported through ErrorOccurred rather than discarded, so the visible symptom
+// (a generic dock icon) has an explanation in History instead of none.
 func (s *Service) InstallDesktopIcon(appID string, iconBytes []byte) {
-	if iconPath, err := desktop.InstallDesktopIntegration(appID, s.store.Paths.ExecutablePath, iconBytes); err == nil {
+	iconPath, err := desktop.InstallDesktopIntegration(appID, s.store.Paths.ExecutablePath, iconBytes)
-		s.mu.Lock()
+	if err != nil {
-		s.store.Paths.DesktopIcon = iconPath
+		s.emit(ErrorOccurred{Err: fmt.Errorf("install desktop icon: %w", err)})
-		s.mu.Unlock()
+		return
 	}
+	s.mu.Lock()
+	s.store.Paths.DesktopIcon = iconPath
+	s.mu.Unlock()
 }
 
 // AutostartStatus reports whether the platform autostart entry matches the
-// current StartOnLogin setting in the stored config.
+// current StartOnLogin and KeepRunningInTray settings in the stored config.
 func (s *Service) AutostartStatus() (ok bool, message string) {
 	s.mu.Lock()
 	enabled := s.store.Config.StartOnLogin
+	startInTray := s.store.Config.KeepRunningInTray
 	execPath := s.store.Paths.ExecutablePath
 	manager := s.manager
 	s.mu.Unlock()
 	if manager == nil {
 		return false, "autostart not available"
 	}
-	return manager.Status(enabled, execPath)
+	return manager.Status(enabled, startInTray, execPath)
 }
 
 // ApplyAutostart writes or removes the platform autostart entry to match the
-// current StartOnLogin setting in the stored config. Call after UpdateSettings.
+// current StartOnLogin and KeepRunningInTray settings. Call after UpdateSettings.
 func (s *Service) ApplyAutostart() error {
 	s.mu.Lock()
 	enabled := s.store.Config.StartOnLogin
+	startInTray := s.store.Config.KeepRunningInTray
 	execPath := s.store.Paths.ExecutablePath
 	iconPath := s.store.Paths.DesktopIcon
 	manager := s.manager
@@ -41,5 +50,5 @@ func (s *Service) ApplyAutostart() error {
 	if manager == nil {
 		return nil
 	}
-	return manager.Set(enabled, execPath, iconPath)
+	return manager.Set(enabled, startInTray, execPath, iconPath)
 }

src/app/run.go

@@ -11,6 +11,13 @@ import (
 	"gitea.mixdep.ru/mix/gosentry/src/runner"
 )
 
+// maxPendingRuns bounds how many missed occurrences the "queue" overlap policy
+// will defer for one job. Without a ceiling a job whose runs take longer than
+// its interval would queue one more occurrence on every tick forever, so once
+// the cap is reached further overlaps are dropped exactly as the "skip" policy
+// would drop them, until the backlog drains below the cap again.
+const maxPendingRuns = 10
+
 // RunNow starts a manual run of a job. Global pause stops only the scheduler's
 // automatic runs (see RunDue), so a manual "Run now" is allowed even while
 // paused — it is the user's explicit, one-off action. It will not start a job
@@ -36,14 +43,12 @@ func (s *Service) RunNow(id int) error {
 		s.mu.Unlock()
 		return errors.New("another job is already running (sequential mode)")
 	}
-	err := s.startRunLocked(job, runtime, "Manual", time.Now())
+	s.startRunLocked(job, runtime, "Manual", time.Now())
 	s.mu.Unlock()
 
-	if err == nil {
+	// Reflect the "Running" transition; the run's completion emits again later.
-		// Reflect the "Running" transition; the run's completion emits again later.
+	s.emit(JobChanged{JobID: id})
-		s.emit(JobChanged{JobID: id})
+	return nil
-	}
-	return err
 }
 
 // RunDue is the scheduler's per-tick entry point: it starts whatever is due at
@@ -63,7 +68,6 @@ func (s *Service) RunNow(id int) error {
 func (s *Service) RunDue(now time.Time) {
 	s.mu.Lock()
 	var started []int
-	var startErr error
 	if !s.paused {
 		sequential := s.store.Config.ExecutionMode == domain.ExecutionModeSequential
 		running := s.anyRunningLocked()
@@ -77,7 +81,7 @@ func (s *Service) RunDue(now time.Time) {
 				// The job came due again while its own run is still in flight.
 				// Apply the effective overlap policy and step past this
 				// occurrence.
-				if s.effectiveOverlapPolicy(job) == domain.OverlapPolicyQueue {
+				if s.effectiveOverlapPolicy(job) == domain.OverlapPolicyQueue && runtime.PendingRuns < maxPendingRuns {
 					runtime.PendingRuns++
 				}
 				s.advanceNextDueLocked(job, runtime, now)
@@ -88,19 +92,13 @@ func (s *Service) RunDue(now time.Time) {
 				// tick once the in-flight run has finished.
 				continue
 			}
-			if err := s.startRunLocked(job, runtime, "Schedule", now); err != nil {
+			s.startRunLocked(job, runtime, "Schedule", now)
-				startErr = err
-				continue
-			}
 			started = append(started, job.ID)
 			running = true
 		}
 	}
 	s.mu.Unlock()
 
-	if startErr != nil {
-		s.emit(ErrorOccurred{Err: fmt.Errorf("save jobs before scheduled run: %w", startErr)})
-	}
 	for _, id := range started {
 		s.emit(JobChanged{JobID: id})
 	}
@@ -116,29 +114,19 @@ type runEnv struct {
 }
 
 // startRunLocked transitions a job to "Running", advances its NextDue to the next
-// scheduled occurrence, persists that, and launches the run on a background
+// scheduled occurrence, and launches the run on a background goroutine. Neither
-// goroutine. Advancing (rather than zeroing) NextDue keeps the schedule marching
+// step touches a durable field — both live on JobRuntime, which is never
-// while the run is in flight, which is what lets RunDue notice a fresh occurrence
+// persisted — so there is nothing to save here. Advancing (rather than zeroing)
-// firing during a long run and apply the overlap policy. The caller must hold mu.
+// NextDue keeps the schedule marching while the run is in flight, which is what
-// now is the reference time for next-due advancement and the running placeholder.
+// lets RunDue notice a fresh occurrence firing during a long run and apply the
-func (s *Service) startRunLocked(job *domain.Job, runtime *domain.JobRuntime, trigger string, now time.Time) error {
+// overlap policy. The caller must hold mu. now is the reference time for
+// next-due advancement and the running placeholder.
+func (s *Service) startRunLocked(job *domain.Job, runtime *domain.JobRuntime, trigger string, now time.Time) {
 	jobCopy := *job
-	prevState := runtime.LastState
-	prevNextRun := runtime.NextRun
-	prevOutput := runtime.Output
-	prevNextDue := runtime.NextDue
-
 	runtime.LastState = "Running"
 	runtime.NextRun = "Running"
 	runtime.Output = runningOutput(jobCopy, trigger, now)
 	s.advanceNextDueLocked(job, runtime, now)
-	if err := s.store.SaveJobs(s.jobs); err != nil {
-		runtime.LastState = prevState
-		runtime.NextRun = prevNextRun
-		runtime.Output = prevOutput
-		runtime.NextDue = prevNextDue
-		return err
-	}
 	env := runEnv{
 		logsDir:  s.store.Paths.LogsDir,
 		maxFiles: s.store.Config.MaxLogFiles,
@@ -148,7 +136,6 @@ func (s *Service) startRunLocked(job *domain.Job, runtime *domain.JobRuntime, tr
 	// Capture ctx under the lock so a concurrent Start/Stop cannot swap it out
 	// from under the goroutine after we release mu.
 	go s.executeRun(s.ctx, jobCopy, trigger, env)
-	return nil
 }
 
 // executeRun runs the job off the lock, then records the result back through the
@@ -160,7 +147,6 @@ func (s *Service) executeRun(ctx context.Context, jobCopy domain.Job, trigger st
 	record, logErr := s.runJob(ctx, &jobCopy, trigger, env.logsDir, env.timeout)
 
 	s.mu.Lock()
-	var cleanupErr, saveErr error
 	var rerunStarted bool
 	if current := s.findByIDLocked(jobCopy.ID); current != nil {
 		runtime := s.runtimeForLocked(current)
@@ -174,25 +160,26 @@ func (s *Service) executeRun(ctx context.Context, jobCopy domain.Job, trigger st
 			runtime.PendingRuns--
 			// A scheduled occurrence fired while this run was active under the
 			// "queue" policy; start one deferred run now.
-			saveErr = s.startRunLocked(current, runtime, "Schedule", time.Now())
+			s.startRunLocked(current, runtime, "Schedule", time.Now())
-			rerunStarted = saveErr == nil
+			rerunStarted = true
 		} else {
 			s.refreshNextRunLocked(current, runtime)
-			saveErr = s.store.SaveJobs(s.jobs)
 		}
-		cleanupErr = runner.CleanupLogs(env.logsDir, env.maxFiles, env.maxAge)
 	}
 	s.mu.Unlock()
 
+	// Cleanup is a directory scan plus up to MaxLogFiles unlinks. It needs only
+	// the values already snapshotted into runEnv, so it runs after mu is released
+	// rather than making every UI refresh wait behind it. It runs even when the
+	// job is gone, because the run still wrote a log file that retention covers.
+	cleanupErr := runner.CleanupLogs(env.logsDir, env.maxFiles, env.maxAge)
+
 	if logErr != nil {
 		s.emit(ErrorOccurred{Err: fmt.Errorf("write run log for %q: %w", jobCopy.Name, logErr)})
 	}
 	if cleanupErr != nil {
 		s.emit(ErrorOccurred{Err: fmt.Errorf("log cleanup after run %q: %w", jobCopy.Name, cleanupErr)})
 	}
-	if saveErr != nil {
-		s.emit(ErrorOccurred{Err: fmt.Errorf("save jobs after run %q: %w", jobCopy.Name, saveErr)})
-	}
 	s.emit(RunRecorded{Record: record})
 	if !rerunStarted {
 		s.emit(JobChanged{JobID: jobCopy.ID})
@@ -266,7 +253,8 @@ func updateStats(rt *domain.JobRuntime, r domain.RunRecord) {
 		rt.MaxDurationMS = r.DurationMS
 	}
 	rt.TimedRunCount++
-	rt.AvgDurationMS = (rt.AvgDurationMS*int64(rt.TimedRunCount-1) + r.DurationMS) / int64(rt.TimedRunCount)
+	rt.DurationSumMS += r.DurationMS
+	rt.AvgDurationMS = rt.DurationSumMS / int64(rt.TimedRunCount)
 }
 
 // runningOutput is the placeholder output shown while a job is running, before

src/app/run_test.go

@@ -2,7 +2,6 @@ package app
 
 import (
 	"context"
-	"os"
 	"sync/atomic"
 	"testing"
 	"time"
@@ -104,6 +103,15 @@ func TestUpdateStats(t *testing.T) {
 	if rt.AvgDurationMS != 233 {
 		t.Errorf("after run 3: avg=%d, want 233", rt.AvgDurationMS)
 	}
+	// AvgDurationMS must always be exactly DurationSumMS/TimedRunCount — a stored
+	// sum divided once, not an incremental mean that truncates on every step and
+	// compounds error over a long-running job.
+	if rt.DurationSumMS != 700 {
+		t.Errorf("DurationSumMS = %d, want 700", rt.DurationSumMS)
+	}
+	if want := rt.DurationSumMS / int64(rt.TimedRunCount); rt.AvgDurationMS != want {
+		t.Errorf("AvgDurationMS = %d, want DurationSumMS/TimedRunCount = %d", rt.AvgDurationMS, want)
+	}
 }
 
 func TestUpdateStatsSkipsZeroDuration(t *testing.T) {
@@ -255,6 +263,10 @@ func TestRunDueQueueRerunsAfterFinish(t *testing.T) {
 	svc := newQueueService(t, domain.ExecutionModeParallel, domain.OverlapPolicyQueue, []domain.Job{
 		{ID: 1, Name: "A", Schedule: "@every 1h", Command: "echo", Enabled: true},
 	})
+	// Empty per-job OverlapPolicy inherits the global queue policy.
+	if svc.jobs[0].OverlapPolicy != "" {
+		t.Fatalf("test setup: job OverlapPolicy = %q, want empty (inherit)", svc.jobs[0].OverlapPolicy)
+	}
 
 	entered := make(chan int, 2)
 	release := make(chan struct{})
@@ -355,6 +367,42 @@ func TestRunDueQueueDrainsMultipleOverlaps(t *testing.T) {
 	}
 }
 
+// TestRunDueQueueCapsPendingRuns verifies that a job whose runs never keep up
+// with its schedule stops accumulating PendingRuns at maxPendingRuns instead of
+// growing without bound.
+func TestRunDueQueueCapsPendingRuns(t *testing.T) {
+	svc := newQueueService(t, domain.ExecutionModeParallel, domain.OverlapPolicyQueue, []domain.Job{
+		{ID: 1, Name: "A", Schedule: "@every 1h", Command: "echo", Enabled: true},
+	})
+
+	release := make(chan struct{})
+	svc.runJob = func(_ context.Context, job *domain.Job, _ string, _ string, _ time.Duration) (domain.RunRecord, error) {
+		<-release
+		return domain.RunRecord{Time: "t", JobID: job.ID, JobName: job.Name, State: "Success"}, nil
+	}
+	done := completions(svc)
+	t.Cleanup(func() {
+		close(release)
+		waitRecord(t, done)
+	})
+
+	primeDue(t, svc, 1)
+	svc.RunDue(time.Now())
+
+	// Far more due ticks than the cap while the first run stays in flight.
+	for range maxPendingRuns + 5 {
+		primeDue(t, svc, 1)
+		svc.RunDue(time.Now())
+	}
+
+	svc.mu.Lock()
+	pending := svc.runtimes[1].PendingRuns
+	svc.mu.Unlock()
+	if pending != maxPendingRuns {
+		t.Fatalf("PendingRuns = %d, want capped at %d", pending, maxPendingRuns)
+	}
+}
+
 // TestRunDuePerJobQueueOverridesGlobalSkip verifies that a job carrying its own
 // "queue" policy queues a re-run even though the global default is "skip": the
 // effective policy is resolved per job, so the job-level value wins.
@@ -451,51 +499,6 @@ func TestRunDuePerJobSkipOverridesGlobalQueue(t *testing.T) {
 	}
 }
 
-// TestRunDueEmptyOverlapInheritsGlobal verifies that a job with no own policy
-// inherits the global default: with global "queue" and an empty Job.OverlapPolicy
-// the job queues a re-run.
-func TestRunDueEmptyOverlapInheritsGlobal(t *testing.T) {
-	svc := newQueueService(t, domain.ExecutionModeParallel, domain.OverlapPolicyQueue, []domain.Job{
-		{ID: 1, Name: "A", Schedule: "@every 1h", Command: "echo", Enabled: true},
-	})
-	if svc.jobs[0].OverlapPolicy != "" {
-		t.Fatalf("test setup: job OverlapPolicy = %q, want empty (inherit)", svc.jobs[0].OverlapPolicy)
-	}
-
-	entered := make(chan int, 2)
-	release := make(chan struct{})
-	svc.runJob = func(_ context.Context, job *domain.Job, _ string, _ string, _ time.Duration) (domain.RunRecord, error) {
-		entered <- job.ID
-		<-release
-		return domain.RunRecord{Time: "t", JobID: job.ID, JobName: job.Name, State: "Success"}, nil
-	}
-	done := completions(svc)
-
-	primeDue(t, svc, 1)
-	svc.RunDue(time.Now())
-	if id := <-entered; id != 1 {
-		t.Fatalf("started job = %d, want 1", id)
-	}
-
-	primeDue(t, svc, 1)
-	svc.RunDue(time.Now())
-	expectNoEntry(t, entered)
-
-	svc.mu.Lock()
-	pending := svc.runtimes[1].PendingRuns
-	svc.mu.Unlock()
-	if pending != 1 {
-		t.Fatalf("empty per-job policy must inherit global queue, PendingRuns = %d", pending)
-	}
-
-	close(release)
-	waitRecord(t, done)
-	if id := <-entered; id != 1 {
-		t.Fatalf("inherited-queue re-run job = %d, want 1", id)
-	}
-	waitRecord(t, done)
-}
-
 // TestRunNowSequentialGuard verifies the sequential-mode guard in RunNow: a manual
 // run is refused while another job is running, and allowed once nothing is.
 func TestRunNowSequentialGuard(t *testing.T) {
@@ -534,37 +537,9 @@ func TestRunNowSequentialGuard(t *testing.T) {
 	waitRecord(t, done)
 }
 
-// TestStartRunLockedRollbackOnSaveFailure is a regression test for CODE_REVIEW
-// finding #2: a run must not start when persisting the Running state fails.
-func TestStartRunLockedRollbackOnSaveFailure(t *testing.T) {
-	svc := newTempService(t, []domain.Job{{ID: 1, Name: "A", Schedule: "@every 1h", Command: "echo", Enabled: true}})
-	if err := svc.store.SaveJobs(svc.jobs); err != nil {
-		t.Fatalf("seed jobs.json: %v", err)
-	}
-	if err := os.Chmod(svc.store.Paths.JobsPath, 0o444); err != nil {
-		t.Fatalf("chmod jobs.json: %v", err)
-	}
-	t.Cleanup(func() { _ = os.Chmod(svc.store.Paths.JobsPath, 0o644) })
-
-	var started int32
-	svc.runJob = func(_ context.Context, job *domain.Job, _ string, _ string, _ time.Duration) (domain.RunRecord, error) {
-		atomic.AddInt32(&started, 1)
-		return domain.RunRecord{Time: "t", JobID: job.ID, JobName: job.Name, State: "OK"}, nil
-	}
-
-	if err := svc.RunNow(1); err == nil {
-		t.Fatal("expected RunNow to fail when jobs.json is not writable")
-	}
-	if atomic.LoadInt32(&started) != 0 {
-		t.Error("run goroutine must not start when SaveJobs fails")
-	}
-	if rt := svc.Runtime(1); rt == nil || rt.LastState == "Running" {
-		t.Errorf("runtime should roll back from Running, got %+v", rt)
-	}
-}
-
 // TestRunDueQueueDrainSkippedWhenPaused verifies that queued overlap runs are not
-// drained while the scheduler is globally paused.
+// drained while the scheduler is globally paused, and that pausing clears the
+// backlog rather than leaving it to fire a stale deferred run on resume.
 func TestRunDueQueueDrainSkippedWhenPaused(t *testing.T) {
 	svc := newQueueService(t, domain.ExecutionModeParallel, domain.OverlapPolicyQueue, []domain.Job{
 		{ID: 1, Name: "A", Schedule: "@every 1h", Command: "echo", Enabled: true},
@@ -602,6 +577,13 @@ func TestRunDueQueueDrainSkippedWhenPaused(t *testing.T) {
 		t.Fatalf("SetGlobalPause: %v", err)
 	}
 
+	svc.mu.Lock()
+	pending = svc.runtimes[1].PendingRuns
+	svc.mu.Unlock()
+	if pending != 0 {
+		t.Errorf("pausing must clear a queued backlog, PendingRuns = %d, want 0", pending)
+	}
+
 	close(release)
 	waitRecord(t, done)
 	expectNoEntry(t, entered)
@@ -609,8 +591,8 @@ func TestRunDueQueueDrainSkippedWhenPaused(t *testing.T) {
 	svc.mu.Lock()
 	pending = svc.runtimes[1].PendingRuns
 	svc.mu.Unlock()
-	if pending != 1 {
+	if pending != 0 {
-		t.Errorf("paused scheduler must not drain queue, PendingRuns = %d, want 1", pending)
+		t.Errorf("paused scheduler must not drain queue, PendingRuns = %d, want 0", pending)
 	}
 	if got := atomic.LoadInt32(&calls); got != 1 {
 		t.Errorf("runner called %d time(s), want 1", got)

src/app/service.go

@@ -26,7 +26,10 @@ import (
 // it; unexported helpers ending in "Locked" assume the caller already holds it.
 // The Service must never call back into the UI (or any code that might re-enter
 // the Service) while holding mu — in particular emit() is always called after
-// mu is released.
+// mu is released. Blocking file I/O follows the same rule: mu is the lock the
+// Fyne main thread takes on every Jobs() and Runtime() call, so a JSON write, a
+// log-directory scan, or a pass over every log header must not happen inside it
+// (see deferSaveLocked, executeRun, and applySeededStatsLocked).
 type Service struct {
 	mu       sync.Mutex
 	store    *storage.Store
@@ -56,6 +59,13 @@ type Service struct {
 	// do not exercise autostart; Open() wires it via autostart.New().
 	manager autostart.Manager
 
+	// saveMu serializes the store writes that operations prepare under mu and run
+	// after releasing it. It is taken while mu is still held and released once the
+	// write is done, so writes reach the file in the same order their snapshots
+	// were taken and an older snapshot can never land on top of a newer one.
+	// Nothing may take mu while holding saveMu.
+	saveMu sync.Mutex
+
 	// observers and their guard live in events.go. dispatchMu is separate from mu
 	// so that emitting an event never requires (or is held under) the state lock:
 	// the Service must release mu before dispatching, per the locking contract.
@@ -63,6 +73,26 @@ type Service struct {
 	observers  []Observer
 }
 
+// deferSaveLocked prepares the store writes for the caller to run after mu is
+// released, and takes saveMu now so a later operation's write cannot overtake
+// this one. The caller must hold mu, must unlock it before calling the returned
+// function, and must call that function exactly once. Keeping the marshal, the
+// fsync, and the rename out of the critical section is what stops a settings
+// change or a job edit from blocking a scheduler tick or a finishing run. The
+// writes run in the order given and stop at the first error.
+func (s *Service) deferSaveLocked(writes ...func() error) func() error {
+	s.saveMu.Lock()
+	return func() error {
+		defer s.saveMu.Unlock()
+		for _, write := range writes {
+			if err := write(); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+}
+
 // NewService wires the Service to a loaded store and its jobs. It builds the
 // initial runtime map from the durable jobs so every job has transient state
 // from the moment the Service exists, and parses each job's schedule once. The
@@ -77,18 +107,19 @@ func NewService(store *storage.Store, jobs []domain.Job) *Service {
 	// No lock is needed here: construction is single-threaded, before Start
 	// launches the timing loop.
 	s.adoptJobsLocked(jobs)
+	s.applySeededStatsLocked(runner.SeedStats(store.Paths.LogsDir, s.jobs, store.Config.MaxLogFiles))
 	return s
 }
 
 // adoptJobsLocked makes jobs the Service's durable state and rebuilds everything
-// derived from it: the runtime map, the parsed-schedule cache, each job's first
+// derived from it: the runtime map, the parsed-schedule cache, and each job's
-// next-run — so the Service is ready to schedule the moment it exists, mirroring
+// first next-run — so the Service is ready to schedule the moment it exists,
-// the old scheduler's reset-on-construction — and the statistics seeded from
+// mirroring the old scheduler's reset-on-construction.
-// existing log files, so the details panel shows accumulated run history
-// immediately rather than only runs since this process started.
 //
 // It backs both construction and a Settings change that points at a different
-// jobs file. The caller must hold mu.
+// jobs file. Statistics seeded from existing log files are applied separately by
+// applySeededStatsLocked, because reconstructing them is file I/O. The caller
+// must hold mu.
 func (s *Service) adoptJobsLocked(jobs []domain.Job) {
 	s.jobs = jobs
 	s.runtimes = domain.NewRuntimes(jobs)
@@ -100,7 +131,16 @@ func (s *Service) adoptJobsLocked(jobs []domain.Job) {
 		s.parseScheduleLocked(job)
 		s.refreshNextRunFromLocked(job, s.runtimes[job.ID], now)
 	}
-	for id, seed := range runner.SeedStats(s.store.Paths.LogsDir, s.jobs, s.store.Config.MaxLogFiles) {
+}
+
+// applySeededStatsLocked folds statistics reconstructed from existing log files
+// into the runtime map, so the details panel shows accumulated run history
+// immediately rather than only runs since this process started. It is separate
+// from adoptJobsLocked because producing the seeds opens every log file in the
+// directory, which must not happen under mu: callers compute the map first and
+// apply it here. The caller must hold mu.
+func (s *Service) applySeededStatsLocked(seeds map[int]runner.SeededStats) {
+	for id, seed := range seeds {
 		runtime := s.runtimes[id]
 		if runtime == nil {
 			continue
@@ -111,6 +151,7 @@ func (s *Service) adoptJobsLocked(jobs []domain.Job) {
 		runtime.AvgDurationMS = seed.AvgDurationMS
 		runtime.MaxDurationMS = seed.MaxDurationMS
 		runtime.TimedRunCount = seed.TimedRunCount
+		runtime.DurationSumMS = seed.DurationSumMS
 	}
 }
 
@@ -164,11 +205,27 @@ func Open() (*Service, error) {
 	return svc, nil
 }
 
-// Store returns the underlying store. It is exposed so callers that still need
+// Config returns a copy of the current application configuration, safe to
-// resolved paths and config (the GUI, during the transition) can reach them;
+// call from any goroutine. UpdateSettings, SetGlobalPause, and SetJobListView
-// later phases narrow this surface.
+// are the only writers and all mutate store.Config under mu; copying under the
-func (s *Service) Store() *storage.Store {
+// same lock is what keeps a UI read from racing them, instead of holding onto
-	return s.store
+// the *storage.Store this used to hand out (see STANDARDS: the UI reads
+// Service state through typed events and accessors, never shared mutable
+// state).
+func (s *Service) Config() domain.Config {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.store.Config
+}
+
+// Paths returns a copy of the store's resolved filesystem paths. AppDir and
+// ConfigPath are fixed for the process; JobsPath, JobsDir, and LogsDir are
+// re-derived under mu on every settings save (storage.Store.applyConfigPaths),
+// so this copies under the same lock as Config for the same reason.
+func (s *Service) Paths() storage.Paths {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return s.store.Paths
 }
 
 // Jobs returns a copy of the durable jobs slice. Returning a copy keeps callers

src/app/service_test.go

@@ -47,11 +47,3 @@ func TestJobsReturnsCopy(t *testing.T) {
 		t.Errorf("Service state leaked through Jobs(): name = %q, want %q", again[0].Name, "Original")
 	}
 }
-
-func TestStoreReturnsWiredStore(t *testing.T) {
-	store := &storage.Store{}
-	svc := NewService(store, nil)
-	if svc.Store() != store {
-		t.Error("Store() did not return the wired store")
-	}
-}

src/app/version.go

@@ -3,4 +3,4 @@ package app
 // Version is the application version shown in the GUI and used by build
 // scripts in artifact names. It is a var rather than a const so release builds
 // can override it with Go ldflags when CI tags a build.
-var Version = "0.15.0"
+var Version = "1.0.3"

src/domain/config.go

@@ -5,6 +5,23 @@ package domain
 // launches omit this flag and open the normal window.
 const StartInTrayArgument = "--start-in-tray"
 
+// AutostartArguments returns the command-line suffix written to a platform
+// autostart entry when KeepRunningInTray is enabled. An empty string means the
+// app should open its window normally after sign-in.
+func AutostartArguments(keepInTray bool) string {
+	if keepInTray {
+		return StartInTrayArgument
+	}
+	return ""
+}
+
+// ResolveStartHidden reports whether an autostart launch should skip showing
+// the main window. The CLI flag is ignored when KeepRunningInTray is off so a
+// stale shortcut cannot hide the app with no tray icon to restore it.
+func ResolveStartHidden(cliStartInTray, keepInTray bool) bool {
+	return cliStartInTray && keepInTray
+}
+
 // ExecutionMode controls whether due jobs run concurrently or one at a time.
 type ExecutionMode string
 
@@ -21,8 +38,8 @@ const (
 type Theme string
 
 const (
-	// ThemeDefault keeps Fyne's built-in theme — the original look.
+	// ThemeSystem keeps Fyne's built-in theme, following the platform look.
-	ThemeDefault Theme = "default"
+	ThemeSystem Theme = "system"
 	// ThemeGoSentry applies the branded teal/amber theme derived from the logo
 	// and app icon.
 	ThemeGoSentry Theme = "gosentry"
@@ -87,8 +104,8 @@ type Config struct {
 	// omitempty would hide a deliberate choice from the hand-editable config.
 	DefaultTimeoutSeconds int  `json:"default_timeout_seconds"`
 	Paused                bool `json:"paused,omitempty"`
-	// Theme selects the visual appearance. Empty is treated as ThemeDefault so
+	// Theme selects the visual appearance. Empty is treated as ThemeGoSentry so
-	// configs written before this field existed keep the original look.
+	// configs written before this field existed pick up the branded look.
 	Theme Theme `json:"theme,omitempty"`
 	// JobListView selects the Jobs list density. Empty is treated as
 	// JobListViewDetailed so configs written before this field existed keep the
@@ -110,7 +127,7 @@ func DefaultConfig() Config {
 		NotifyOnFailure:       true,
 		ExecutionMode:         ExecutionModeParallel,
 		OverlapPolicy:         OverlapPolicySkip,
-		Theme:                 ThemeDefault,
+		Theme:                 ThemeGoSentry,
 		JobListView:           JobListViewDetailed,
 		DefaultTimeoutSeconds: 0,
 	}

src/domain/config_test.go

@@ -2,6 +2,31 @@ package domain
 
 import "testing"
 
+func TestAutostartArguments(t *testing.T) {
+	if got := AutostartArguments(true); got != StartInTrayArgument {
+		t.Errorf("AutostartArguments(true) = %q, want %q", got, StartInTrayArgument)
+	}
+	if got := AutostartArguments(false); got != "" {
+		t.Errorf("AutostartArguments(false) = %q, want empty", got)
+	}
+}
+
+func TestResolveStartHidden(t *testing.T) {
+	cases := []struct {
+		cli, keep, want bool
+	}{
+		{true, true, true},
+		{true, false, false},
+		{false, true, false},
+		{false, false, false},
+	}
+	for _, tc := range cases {
+		if got := ResolveStartHidden(tc.cli, tc.keep); got != tc.want {
+			t.Errorf("ResolveStartHidden(%v, %v) = %v, want %v", tc.cli, tc.keep, got, tc.want)
+		}
+	}
+}
+
 // TestJobListViewIsCompact pins the normalization rule: only the exact
 // "compact" value selects the one-line rows, so empty and unrecognised values
 // (including configs written before the field existed) keep the detailed look.
@@ -22,9 +47,3 @@ func TestJobListViewIsCompact(t *testing.T) {
 		}
 	}
 }
-
-func TestDefaultConfigUsesDetailedJobList(t *testing.T) {
-	if got := DefaultConfig().JobListView; got != JobListViewDetailed {
-		t.Errorf("default JobListView = %q, want %q", got, JobListViewDetailed)
-	}
-}

src/domain/record.go

@@ -4,13 +4,13 @@ package domain
 // output is also written to a log file; the in-memory Output copy exists so the
 // latest run can be displayed without reopening the log on every repaint.
 type RunRecord struct {
-	Time       string `yaml:"time"`
+	Time       string
-	JobID      int    `yaml:"job_id"`
+	JobID      int
-	JobName    string `yaml:"job_name"`
+	JobName    string
-	Trigger    string `yaml:"trigger,omitempty"`
+	Trigger    string
-	State      string `yaml:"state"`
+	State      string
-	Detail     string `yaml:"detail"`
+	Detail     string
-	LogFile    string `yaml:"log_file,omitempty"`
+	LogFile    string
-	Output     string `yaml:"output,omitempty"`
+	Output     string
-	DurationMS int64  `yaml:"duration_ms,omitempty"`
+	DurationMS int64
 }

src/domain/runtime.go

@@ -36,6 +36,14 @@ type JobRuntime struct {
 	// launches that round to 0) increment RunCount but not this. StartOnly runs
 	// otherwise contribute their launch latency.
 	TimedRunCount int
+	// DurationSumMS is the running total of every timed run's duration.
+	// AvgDurationMS is always DurationSumMS/TimedRunCount, computed fresh on each
+	// update rather than folded incrementally — an incremental integer mean
+	// truncates on every step, and the error compounds over the life of a job
+	// that keeps running. A stored sum divided once per update matches the exact
+	// sum/count average runner.aggregateLogStats computes when seeding from logs,
+	// so the two no longer disagree about the same run history.
+	DurationSumMS int64
 }
 
 // NewRuntime builds the initial runtime state for a freshly loaded or created

src/platform/autostart/autostart.go

@@ -3,7 +3,9 @@ package autostart
 // Manager controls platform autostart for the application.
 type Manager interface {
 	// Set writes or removes the platform autostart entry to match enabled.
-	Set(enabled bool, executablePath, iconPath string) error
+	// When enabled, startInTray selects whether the entry passes --start-in-tray.
-	// Status reports whether the platform autostart entry matches expectedEnabled.
+	Set(enabled, startInTray bool, executablePath, iconPath string) error
-	Status(expectedEnabled bool, executablePath string) (ok bool, message string)
+	// Status reports whether the platform autostart entry matches expectedEnabled
+	// and startInTray.
+	Status(expectedEnabled, startInTray bool, executablePath string) (ok bool, message string)
 }

src/platform/autostart/autostart_linux.go

@@ -17,17 +17,17 @@ type linuxManager struct{}
 // New returns the Linux autostart Manager.
 func New() Manager { return linuxManager{} }
 
-func (linuxManager) Set(enabled bool, executablePath, iconPath string) error {
+func (linuxManager) Set(enabled, startInTray bool, executablePath, iconPath string) error {
-	return SetAutostart(enabled, executablePath, iconPath)
+	return setAutostart(enabled, startInTray, executablePath, iconPath)
 }
 
-func (linuxManager) Status(expectedEnabled bool, executablePath string) (bool, string) {
+func (linuxManager) Status(expectedEnabled, startInTray bool, executablePath string) (bool, string) {
-	return AutostartStatus(expectedEnabled, executablePath)
+	return autostartStatus(expectedEnabled, startInTray, executablePath)
 }
 
 const autostartDesktopFileName = "gosentry.desktop"
 
-func SetAutostart(enabled bool, executablePath string, iconPath string) error {
+func setAutostart(enabled bool, startInTray bool, executablePath string, iconPath string) error {
 	desktopPath, err := autostartDesktopPath()
 	if err != nil {
 		return err
@@ -36,15 +36,19 @@ func SetAutostart(enabled bool, executablePath string, iconPath string) error {
 		if err := os.MkdirAll(filepath.Dir(desktopPath), 0o755); err != nil {
 			return err
 		}
+		execLine := quoteDesktopExec(executablePath)
+		if args := domain.AutostartArguments(startInTray); args != "" {
+			execLine += " " + args
+		}
 		desktopFile := fmt.Sprintf(`[Desktop Entry]
 Type=Application
 Name=GoSentry
 Comment=GoSentry desktop scheduler
-Exec=%s %s
+Exec=%s
 %s
 Terminal=false
 X-GNOME-Autostart-enabled=true
-`, quoteDesktopExec(executablePath), domain.StartInTrayArgument, desktopIconLine(iconPath))
+`, execLine, desktopIconLine(iconPath))
 		return os.WriteFile(desktopPath, []byte(desktopFile), 0o644)
 	}
 
@@ -54,7 +58,7 @@ X-GNOME-Autostart-enabled=true
 	return nil
 }
 
-func AutostartStatus(expectedEnabled bool, executablePath string) (bool, string) {
+func autostartStatus(expectedEnabled bool, startInTray bool, executablePath string) (bool, string) {
 	desktopPath, err := autostartDesktopPath()
 	if err != nil {
 		return false, "Cannot resolve XDG autostart directory"
@@ -70,9 +74,15 @@ func AutostartStatus(expectedEnabled bool, executablePath string) (bool, string)
 	if readErr != nil {
 		return false, "Autostart desktop entry is missing"
 	}
-	expectedExec := "Exec=" + quoteDesktopExec(executablePath) + " " + domain.StartInTrayArgument
+	expectedExec := "Exec=" + quoteDesktopExec(executablePath)
+	if args := domain.AutostartArguments(startInTray); args != "" {
+		expectedExec += " " + args
+	}
 	if !strings.Contains(string(data), expectedExec) {
-		return false, "Autostart desktop entry points to another executable"
+		if startInTray {
+			return false, "Autostart desktop entry does not start in tray"
+		}
+		return false, "Autostart desktop entry starts in tray while setting is off"
 	}
 	return true, "Autostart is configured"
 }

src/platform/autostart/autostart_linux_test.go

@@ -14,7 +14,7 @@ func TestLinuxAutostartStartsInTray(t *testing.T) {
 	t.Setenv("XDG_CONFIG_HOME", t.TempDir())
 
 	executablePath := "/opt/Go Sentry/gosentry"
-	if err := SetAutostart(true, executablePath, "/opt/Go Sentry/gosentry.png"); err != nil {
+	if err := setAutostart(true, true, executablePath, "/opt/Go Sentry/gosentry.png"); err != nil {
 		t.Fatalf("enable autostart: %v", err)
 	}
 
@@ -33,3 +33,29 @@ func TestLinuxAutostartStartsInTray(t *testing.T) {
 	}
 }
 
+func TestLinuxAutostartWithoutTrayFlag(t *testing.T) {
+	t.Setenv("XDG_CONFIG_HOME", t.TempDir())
+
+	executablePath := "/opt/Go Sentry/gosentry"
+	if err := setAutostart(true, false, executablePath, ""); err != nil {
+		t.Fatalf("enable autostart: %v", err)
+	}
+
+	desktopPath, err := autostartDesktopPath()
+	if err != nil {
+		t.Fatalf("resolve desktop path: %v", err)
+	}
+	data, err := os.ReadFile(desktopPath)
+	if err != nil {
+		t.Fatalf("read desktop entry: %v", err)
+	}
+
+	expectedExec := "Exec=" + quoteDesktopExec(executablePath)
+	if !strings.Contains(string(data), expectedExec) {
+		t.Fatalf("desktop entry should not include tray flag: %s", data)
+	}
+	if strings.Contains(string(data), domain.StartInTrayArgument) {
+		t.Fatalf("desktop entry must not pass --start-in-tray: %s", data)
+	}
+}
+

src/platform/autostart/autostart_other.go

@@ -9,22 +9,22 @@ type otherManager struct{}
 // New returns the stub autostart Manager for unsupported platforms.
 func New() Manager { return otherManager{} }
 
-func (otherManager) Set(enabled bool, executablePath, iconPath string) error {
+func (otherManager) Set(enabled, startInTray bool, executablePath, iconPath string) error {
-	return SetAutostart(enabled, executablePath, iconPath)
+	return setAutostart(enabled, startInTray, executablePath, iconPath)
 }
 
-func (otherManager) Status(expectedEnabled bool, executablePath string) (bool, string) {
+func (otherManager) Status(expectedEnabled, startInTray bool, executablePath string) (bool, string) {
-	return AutostartStatus(expectedEnabled, executablePath)
+	return autostartStatus(expectedEnabled, startInTray, executablePath)
 }
 
-func SetAutostart(enabled bool, executablePath string, iconPath string) error {
+func setAutostart(enabled bool, startInTray bool, executablePath string, iconPath string) error {
 	if !enabled {
 		return nil
 	}
 	return fmt.Errorf("autostart is not implemented for this platform")
 }
 
-func AutostartStatus(expectedEnabled bool, executablePath string) (bool, string) {
+func autostartStatus(expectedEnabled bool, startInTray bool, executablePath string) (bool, string) {
 	if !expectedEnabled {
 		return true, "Autostart is off"
 	}

src/platform/autostart/autostart_windows.go

@@ -16,18 +16,18 @@ type windowsManager struct{}
 // New returns the Windows autostart Manager.
 func New() Manager { return windowsManager{} }
 
-func (windowsManager) Set(enabled bool, executablePath, iconPath string) error {
+func (windowsManager) Set(enabled, startInTray bool, executablePath, iconPath string) error {
-	return SetAutostart(enabled, executablePath, iconPath)
+	return setAutostart(enabled, startInTray, executablePath, iconPath)
 }
 
-func (windowsManager) Status(expectedEnabled bool, executablePath string) (bool, string) {
+func (windowsManager) Status(expectedEnabled, startInTray bool, executablePath string) (bool, string) {
-	return AutostartStatus(expectedEnabled, executablePath)
+	return autostartStatus(expectedEnabled, startInTray, executablePath)
 }
 
 const autostartName = "GoSentry"
 const startupShortcutFile = autostartName + ".lnk"
 
-func SetAutostart(enabled bool, executablePath string, iconPath string) error {
+func setAutostart(enabled bool, startInTray bool, executablePath string, iconPath string) error {
 	// Windows autostart used to write HKCU\Run values, but that approach became
 	// brittle once paths with spaces and the "--start-in-tray" argument entered
 	// the picture. A Startup-folder shortcut stores target path and arguments as
@@ -39,12 +39,12 @@ func SetAutostart(enabled bool, executablePath string, iconPath string) error {
 	}
 
 	if enabled {
-		return createStartupShortcut(shortcutPath, executablePath, iconPath)
+		return createStartupShortcut(shortcutPath, executablePath, iconPath, domain.AutostartArguments(startInTray))
 	}
 	return removeIfExists(shortcutPath)
 }
 
-func AutostartStatus(expectedEnabled bool, executablePath string) (bool, string) {
+func autostartStatus(expectedEnabled bool, startInTray bool, executablePath string) (bool, string) {
 	shortcutPath, err := startupShortcutPath()
 	if err != nil {
 		return false, "Startup folder cannot be resolved"
@@ -74,8 +74,12 @@ func AutostartStatus(expectedEnabled bool, executablePath string) (bool, string)
 	if !sameWindowsPath(actual, executablePath) {
 		return false, "Autostart shortcut points to another executable"
 	}
-	if strings.TrimSpace(arguments) != domain.StartInTrayArgument {
+	expectedArgs := domain.AutostartArguments(startInTray)
-		return false, "Autostart shortcut does not start in tray"
+	if strings.TrimSpace(arguments) != expectedArgs {
+		if startInTray {
+			return false, "Autostart shortcut does not start in tray"
+		}
+		return false, "Autostart shortcut starts in tray while setting is off"
 	}
 	return true, "Autostart is configured"
 }
@@ -88,7 +92,7 @@ func startupShortcutPath() (string, error) {
 	return filepath.Join(appData, "Microsoft", "Windows", "Start Menu", "Programs", "Startup", startupShortcutFile), nil
 }
 
-func createStartupShortcut(shortcutPath string, executablePath string, iconPath string) error {
+func createStartupShortcut(shortcutPath string, executablePath string, iconPath string, arguments string) error {
 	if err := os.MkdirAll(filepath.Dir(shortcutPath), 0755); err != nil {
 		return err
 	}
@@ -106,7 +110,7 @@ func createStartupShortcut(shortcutPath string, executablePath string, iconPath
 	command.Env = append(os.Environ(),
 		"GOSENTRY_SHORTCUT_PATH="+shortcutPath,
 		"GOSENTRY_TARGET_PATH="+executablePath,
-		"GOSENTRY_ARGUMENTS="+domain.StartInTrayArgument,
+		"GOSENTRY_ARGUMENTS="+arguments,
 		"GOSENTRY_WORKING_DIRECTORY="+workingDirectory,
 		"GOSENTRY_ICON_PATH="+iconPath,
 	)
@@ -122,7 +126,7 @@ func readShortcut(shortcutPath string) (string, string, error) {
 	// OEM code page (e.g. CP866 on Russian Windows). Without this override,
 	// [Console]::Out.Write encodes Cyrillic and other non-ASCII characters as
 	// OEM bytes; Go then reads them as UTF-8 and gets a different string from
-	// os.Executable, causing AutostartStatus to report "shortcut points to
+	// os.Executable, causing autostartStatus to report "shortcut points to
 	// another executable" for any install path that contains non-ASCII chars.
 	// New-Object System.Text.UTF8Encoding($false) is UTF-8 without BOM.
 	script := `[Console]::OutputEncoding = New-Object System.Text.UTF8Encoding($false); $shell = New-Object -ComObject WScript.Shell; $shortcut = $shell.CreateShortcut($env:GOSENTRY_SHORTCUT_PATH); [Console]::Out.Write($shortcut.TargetPath + [Environment]::NewLine + $shortcut.Arguments)`

src/platform/autostart/autostart_windows_test.go

@@ -12,14 +12,8 @@ import (
 )
 
 func TestSameWindowsPathIgnoresCaseAndQuotes(t *testing.T) {
-	if !sameWindowsPath(`"D:\Apps\GoSentry\gosentry.exe"`, `d:\apps\gosentry\gosentry.exe`) {
-		t.Fatal("expected paths to match")
-	}
-}
-
-func TestSameWindowsPathHandlesSpaces(t *testing.T) {
 	if !sameWindowsPath(`"D:\Local Git\GoSentry\gosentry.exe"`, `d:\local git\gosentry\gosentry.exe`) {
-		t.Fatal("expected paths with spaces to match")
+		t.Fatal("expected paths to match")
 	}
 }
 
@@ -88,7 +82,7 @@ func TestCreateStartupShortcutHandlesCyrillicPath(t *testing.T) {
 		t.Fatalf("create target file: %v", err)
 	}
 
-	if err := createStartupShortcut(shortcutPath, targetPath, ""); err != nil {
+	if err := createStartupShortcut(shortcutPath, targetPath, "", domain.StartInTrayArgument); err != nil {
 		t.Fatalf("create shortcut: %v", err)
 	}
 
@@ -104,6 +98,51 @@ func TestCreateStartupShortcutHandlesCyrillicPath(t *testing.T) {
 	}
 }
 
+func TestCreateStartupShortcutWithoutTrayFlag(t *testing.T) {
+	tempDir := t.TempDir()
+	shortcutPath := filepath.Join(tempDir, "GoSentry.lnk")
+	targetPath := filepath.Join(tempDir, "gosentry.exe")
+	if err := os.WriteFile(targetPath, []byte("test"), 0644); err != nil {
+		t.Fatalf("create target file: %v", err)
+	}
+
+	if err := createStartupShortcut(shortcutPath, targetPath, "", ""); err != nil {
+		t.Fatalf("create shortcut: %v", err)
+	}
+
+	_, arguments, err := readShortcut(shortcutPath)
+	if err != nil {
+		t.Fatalf("read shortcut: %v", err)
+	}
+	if arguments != "" {
+		t.Fatalf("shortcut arguments mismatch: got %q want empty", arguments)
+	}
+}
+
+func TestAutostartStatusRequiresMatchingTrayFlag(t *testing.T) {
+	tempDir := t.TempDir()
+	t.Setenv("APPDATA", tempDir)
+	shortcutPath, err := startupShortcutPath()
+	if err != nil {
+		t.Fatalf("startupShortcutPath: %v", err)
+	}
+	targetPath := filepath.Join(tempDir, "gosentry.exe")
+	if err := os.WriteFile(targetPath, []byte("test"), 0644); err != nil {
+		t.Fatalf("create target: %v", err)
+	}
+	if err := createStartupShortcut(shortcutPath, targetPath, "", domain.StartInTrayArgument); err != nil {
+		t.Fatalf("create shortcut: %v", err)
+	}
+
+	ok, message := autostartStatus(true, false, targetPath)
+	if ok {
+		t.Fatalf("expected problem when tray flag mismatches, got OK: %s", message)
+	}
+	if message != "Autostart shortcut starts in tray while setting is off" {
+		t.Fatalf("unexpected message: %q", message)
+	}
+}
+
 func TestCreateStartupShortcutHandlesSpaces(t *testing.T) {
 	tempDir := t.TempDir()
 	shortcutPath := filepath.Join(tempDir, "GoSentry test.lnk")
@@ -115,7 +154,7 @@ func TestCreateStartupShortcutHandlesSpaces(t *testing.T) {
 		t.Fatalf("create target file: %v", err)
 	}
 
-	if err := createStartupShortcut(shortcutPath, targetPath, ""); err != nil {
+	if err := createStartupShortcut(shortcutPath, targetPath, "", domain.StartInTrayArgument); err != nil {
 		t.Fatalf("create shortcut: %v", err)
 	}
 

src/runner/cleanup.go

@@ -9,6 +9,11 @@ import (
 	"time"
 )
 
+// CleanupLogs enforces the count and age retention policies on the .log files
+// in logsDir. maxFiles <= 0 disables the count policy and maxAgeDays <= 0
+// disables the age policy, independently — "keep everything" is a value the
+// user can choose in Settings, not just an internal default (STANDARDS
+// §Intentional behavior).
 func CleanupLogs(logsDir string, maxFiles int, maxAgeDays int) error {
 	entries, err := os.ReadDir(logsDir)
 	if err != nil {

src/runner/cleanup_test.go

@@ -50,22 +50,6 @@ func TestCleanupLogsRemovesFilesPastMaxAge(t *testing.T) {
 	}
 }
 
-func TestCleanupLogsKeepsFilesWithinAgeLimit(t *testing.T) {
-	dir := t.TempDir()
-	for i := 1; i <= 3; i++ {
-		path := writeLogFile(t, dir, fmt.Sprintf("job_%d.log", i))
-		setModTime(t, path, time.Duration(i)*24*time.Hour)
-	}
-
-	if err := CleanupLogs(dir, 100, 30); err != nil {
-		t.Fatal(err)
-	}
-	entries, _ := os.ReadDir(dir)
-	if len(entries) != 3 {
-		t.Errorf("expected 3 files kept within age limit, got %d", len(entries))
-	}
-}
-
 // TestCleanupLogsByCountDeletesOldest verifies the count-based policy: when more
 // than maxFiles log files exist the oldest (by modification time) are removed.
 // maxAgeDays=0 disables age-based cleanup so the test exercises count only.

src/runner/invocation.go

@@ -64,5 +64,3 @@ func LogArguments(arguments string) string {
 	}
 	return strings.ReplaceAll(strings.TrimSpace(arguments), "\r\n", "\n")
 }
-
-func logArguments(arguments string) string { return LogArguments(arguments) }

src/runner/invocation_windows.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 	"syscall"
 	"unicode"
+	"unicode/utf8"
 )
 
 func shellCommand(ctx context.Context, command string) *exec.Cmd {
@@ -32,19 +33,45 @@ func quoteLeadingWindowsProgramPath(command string) string {
 	}
 
 	lower := strings.ToLower(trimmed)
+	pathEnd := -1
 	for _, extension := range []string{".exe", ".cmd", ".bat", ".com"} {
-		index := strings.Index(lower, extension)
+		end := earliestBoundedExtensionEnd(lower, extension)
-		if index < 0 {
+		if end >= 0 && (pathEnd < 0 || end < pathEnd) {
-			continue
+			pathEnd = end
 		}
-		pathEnd := index + len(extension)
-		programPath := trimmed[:pathEnd]
-		if !strings.ContainsFunc(programPath, unicode.IsSpace) {
-			return command
-		}
-		return leadingWhitespace + `"` + programPath + `"` + trimmed[pathEnd:]
 	}
-	return command
+	if pathEnd < 0 {
+		return command
+	}
+	programPath := trimmed[:pathEnd]
+	if !strings.ContainsFunc(programPath, unicode.IsSpace) {
+		return command
+	}
+	return leadingWhitespace + `"` + programPath + `"` + trimmed[pathEnd:]
+}
+
+// earliestBoundedExtensionEnd returns the offset just past the first
+// occurrence of extension in s that ends at a token boundary (end of string
+// or whitespace), or -1 if none does. Scanning left to right and rejecting
+// unbounded matches keeps a trailing "...\App.exe" inside an argument, such
+// as "run.bat C:\tool.exe", from being mistaken for the program path.
+func earliestBoundedExtensionEnd(s, extension string) int {
+	offset := 0
+	for {
+		index := strings.Index(s[offset:], extension)
+		if index < 0 {
+			return -1
+		}
+		end := offset + index + len(extension)
+		if end == len(s) {
+			return end
+		}
+		r, _ := utf8.DecodeRuneInString(s[end:])
+		if unicode.IsSpace(r) {
+			return end
+		}
+		offset += index + 1
+	}
 }
 
 func startsWithWindowsRootedPath(command string) bool {

src/runner/logfile.go

@@ -23,15 +23,73 @@ func writeRunLog(logsDir string, job domain.Job, trigger string, state string, d
 	// by run time. The job name is included for human scanning, but sanitized to
 	// avoid characters that are invalid on Windows or awkward on shells.
 	fileName := started.Format("20060102-150405") + "_" + sanitizeFileName(job.Name) + ".log"
-	path := filepath.Join(logsDir, fileName)
+	path := uniqueLogPath(logsDir, fileName)
 	content := fmt.Sprintf("time: %s\njob_id: %d\njob_name: %s\ntrigger: %s\nstate: %s\ndetail: %s\nduration: %d\ncommand: %s\narguments: %s\nstart_only: %t\n\n%s\n",
-		started.Format("2006-01-02 15:04:05"), job.ID, job.Name, trigger, state, detail, durationMS, job.Command, logArguments(job.Arguments), job.StartOnly, output)
+		started.Format("2006-01-02 15:04:05"), job.ID, job.Name, trigger, state, detail, durationMS, job.Command, LogArguments(job.Arguments), job.StartOnly, output)
-	if err := os.WriteFile(path, []byte(content), 0o644); err != nil {
+	if err := writeFileAtomic(logsDir, path, []byte(content), 0o644); err != nil {
 		return "", fmt.Errorf("write log file: %w", err)
 	}
 	return path, nil
 }
 
+// writeFileAtomic writes data to a temp file in dir, then renames it over
+// path. Rename is atomic within a volume on both supported platforms, so a
+// crash or a killed process mid-write can never leave path holding a
+// truncated log file the way a direct os.WriteFile could.
+func writeFileAtomic(dir, path string, data []byte, perm os.FileMode) error {
+	tmp, err := os.CreateTemp(dir, filepath.Base(path)+".tmp*")
+	if err != nil {
+		return err
+	}
+	tmpPath := tmp.Name()
+	success := false
+	defer func() {
+		if !success {
+			os.Remove(tmpPath)
+		}
+	}()
+
+	if _, err := tmp.Write(data); err != nil {
+		tmp.Close()
+		return err
+	}
+	if err := tmp.Sync(); err != nil {
+		tmp.Close()
+		return err
+	}
+	if err := tmp.Close(); err != nil {
+		return err
+	}
+	if err := os.Chmod(tmpPath, perm); err != nil {
+		return err
+	}
+	if err := os.Rename(tmpPath, path); err != nil {
+		return err
+	}
+	success = true
+	return nil
+}
+
+// uniqueLogPath returns a path for fileName in dir, appending a disambiguating
+// "-2", "-3", … suffix before the extension if the plain name is already
+// taken. Two runs of the same job in the same second — a fast manual re-run,
+// or a sub-second queue drain — would otherwise share one timestamp and the
+// second write would silently overwrite the first.
+func uniqueLogPath(dir, fileName string) string {
+	path := filepath.Join(dir, fileName)
+	if _, err := os.Stat(path); err != nil {
+		return path
+	}
+	ext := filepath.Ext(fileName)
+	base := strings.TrimSuffix(fileName, ext)
+	for n := 2; ; n++ {
+		candidate := filepath.Join(dir, fmt.Sprintf("%s-%d%s", base, n, ext))
+		if _, err := os.Stat(candidate); err != nil {
+			return candidate
+		}
+	}
+}
+
 func sanitizeFileName(name string) string {
 	name = strings.TrimSpace(name)
 	if name == "" {

src/runner/logfile_test.go

@@ -0,0 +1,36 @@
+package runner
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+// TestUniqueLogPathAvoidsCollision pins the fix for two runs of the same job
+// landing on the same second: without disambiguation the second write would
+// silently overwrite the first.
+func TestUniqueLogPathAvoidsCollision(t *testing.T) {
+	dir := t.TempDir()
+	const name = "20260101-120000_job.log"
+
+	first := uniqueLogPath(dir, name)
+	if first != filepath.Join(dir, name) {
+		t.Fatalf("first call: got %q, want the plain name", first)
+	}
+	if err := os.WriteFile(first, []byte("one"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	second := uniqueLogPath(dir, name)
+	if second == first {
+		t.Fatalf("second call returned the same path as an existing file: %q", second)
+	}
+	if err := os.WriteFile(second, []byte("two"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	third := uniqueLogPath(dir, name)
+	if third == first || third == second {
+		t.Fatalf("third call collided with an existing file: %q (existing: %q, %q)", third, first, second)
+	}
+}

src/runner/runner.go

@@ -36,7 +36,15 @@ func RunJob(ctx context.Context, job *domain.Job, trigger string, logsDir string
 	var detail string
 	var durationMS int64
 	if job.StartOnly {
-		invocation := jobInvocation(ctx, *job)
+		// A StartOnly process is deliberately never waited for, so it must not be
+		// tied to any cancelable context: exec.CommandContext leaves a watcher
+		// goroutine alive until Wait returns or the context is done, and since
+		// StartOnly never calls Wait that goroutine would live for the rest of the
+		// process — one per run — and then try to kill a process whose handle
+		// startJobOnly has already released. context.Background() has a nil Done
+		// channel, so os/exec starts no watcher at all and the started process is
+		// left to outlive GoSentry, which is the point of the option.
+		invocation := jobInvocation(context.Background(), *job)
 		// StartOnly jobs don't wait for process exit, so the duration measures
 		// launch latency (time to spawn the process) rather than run time.
 		state, detail, output, durationMS = startJobOnly(invocation, *job, started)
@@ -108,7 +116,7 @@ func startOnlyOutput(job domain.Job, pid int) string {
 	builder.WriteString("command:\n")
 	builder.WriteString(job.Command + "\n\n")
 	builder.WriteString("arguments:\n")
-	builder.WriteString(logArguments(job.Arguments))
+	builder.WriteString(LogArguments(job.Arguments))
 	builder.WriteString("\n\nstart_only:\ntrue")
 	return builder.String()
 }

src/runner/runner_test.go

@@ -135,8 +135,8 @@ func TestLogArguments(t *testing.T) {
 		{"--flag\n--value", "--flag\n--value"},
 	}
 	for _, tc := range cases {
-		if got := logArguments(tc.input); got != tc.want {
+		if got := LogArguments(tc.input); got != tc.want {
-			t.Errorf("logArguments(%q) = %q, want %q", tc.input, got, tc.want)
+			t.Errorf("LogArguments(%q) = %q, want %q", tc.input, got, tc.want)
 		}
 	}
 }
@@ -401,6 +401,58 @@ func TestRunJobZeroTimeoutMeansNoTimeout(t *testing.T) {
 	}
 }
 
+// A StartOnly run must not leave a watcher goroutine behind. exec.CommandContext
+// keeps one alive until Wait returns or the context is done, and StartOnly never
+// waits, so binding it to the caller's cancelable context would leak one
+// goroutine per run for the lifetime of the app — and then, on shutdown, kill a
+// process whose handle startJobOnly has already released.
+func TestRunJobStartOnlyLeavesNoContextWatcher(t *testing.T) {
+	command := "sh"
+	arguments := "-c\nexit 0"
+	if runtime.GOOS == "windows" {
+		command = `C:\Windows\System32\cmd.exe`
+		arguments = "/C\nexit /b 0"
+	}
+	job := domain.Job{
+		ID:        53,
+		Name:      "Start Only Goroutines",
+		Command:   command,
+		Arguments: arguments,
+		StartOnly: true,
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	const runs = 5
+	before := settledGoroutines()
+	for i := 0; i < runs; i++ {
+		if _, err := RunJob(ctx, &job, "Manual", t.TempDir(), 30*time.Second); err != nil {
+			t.Fatal(err)
+		}
+	}
+	// Counted before cancel on purpose: a watcher would still be parked on
+	// ctx.Done() at this point, and cancelling first would release it.
+	if leaked := settledGoroutines() - before; leaked > 1 {
+		t.Errorf("%d goroutines left after %d StartOnly runs, want none tied to the run context", leaked, runs)
+	}
+}
+
+// settledGoroutines returns the goroutine count once it has stopped falling, so
+// a goroutine that is still on its way out is not mistaken for a leak.
+func settledGoroutines() int {
+	lowest := runtime.NumGoroutine()
+	for stable, i := 0, 0; stable < 3 && i < 100; i++ {
+		time.Sleep(10 * time.Millisecond)
+		if count := runtime.NumGoroutine(); count < lowest {
+			lowest, stable = count, 0
+			continue
+		}
+		stable++
+	}
+	return lowest
+}
+
 func TestRunJobStartOnlyIgnoresTimeout(t *testing.T) {
 	command := "sh"
 	arguments := "-c\nsleep 5"

src/runner/runner_windows_test.go

@@ -51,3 +51,44 @@ func TestWindowsShellCommandLineQuotesUnquotedProgramPath(t *testing.T) {
 		t.Fatalf("expected command line %q, got %q", want, got)
 	}
 }
+
+// TestQuoteLeadingWindowsProgramPathPicksEarliestBoundedExtension pins the
+// fix for the quoting bug found in the whole-project review: the program
+// path must end at the *earliest* extension match that sits at a token
+// boundary, not the first extension in the .exe/.cmd/.bat/.com list order,
+// and not a substring match inside another word.
+func TestQuoteLeadingWindowsProgramPathPicksEarliestBoundedExtension(t *testing.T) {
+	cases := []struct {
+		name    string
+		command string
+		want    string
+	}{
+		{
+			name:    "bat with unquoted argument",
+			command: `C:\My Tools\run.bat D:\in.txt`,
+			want:    `"C:\My Tools\run.bat" D:\in.txt`,
+		},
+		{
+			name:    "bat program with exe argument",
+			command: `C:\My Tools\run.bat C:\Windows\System32\notepad.exe`,
+			want:    `"C:\My Tools\run.bat" C:\Windows\System32\notepad.exe`,
+		},
+		{
+			name:    "cmd program with exe argument",
+			command: `C:\Program Files\App\deploy.cmd D:\stage\setup.exe`,
+			want:    `"C:\Program Files\App\deploy.cmd" D:\stage\setup.exe`,
+		},
+		{
+			name:    "exe substring inside directory name",
+			command: `C:\dir.exexample\My Tool\run.bat`,
+			want:    `"C:\dir.exexample\My Tool\run.bat"`,
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := quoteLeadingWindowsProgramPath(tc.command); got != tc.want {
+				t.Fatalf("quoteLeadingWindowsProgramPath(%q) = %q, want %q", tc.command, got, tc.want)
+			}
+		})
+	}
+}

src/runner/seed.go

@@ -21,6 +21,10 @@ type SeededStats struct {
 	AvgDurationMS  int64
 	MaxDurationMS  int64
 	TimedRunCount  int
+	// DurationSumMS is the running total AvgDurationMS was computed from, folded
+	// into JobRuntime.DurationSumMS so app.updateStats continues the same exact
+	// sum instead of restarting from a value it would have to reverse-multiply.
+	DurationSumMS int64
 }
 
 // SeedStats scans logsDir once and reconstructs per-job execution-time
@@ -45,8 +49,8 @@ func SeedStats(logsDir string, jobs []domain.Job, maxFiles int) map[int]SeededSt
 		return result
 	}
 
-	byID := make(map[int][]string)
+	byID := make(map[int][]logSummary)
-	byName := make(map[string][]string)
+	byName := make(map[string][]logSummary)
 	for _, entry := range entries {
 		if entry.IsDir() {
 			continue
@@ -55,9 +59,10 @@ func SeedStats(logsDir string, jobs []domain.Job, maxFiles int) map[int]SeededSt
 		if !strings.HasSuffix(strings.ToLower(name), ".log") {
 			continue
 		}
-		path := filepath.Join(logsDir, name)
+		summary := readLogSummary(filepath.Join(logsDir, name))
-		if jobID, ok := readLogJobID(path); ok {
+		summary.name = name
-			byID[jobID] = append(byID[jobID], name)
+		if summary.hasJobID {
+			byID[summary.jobID] = append(byID[summary.jobID], summary)
 			continue
 		}
 		base := name[:len(name)-len(".log")]
@@ -65,7 +70,7 @@ func SeedStats(logsDir string, jobs []domain.Job, maxFiles int) map[int]SeededSt
 		if idx < 0 {
 			continue
 		}
-		byName[base[idx+1:]] = append(byName[base[idx+1:]], name)
+		byName[base[idx+1:]] = append(byName[base[idx+1:]], summary)
 	}
 
 	for _, job := range jobs {
@@ -76,80 +81,71 @@ func SeedStats(logsDir string, jobs []domain.Job, maxFiles int) map[int]SeededSt
 		if len(files) == 0 {
 			continue
 		}
-		// The timestamp prefix sorts chronologically, so a lexical sort puts the
+		// The timestamp prefix sorts chronologically, so a lexical sort by file
-		// oldest first; keep the newest maxFiles to honor the retention bound.
+		// name puts the oldest first; keep the newest maxFiles to honor the
-		sort.Strings(files)
+		// retention bound.
+		sort.Slice(files, func(i, j int) bool { return files[i].name < files[j].name })
 		if maxFiles > 0 && len(files) > maxFiles {
 			files = files[len(files)-maxFiles:]
 		}
-		result[job.ID] = aggregateLogStats(logsDir, files)
+		result[job.ID] = aggregateLogStats(files)
 	}
 	return result
 }
 
-// aggregateLogStats folds the header of each log file (oldest first) into one
+// aggregateLogStats folds the already-read header of each log file (oldest
-// SeededStats. Files lacking a duration line contribute to the run/fail counts
+// first) into one SeededStats. Files lacking a duration line contribute to the
-// but not to the duration aggregates.
+// run/fail counts but not to the duration aggregates.
-func aggregateLogStats(logsDir string, files []string) SeededStats {
+func aggregateLogStats(files []logSummary) SeededStats {
 	var stats SeededStats
 	var durationSum int64
 	var durationCount int
 	for _, file := range files {
-		state, durationMS, hasDuration := readLogHeader(filepath.Join(logsDir, file))
 		stats.RunCount++
-		if state == "Failed" {
+		if file.state == "Failed" {
 			stats.FailCount++
 		}
-		if hasDuration {
+		if file.hasDuration {
 			// Files are oldest first, so the last assignment is the newest run.
-			stats.LastDurationMS = durationMS
+			stats.LastDurationMS = file.durationMS
-			if durationMS > stats.MaxDurationMS {
+			if file.durationMS > stats.MaxDurationMS {
-				stats.MaxDurationMS = durationMS
+				stats.MaxDurationMS = file.durationMS
 			}
-			durationSum += durationMS
+			durationSum += file.durationMS
 			durationCount++
 		}
 	}
 	if durationCount > 0 {
 		stats.TimedRunCount = durationCount
+		stats.DurationSumMS = durationSum
 		stats.AvgDurationMS = durationSum / int64(durationCount)
 	}
 	return stats
 }
 
-// readLogJobID reads the job_id field from a log file header.
+// logSummary is everything SeedStats needs from one run log: the file name it
-func readLogJobID(path string) (int, bool) {
+// sorts by, which job wrote it, how the run ended, and how long it took.
-	file, err := os.Open(path)
+type logSummary struct {
-	if err != nil {
+	name        string
-		return 0, false
+	jobID       int
-	}
+	hasJobID    bool
-	defer file.Close()
+	state       string
-
+	durationMS  int64
-	scanner := bufio.NewScanner(file)
+	hasDuration bool
-	for scanner.Scan() {
-		line := scanner.Text()
-		if line == "" {
-			break
-		}
-		if rest, ok := strings.CutPrefix(line, "job_id: "); ok {
-			id, err := strconv.Atoi(strings.TrimSpace(rest))
-			if err != nil {
-				return 0, false
-			}
-			return id, true
-		}
-	}
-	return 0, false
 }
 
-// readLogHeader reads the "state" and "duration" fields from a log file's
+// readLogSummary reads the job_id, state, and duration fields from a log file's
-// header (the lines before the first blank line). hasDuration reports whether a
+// header (the lines before the first blank line) in a single pass, so seeding
-// well-formed duration line was present, distinguishing a legacy duration-less
+// opens each log once rather than once to find its job and again to read its
-// log from one that genuinely recorded a zero-millisecond run.
+// result. The has* flags report whether a well-formed line was present,
-func readLogHeader(path string) (state string, durationMS int64, hasDuration bool) {
+// distinguishing a legacy log written before the field existed from one that
+// genuinely recorded a zero value. An unreadable file yields a zero summary,
+// which falls back to matching by the job name in the file name.
+func readLogSummary(path string) logSummary {
+	var summary logSummary
 	file, err := os.Open(path)
 	if err != nil {
-		return "", 0, false
+		return summary
 	}
 	defer file.Close()
 
@@ -159,14 +155,19 @@ func readLogHeader(path string) (state string, durationMS int64, hasDuration boo
 		if line == "" {
 			break // end of header
 		}
-		if rest, ok := strings.CutPrefix(line, "state: "); ok {
+		if rest, ok := strings.CutPrefix(line, "job_id: "); ok {
-			state = strings.TrimSpace(rest)
+			if id, err := strconv.Atoi(strings.TrimSpace(rest)); err == nil {
+				summary.jobID = id
+				summary.hasJobID = true
+			}
+		} else if rest, ok := strings.CutPrefix(line, "state: "); ok {
+			summary.state = strings.TrimSpace(rest)
 		} else if rest, ok := strings.CutPrefix(line, "duration: "); ok {
 			if value, err := strconv.ParseInt(strings.TrimSpace(rest), 10, 64); err == nil {
-				durationMS = value
+				summary.durationMS = value
-				hasDuration = true
+				summary.hasDuration = true
 			}
 		}
 	}
-	return state, durationMS, hasDuration
+	return summary
 }

src/runner/seed_test.go

@@ -22,7 +22,7 @@ func writeTestLog(t *testing.T, dir, filename, state string, durationMS int64, j
 		content.WriteString("\n")
 	}
 	if durationMS >= 0 {
-		content.WriteString("state: " + state + "\nduration: " + itoa(durationMS) + "\n\n")
+		content.WriteString("state: " + state + "\nduration: " + strconv.FormatInt(durationMS, 10) + "\n\n")
 	} else {
 		content.WriteString("state: " + state + "\n\n")
 	}
@@ -31,25 +31,6 @@ func writeTestLog(t *testing.T, dir, filename, state string, durationMS int64, j
 	}
 }
 
-func itoa(n int64) string {
-	if n == 0 {
-		return "0"
-	}
-	neg := n < 0
-	if neg {
-		n = -n
-	}
-	buf := make([]byte, 0, 20)
-	for n > 0 {
-		buf = append([]byte{byte('0' + n%10)}, buf...)
-		n /= 10
-	}
-	if neg {
-		buf = append([]byte{'-'}, buf...)
-	}
-	return string(buf)
-}
-
 func TestSeedStatsBasic(t *testing.T) {
 	dir := t.TempDir()
 	job := domain.Job{ID: 1, Name: "Build"}
@@ -80,6 +61,9 @@ func TestSeedStatsBasic(t *testing.T) {
 	if s.AvgDurationMS != 400 {
 		t.Errorf("AvgDurationMS = %d, want 400", s.AvgDurationMS)
 	}
+	if s.DurationSumMS != 1200 {
+		t.Errorf("DurationSumMS = %d, want 1200", s.DurationSumMS)
+	}
 }
 
 // TestSeedStatsDurationLessLegacyLog verifies that a log without a duration

src/storage/store.go

@@ -16,6 +16,28 @@ type Store struct {
 	Config domain.Config
 }
 
+// PeekKeepRunningInTray reads keep_running_in_tray from gosentry.json for startup
+// decisions that must run before app.Open(). On error it returns the built-in
+// default.
+//
+// Despite the name, this can write: loadOrCreateConfig creates gosentry.json
+// with defaults on first run, the same as OpenStore does moments later when
+// app.Open() parses the now-existing file again. The double parse and the
+// write-on-read are both harmless — the second read just sees the file the
+// first one created — but worth knowing before adding a third startup path
+// that also wants an early look at the config.
+func PeekKeepRunningInTray() bool {
+	paths, err := ResolvePaths()
+	if err != nil {
+		return domain.DefaultConfig().KeepRunningInTray
+	}
+	config, err := loadOrCreateConfig(paths)
+	if err != nil {
+		return domain.DefaultConfig().KeepRunningInTray
+	}
+	return config.KeepRunningInTray
+}
+
 func OpenStore() (*Store, []domain.Job, error) {
 	paths, err := ResolvePaths()
 	if err != nil {
@@ -50,19 +72,47 @@ func OpenStore() (*Store, []domain.Job, error) {
 	return store, jobs, nil
 }
 
-func (s *Store) SaveConfig() error {
+// PrepareSaveConfig re-resolves the derived paths from the current config and
+// snapshots everything the write needs, returning the write itself as a closure.
+// It exists so a caller that guards the Store with its own lock can do the file
+// I/O — a marshal, an fsync, and a rename — after releasing that lock: the
+// snapshot cannot change under the closure, so running it unlocked is safe.
+// Prepared writes must be run in the order they were prepared, or an older
+// snapshot can land on top of a newer one.
+func (s *Store) PrepareSaveConfig() func() error {
 	s.applyConfigPaths()
-	if err := os.MkdirAll(s.Paths.AppDir, 0o755); err != nil {
+	dir := s.Paths.AppDir
-		return err
+	path := s.Paths.ConfigPath
+	config := s.Config
+	return func() error {
+		if err := os.MkdirAll(dir, 0o755); err != nil {
+			return err
+		}
+		return writeJSON(path, config)
 	}
-	return writeJSON(s.Paths.ConfigPath, s.Config)
+}
+
+// PrepareSaveJobs is PrepareSaveConfig for the jobs file. The jobs slice is
+// copied, so the caller may keep mutating its own slice as soon as this returns.
+func (s *Store) PrepareSaveJobs(jobs []domain.Job) func() error {
+	dir := s.Paths.JobsDir
+	path := s.Paths.JobsPath
+	snapshot := make([]domain.Job, len(jobs))
+	copy(snapshot, jobs)
+	return func() error {
+		if err := os.MkdirAll(dir, 0o755); err != nil {
+			return err
+		}
+		return writeJSON(path, domain.JobsFile{Jobs: snapshot})
+	}
+}
+
+func (s *Store) SaveConfig() error {
+	return s.PrepareSaveConfig()()
 }
 
 func (s *Store) SaveJobs(jobs []domain.Job) error {
-	if err := os.MkdirAll(s.Paths.JobsDir, 0o755); err != nil {
+	return s.PrepareSaveJobs(jobs)()
-		return err
-	}
-	return writeJSON(s.Paths.JobsPath, domain.JobsFile{Jobs: jobs})
 }
 
 func loadOrCreateConfig(paths Paths) (domain.Config, error) {
@@ -101,12 +151,12 @@ func loadOrCreateConfig(paths Paths) (domain.Config, error) {
 	if strings.TrimSpace(config.LogsDir) == "" {
 		config.LogsDir = "logs"
 	}
-	if config.MaxLogFiles <= 0 {
+	// MaxLogFiles and MaxLogAgeDays are deliberately not normalized: 0 means
-		config.MaxLogFiles = 100
+	// "keep everything" (see runner.CleanupLogs), not a missing value, so
-	}
+	// backfilling it here would make that choice impossible to persist. A config
-	if config.MaxLogAgeDays <= 0 {
+	// written before either field existed already carries 0 from json.Unmarshal
-		config.MaxLogAgeDays = 30
+	// leaving the DefaultConfig() value in config untouched, so old files still
-	}
+	// pick up 100 / 30 without an explicit backfill.
 	if config.ExecutionMode == "" {
 		config.ExecutionMode = domain.ExecutionModeParallel
 	}
@@ -118,7 +168,10 @@ func loadOrCreateConfig(paths Paths) (domain.Config, error) {
 	// the setting impossible to persist. Negative values are rejected by
 	// app.validateConfig before they can be saved.
 	if config.Theme == "" {
-		config.Theme = domain.ThemeDefault
+		config.Theme = domain.ThemeGoSentry
+	}
+	if config.Theme == "default" {
+		config.Theme = domain.ThemeSystem
 	}
 	return config, nil
 }
@@ -151,8 +204,9 @@ func loadOrCreateJobs(path string) ([]domain.Job, error) {
 	if found {
 		return jobs, nil
 	}
-	// Seed harmless sample jobs so a new user can immediately see scheduled
+	// Seed sample jobs so a new user can immediately see scheduled and manual
-	// and manual execution without inventing a command.
+	// execution without inventing a command. The failure sample stays disabled
+	// so it does not spam notifications; Run now still works for testing.
 	jobs = defaultJobs()
 	normalizeJobs(jobs)
 	return jobs, writeJSON(path, domain.JobsFile{Jobs: jobs})
@@ -160,13 +214,18 @@ func loadOrCreateJobs(path string) ([]domain.Job, error) {
 
 func normalizeJobs(jobs []domain.Job) {
 	next := 1
+	seen := make(map[int]bool, len(jobs))
 	for index := range jobs {
 		job := &jobs[index]
-		if job.ID <= 0 {
+		if job.ID <= 0 || seen[job.ID] {
-			// IDs are assigned only when absent. Existing IDs stay stable because
+			// IDs are assigned only when absent or already claimed by an earlier job
-			// History and future log associations use them to identify jobs.
+			// in this file — a hand-edited jobs.json can carry two entries with the
+			// same ID, which would otherwise share one runtime, one schedule-cache
+			// entry, and one SeedStats bucket. Existing, unique IDs stay stable
+			// because History and future log associations use them to identify jobs.
 			job.ID = next
 		}
+		seen[job.ID] = true
 		if job.ID >= next {
 			next = job.ID + 1
 		}
@@ -194,7 +253,12 @@ func normalizeJobs(jobs []domain.Job) {
 // apply the same rule to a path the user has typed but not yet saved.
 func ResolveConfiguredPath(appDir string, path string) string {
 	if filepath.IsAbs(path) {
-		return path
+		// Cleaned so two spellings of the same file (forward vs. backslashes, a
+		// trailing separator) resolve to the same string. UpdateSettings compares
+		// this against Paths.JobsPath to decide whether the jobs file is changing,
+		// so an uncleaned path here could trigger a spurious adoption against the
+		// file the app is already using.
+		return filepath.Clean(path)
 	}
 	// Relative paths are resolved against the executable directory, not the
 	// process working directory. This matches ResolvePaths and keeps shortcuts,
@@ -211,7 +275,8 @@ func (s *Store) applyConfigPaths() {
 }
 
 func writeJSON(path string, value any) error {
-	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+	dir := filepath.Dir(path)
+	if err := os.MkdirAll(dir, 0o755); err != nil {
 		return err
 	}
 	data, err := json.MarshalIndent(value, "", "  ")
@@ -221,10 +286,47 @@ func writeJSON(path string, value any) error {
 	// A trailing newline keeps the file friendly to editors and diff tools that
 	// expect text files to end with one.
 	data = append(data, '\n')
-	// WriteFile replaces the full file instead of patching it in place. For small
+	return writeFileAtomic(dir, path, data, 0o644)
-	// JSON files this is simpler and prevents stale keys from older versions from
+}
-	// lingering after the schema changes.
+
-	return os.WriteFile(path, data, 0o644)
+// writeFileAtomic writes data to a temp file in dir, syncs it, then renames it
+// over path. Rename is atomic within a volume on both supported platforms, so
+// a crash, a power loss, or the process being killed mid-write can never leave
+// path holding a truncated or empty file the way a direct os.WriteFile could.
+func writeFileAtomic(dir, path string, data []byte, perm os.FileMode) error {
+	tmp, err := os.CreateTemp(dir, filepath.Base(path)+".tmp*")
+	if err != nil {
+		return err
+	}
+	tmpPath := tmp.Name()
+	// Any failure past this point must remove the temp file rather than leave
+	// it behind for the next write to trip over.
+	success := false
+	defer func() {
+		if !success {
+			os.Remove(tmpPath)
+		}
+	}()
+
+	if _, err := tmp.Write(data); err != nil {
+		tmp.Close()
+		return err
+	}
+	if err := tmp.Sync(); err != nil {
+		tmp.Close()
+		return err
+	}
+	if err := tmp.Close(); err != nil {
+		return err
+	}
+	if err := os.Chmod(tmpPath, perm); err != nil {
+		return err
+	}
+	if err := os.Rename(tmpPath, path); err != nil {
+		return err
+	}
+	success = true
+	return nil
 }
 
 func defaultJobs() []domain.Job {
@@ -252,9 +354,24 @@ func defaultJobs() []domain.Job {
 			Command:  echoCommand("This paused sample should not run until enabled"),
 			Enabled:  false,
 		},
+		{
+			ID:       4,
+			Name:     "Failure notification test",
+			Folder:   "Examples",
+			Schedule: "@every 1m",
+			Command:  failCommand(),
+			Enabled:  false,
+		},
 	}
 }
 
+func failCommand() string {
+	if runtime.GOOS == "windows" {
+		return "exit /b 1"
+	}
+	return "exit 1"
+}
+
 func echoCommand(message string) string {
 	if runtime.GOOS == "windows" {
 		return "echo " + message

src/storage/store_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 
@@ -145,6 +146,50 @@ func TestNormalizeJobsFillsDefaults(t *testing.T) {
 	}
 }
 
+// TestNormalizeJobsReassignsDuplicateIDs pins the fix for a hand-edited
+// jobs.json carrying two entries with the same ID: without reassignment both
+// would share one JobRuntime, one schedule-cache entry, and one SeedStats
+// bucket, so editing or deleting either would silently affect both.
+func TestNormalizeJobsReassignsDuplicateIDs(t *testing.T) {
+	jobs := []domain.Job{
+		{ID: 5, Name: "First"},
+		{ID: 5, Name: "Second"},
+		{ID: 5, Name: "Third"},
+	}
+
+	normalizeJobs(jobs)
+
+	seen := make(map[int]bool, len(jobs))
+	for _, job := range jobs {
+		if seen[job.ID] {
+			t.Fatalf("ID %d assigned to more than one job after normalization: %+v", job.ID, jobs)
+		}
+		seen[job.ID] = true
+	}
+	if jobs[0].ID != 5 {
+		t.Errorf("first occurrence should keep its ID: got %d, want 5", jobs[0].ID)
+	}
+	if jobs[1].ID == 5 || jobs[2].ID == 5 {
+		t.Errorf("later duplicates should be reassigned away from 5: got %d, %d", jobs[1].ID, jobs[2].ID)
+	}
+}
+
+// TestResolveConfiguredPathCleansAbsolutePaths pins the fix for two spellings
+// of the same absolute path (forward vs. backslashes) resolving to different
+// strings: UpdateSettings compares this against Paths.JobsPath as strings to
+// decide whether the jobs file is changing, so an uncleaned path here could
+// trigger a spurious adoption against the file already in use.
+func TestResolveConfiguredPathCleansAbsolutePaths(t *testing.T) {
+	if runtime.GOOS != "windows" {
+		t.Skip("backslash vs. forward-slash spellings of the same path are a Windows-only ambiguity")
+	}
+	got := ResolveConfiguredPath(`C:\app`, "C:/data/jobs.json")
+	want := ResolveConfiguredPath(`C:\app`, `C:\data\jobs.json`)
+	if got != want {
+		t.Errorf("forward-slash and backslash spellings resolved differently: %q vs %q", got, want)
+	}
+}
+
 func TestLoadOrCreateConfigCreatesDefaultsOnFirstRun(t *testing.T) {
 	dir := t.TempDir()
 	paths := Paths{
@@ -171,8 +216,8 @@ func TestLoadOrCreateConfigCreatesDefaultsOnFirstRun(t *testing.T) {
 	if got.DefaultTimeoutSeconds != 0 {
 		t.Errorf("default DefaultTimeoutSeconds = %d, want 0 (no timeout)", got.DefaultTimeoutSeconds)
 	}
-	if got.Theme != domain.ThemeDefault {
+	if got.Theme != domain.ThemeGoSentry {
-		t.Errorf("default Theme = %q, want %q", got.Theme, domain.ThemeDefault)
+		t.Errorf("default Theme = %q, want %q", got.Theme, domain.ThemeGoSentry)
 	}
 	if got.JobListView != domain.JobListViewDetailed {
 		t.Errorf("default JobListView = %q, want %q", got.JobListView, domain.JobListViewDetailed)
@@ -183,6 +228,98 @@ func TestLoadOrCreateConfigCreatesDefaultsOnFirstRun(t *testing.T) {
 	}
 }
 
+// TestLoadOrCreateConfigPreservesZeroRetentionLimits verifies that 0 in
+// max_log_files / max_log_age_days is read back as 0 ("keep everything"), not
+// backfilled to the 100 / 30 defaults, since a config that already has the
+// field set is not the "field is missing" case loadOrCreateConfig backfills.
+func TestLoadOrCreateConfigPreservesZeroRetentionLimits(t *testing.T) {
+	dir := t.TempDir()
+	paths := Paths{
+		AppDir:     dir,
+		ConfigPath: filepath.Join(dir, ConfigFileName),
+	}
+	want := domain.DefaultConfig()
+	want.MaxLogFiles = 0
+	want.MaxLogAgeDays = 0
+	if err := writeJSON(paths.ConfigPath, want); err != nil {
+		t.Fatal(err)
+	}
+
+	got, err := loadOrCreateConfig(paths)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.MaxLogFiles != 0 {
+		t.Errorf("MaxLogFiles: got %d, want 0 (unlimited)", got.MaxLogFiles)
+	}
+	if got.MaxLogAgeDays != 0 {
+		t.Errorf("MaxLogAgeDays: got %d, want 0 (unlimited)", got.MaxLogAgeDays)
+	}
+}
+
+// TestLoadOrCreateJobsSeedsSampleJobsOnFirstRun verifies that a missing
+// jobs.json is created with the sample jobs from defaultJobs, so a new user
+// sees scheduled and manual execution without inventing a command.
+func TestLoadOrCreateJobsSeedsSampleJobsOnFirstRun(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "jobs.json")
+
+	got, err := loadOrCreateJobs(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := defaultJobs()
+	if len(got) != len(want) {
+		t.Fatalf("got %d jobs, want %d", len(got), len(want))
+	}
+	for i := range want {
+		if got[i].Name != want[i].Name || got[i].Schedule != want[i].Schedule || got[i].Command != want[i].Command || got[i].Enabled != want[i].Enabled {
+			t.Errorf("job %d = %+v, want %+v", i, got[i], want[i])
+		}
+	}
+
+	// The function must have written the seeded jobs to jobs.json.
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatalf("jobs.json should have been created: %v", err)
+	}
+	var file domain.JobsFile
+	if err := json.Unmarshal(data, &file); err != nil {
+		t.Fatal(err)
+	}
+	if len(file.Jobs) != len(want) {
+		t.Errorf("jobs.json has %d jobs, want %d", len(file.Jobs), len(want))
+	}
+}
+
+// TestLoadOrCreateConfigMigratesLegacyThemeDefault covers a gosentry.json that
+// still stores the retired "default" theme value: load normalizes it to system.
+func TestLoadOrCreateConfigMigratesLegacyThemeDefault(t *testing.T) {
+	dir := t.TempDir()
+	paths := Paths{
+		AppDir:     dir,
+		ConfigPath: filepath.Join(dir, ConfigFileName),
+	}
+	legacy := map[string]any{
+		"jobs_file":        "jobs.json",
+		"logs_dir":         "logs",
+		"max_log_files":    100,
+		"max_log_age_days": 30,
+		"theme":            "default",
+	}
+	if err := writeJSON(paths.ConfigPath, legacy); err != nil {
+		t.Fatal(err)
+	}
+
+	got, err := loadOrCreateConfig(paths)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got.Theme != domain.ThemeSystem {
+		t.Errorf("migrated Theme = %q, want %q", got.Theme, domain.ThemeSystem)
+	}
+}
+
 // TestLoadOrCreateConfigKeepsZeroTimeoutOnReload guards the "0 = no timeout"
 // setting against being normalized away when an existing gosentry.json is read
 // back. Loading must not treat 0 as a missing value.
@@ -367,3 +504,44 @@ func TestJobsJSONDoesNotPersistRuntimeNoise(t *testing.T) {
 		}
 	}
 }
+
+// TestWriteJSONReplacesFileAtomically pins the durability fix: writeJSON must
+// never truncate the destination in place. It writes through a temp file and
+// renames over the target, so a reader can never observe a partially written
+// file, and an existing file survives untouched if the marshal fails first.
+func TestWriteJSONReplacesFileAtomically(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "gosentry.json")
+
+	original := domain.DefaultConfig()
+	original.LogsDir = "logs-original"
+	if err := writeJSON(path, original); err != nil {
+		t.Fatal(err)
+	}
+
+	updated := domain.DefaultConfig()
+	updated.LogsDir = "logs-updated"
+	if err := writeJSON(path, updated); err != nil {
+		t.Fatal(err)
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var got domain.Config
+	if err := json.Unmarshal(data, &got); err != nil {
+		t.Fatal(err)
+	}
+	if got.LogsDir != "logs-updated" {
+		t.Fatalf("LogsDir = %q, want %q", got.LogsDir, "logs-updated")
+	}
+
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(entries) != 1 {
+		t.Fatalf("expected only the final file in %s, got %v", dir, entries)
+	}
+}

src/ui/history_view.go

@@ -5,8 +5,6 @@ import (
 	"strings"
 	"time"
 
-	"gitea.mixdep.ru/mix/gosentry/src/domain"
-
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/theme"
@@ -26,22 +24,6 @@ func newEvent(jobID int, jobName string, state string, detail string) event {
 	}
 }
 
-func collectActivity(jobs []job, runtimes map[int]*domain.JobRuntime) []event {
-	var events []event
-	for _, current := range jobs {
-		// At startup this is usually empty because jobs.json does not persist
-		// runtime logs. The function still centralizes the merge for future
-		// history loading from log metadata.
-		if rt := runtimes[current.ID]; rt != nil {
-			events = append(events, rt.Logs...)
-		}
-	}
-	sort.SliceStable(events, func(left int, right int) bool {
-		return events[left].Time < events[right].Time
-	})
-	return events
-}
-
 // textWidth measures how wide s renders at the theme's current body text size.
 func textWidth(s string) float32 {
 	return fyne.MeasureText(s, theme.TextSize(), fyne.TextStyle{}).Width
@@ -102,23 +84,113 @@ const historyTimeSample = "2026-01-02 15:04:05"
 // Detail and Log are free text, so their width tracks the values actually
 // present, bounded the same way the Log column always was.
 func historyColumnWidths(rows []event) [6]float32 {
-	jobNames := make([]string, 0, len(rows))
+	var content [3][]string
-	details := make([]string, 0, len(rows))
+	for i := range content {
-	logNames := make([]string, 0, len(rows))
+		content[i] = make([]string, 0, len(rows))
+	}
 	for _, current := range rows {
-		jobNames = append(jobNames, current.JobName)
+		for i, value := range historyContentValues(current) {
-		details = append(details, current.Detail)
+			content[i] = append(content[i], value)
-		logNames = append(logNames, logFileName(current.LogFile))
+		}
 	}
 	min, max := textColumnMinWidth(), textColumnMaxWidth()
-	return [6]float32{
+	widths := [6]float32{
-		textWidth(historyTimeSample) + cellPadding(),
+		0: textWidth(historyTimeSample) + cellPadding(),
-		textColumnWidth(historyTriggerSamples, min, max),
+		1: textColumnWidth(historyTriggerSamples, min, max),
-		textColumnWidth(jobNames, min, max),
+		3: textColumnWidth(historyStateSamples, min, max),
-		textColumnWidth(historyStateSamples, min, max),
-		textColumnWidth(details, min, max),
-		textColumnWidth(logNames, min, max),
 	}
+	for i, col := range historyContentCols {
+		widths[col] = textColumnWidth(content[i], min, max)
+	}
+	return widths
+}
+
+// maxHistoryRows caps the session History list, the way app.maxJobLogs caps a
+// job's own activity list. History is never persisted and every record carries
+// the run's full captured output, so an app left running in the tray — the mode
+// GoSentry is designed for — would otherwise hold every record of every run
+// forever, and pay a full resort plus a full column-width rescan on each new
+// one. One job on @every 10s produces ~8 600 records a day.
+const maxHistoryRows = 1000
+
+// historyLog is the session History: the capped record list plus the column
+// widths measured from it. It exists so the widths can be folded in one record
+// at a time instead of being recomputed from every row on every event, which
+// is what made the per-event cost grow with the number of rows.
+type historyLog struct {
+	records []event
+	widths  [6]float32
+	// textSize and padding are the theme metrics widths were last measured at.
+	// A theme change invalidates every measurement, so it forces a full rescan
+	// rather than folding new records into stale numbers.
+	textSize float32
+	padding  float32
+}
+
+func newHistoryLog(records []event) *historyLog {
+	h := &historyLog{records: trimHistory(records)}
+	h.rescan()
+	return h
+}
+
+// trimHistory drops the oldest records past the cap. The tail of the backing
+// array is zeroed because a dropped record holds the run's whole output, which
+// would otherwise stay reachable until the slice happens to be reallocated.
+func trimHistory(records []event) []event {
+	if len(records) <= maxHistoryRows {
+		return records
+	}
+	kept := copy(records, records[len(records)-maxHistoryRows:])
+	for i := kept; i < len(records); i++ {
+		records[i] = event{}
+	}
+	return records[:kept]
+}
+
+// add appends one record and widens any content-measured column the record
+// does not fit. Widths only ever grow within a theme: a column is never
+// narrowed when a record ages out, because the rows still on screen were laid
+// out against the wider value.
+func (h *historyLog) add(record event) {
+	h.records = trimHistory(append(h.records, record))
+	if h.stale() {
+		h.rescan()
+		return
+	}
+	min, max := textColumnMinWidth(), textColumnMaxWidth()
+	for i, value := range historyContentValues(record) {
+		if width := textColumnWidth([]string{value}, min, max); width > h.widths[historyContentCols[i]] {
+			h.widths[historyContentCols[i]] = width
+		}
+	}
+}
+
+// columnWidths returns the widths to apply to the table, rescanning every
+// record only when the theme's text metrics have changed since the last scan.
+func (h *historyLog) columnWidths() [6]float32 {
+	if h.stale() {
+		h.rescan()
+	}
+	return h.widths
+}
+
+func (h *historyLog) stale() bool {
+	return theme.TextSize() != h.textSize || cellPadding() != h.padding
+}
+
+func (h *historyLog) rescan() {
+	h.textSize, h.padding = theme.TextSize(), cellPadding()
+	h.widths = historyColumnWidths(h.records)
+}
+
+// historyContentCols are the columns whose width follows the values actually
+// present, in the order historyContentValues returns them. Both the
+// incremental fold in add and the full scan in historyColumnWidths go through
+// this pair, so they cannot disagree about which columns follow content.
+var historyContentCols = [3]int{2, 4, 5}
+
+func historyContentValues(record event) [3]string {
+	return [3]string{record.JobName, record.Detail, logFileName(record.LogFile)}
 }
 
 // historyHeader is a bold tappable label used in the History table header row.
@@ -156,7 +228,7 @@ func (h *historyHeader) SetText(text string) {
 // Time caption is built per update because it carries the sort direction arrow.
 var historyHeaders = [...]string{"Time", "Trigger", "Job", "State", "Detail", "Log"}
 
-func newHistoryView(events *[]event) (*fyne.Container, func()) {
+func newHistoryView(log *historyLog) (*fyne.Container, func()) {
 	descending := false
 	headerText := func(id widget.TableCellID) string {
 		if id.Row < 0 && id.Col == 0 {
@@ -179,7 +251,7 @@ func newHistoryView(events *[]event) (*fyne.Container, func()) {
 	// per redraw: at build time, on a sort toggle, and from refresh().
 	var rows []event
 	resort := func() {
-		rows = append(rows[:0], (*events)...)
+		rows = append(rows[:0], log.records...)
 		sort.SliceStable(rows, func(left int, right int) bool {
 			if descending {
 				return rows[left].Time > rows[right].Time
@@ -224,16 +296,17 @@ func newHistoryView(events *[]event) (*fyne.Container, func()) {
 		table.Unselect(id)
 	}
 	setColumnWidths := func() {
-		for col, width := range historyColumnWidths(rows) {
+		for col, width := range log.columnWidths() {
 			table.SetColumnWidth(col, width)
 		}
 	}
 	setColumnWidths()
 
-	// refresh re-reads the event list into the sorted snapshot and recomputes
+	// refresh re-reads the event list into the sorted snapshot and re-applies
-	// every content-fit column width before redrawing, so newly recorded events
+	// the column widths before redrawing, so newly recorded events appear in
-	// appear in the current sort order and longer values widen their column
+	// the current sort order and longer values widen their column instead of
-	// instead of being truncated.
+	// being truncated. The widths come from historyLog, which folded each new
+	// record in as it arrived — this does not rescan every row.
 	refresh := func() {
 		resort()
 		setColumnWidths()

src/ui/history_view_test.go

@@ -1,12 +1,11 @@
 package ui
 
 import (
+	"strconv"
 	"strings"
 	"testing"
 	"time"
 
-	"gitea.mixdep.ru/mix/gosentry/src/domain"
-
 	"fyne.io/fyne/v2"
 	"fyne.io/fyne/v2/test"
 	"fyne.io/fyne/v2/widget"
@@ -56,31 +55,6 @@ func TestIndexOfID(t *testing.T) {
 	}
 }
 
-func TestCollectActivityMergesAndSorts(t *testing.T) {
-	jobs := []job{
-		{ID: 1, Name: "A"},
-		{ID: 2, Name: "B"},
-	}
-	runtimes := map[int]*domain.JobRuntime{
-		1: {Logs: []domain.RunRecord{{Time: "2026-01-02 10:00:00", JobID: 1}}},
-		2: {Logs: []domain.RunRecord{{Time: "2026-01-01 09:00:00", JobID: 2}}},
-	}
-	got := collectActivity(jobs, runtimes)
-	if len(got) != 2 {
-		t.Fatalf("len = %d, want 2", len(got))
-	}
-	if got[0].Time != "2026-01-01 09:00:00" || got[1].Time != "2026-01-02 10:00:00" {
-		t.Errorf("sort order = %v, want ascending by Time", got)
-	}
-}
-
-func TestCollectActivitySkipsMissingRuntimes(t *testing.T) {
-	jobs := []job{{ID: 1, Name: "A"}}
-	if got := collectActivity(jobs, nil); len(got) != 0 {
-		t.Errorf("nil runtimes: got %v, want empty", got)
-	}
-}
-
 func TestHistoryCellText(t *testing.T) {
 	events := []event{{
 		Time:    "2026-06-01 12:00:00",
@@ -144,7 +118,8 @@ func TestHistorySortToggleKeepsRowsInSync(t *testing.T) {
 		{Time: "2026-06-01 11:00:00", JobName: "B"},
 		{Time: "2026-06-01 12:00:00", JobName: "C"},
 	}
-	content, refresh := newHistoryView(&events)
+	log := newHistoryLog(events)
+	content, refresh := newHistoryView(log)
 	table, ok := content.Objects[0].(*widget.Table)
 	if !ok {
 		t.Fatal("history view does not wrap a table")
@@ -192,7 +167,7 @@ func TestHistorySortToggleKeepsRowsInSync(t *testing.T) {
 
 	// A new run arrives while the table is sorted newest-first: it must be
 	// counted and placed in the order currently on screen, not the build-time one.
-	events = append(events, event{Time: "2026-06-01 13:00:00", JobName: "D"})
+	log.add(event{Time: "2026-06-01 13:00:00", JobName: "D"})
 	refresh()
 	assertOrder("descending after refresh", "D", "C", "B", "A")
 
@@ -207,8 +182,7 @@ func TestHistoryCellTemplateIsPlainText(t *testing.T) {
 	testApp := test.NewApp()
 	defer testApp.Quit()
 
-	var events []event
+	content, _ := newHistoryView(newHistoryLog(nil))
-	content, _ := newHistoryView(&events)
 	table := content.Objects[0].(*widget.Table)
 	label, ok := table.CreateCell().(*widget.Label)
 	if !ok {
@@ -292,6 +266,96 @@ func TestHistoryColumnsFitTheirContent(t *testing.T) {
 	check("scaled theme")
 }
 
+// TestHistoryLogCapsRecords is the regression guard for the unbounded History
+// list: an app left in the tray records thousands of runs a day, each carrying
+// the run's whole captured output, so the list must drop the oldest instead of
+// growing forever.
+func TestHistoryLogCapsRecords(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+
+	log := newHistoryLog(nil)
+	for i := 0; i < maxHistoryRows+25; i++ {
+		log.add(event{Time: "t", JobName: "Job " + strconv.Itoa(i)})
+	}
+	if len(log.records) != maxHistoryRows {
+		t.Fatalf("record count = %d, want capped at %d", len(log.records), maxHistoryRows)
+	}
+	if got, want := log.records[0].JobName, "Job 25"; got != want {
+		t.Errorf("oldest kept record = %q, want %q — the cap must drop from the front", got, want)
+	}
+	last := log.records[len(log.records)-1].JobName
+	if want := "Job " + strconv.Itoa(maxHistoryRows+24); last != want {
+		t.Errorf("newest record = %q, want %q", last, want)
+	}
+	// A list handed in above the cap is trimmed too, not only one grown into it.
+	oversized := make([]event, maxHistoryRows+10)
+	if got := len(newHistoryLog(oversized).records); got != maxHistoryRows {
+		t.Errorf("pre-filled log length = %d, want %d", got, maxHistoryRows)
+	}
+}
+
+// TestHistoryLogWidthsMatchAFullScan pins the incremental column widths: while
+// every measured record is still in the list, folding each one in as it
+// arrives must give exactly what rescanning every row would, or the cheaper
+// path would clip values the old one showed.
+func TestHistoryLogWidthsMatchAFullScan(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+
+	log := newHistoryLog(nil)
+	for _, record := range []event{
+		{Time: "1", JobName: "A", Detail: "short", LogFile: `/logs/a.log`},
+		{Time: "2", JobName: "A moderately long job name", Detail: "a longer detail message", LogFile: `/logs/20260601-120000_SomeJobName.log`},
+		{Time: "3", JobName: "B", Detail: "s", LogFile: `/logs/b.log`},
+	} {
+		log.add(record)
+	}
+	if got, want := log.columnWidths(), historyColumnWidths(log.records); got != want {
+		t.Errorf("incremental widths = %v, want the full-scan widths %v", got, want)
+	}
+}
+
+// TestHistoryLogWidthsDoNotShrinkWhenRecordsAgeOut covers the other half of the
+// rule: widths only grow. Dropping the record that set a column's width must
+// not narrow the column, because the rows on screen were laid out against it.
+func TestHistoryLogWidthsDoNotShrinkWhenRecordsAgeOut(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+
+	log := newHistoryLog(nil)
+	log.add(event{Time: "1", JobName: "A job name long enough to widen its column"})
+	widest := log.columnWidths()[2]
+	for i := 0; i < maxHistoryRows; i++ {
+		log.add(event{Time: "t", JobName: "x"})
+	}
+	if got := log.columnWidths()[2]; got != widest {
+		t.Errorf("Job column width = %v after the wide record aged out, want it held at %v", got, widest)
+	}
+}
+
+// TestHistoryLogRescansOnThemeChange guards the one case the incremental fold
+// cannot handle: every stored width was measured at the old text size, so a
+// theme change has to fall back to a full rescan.
+func TestHistoryLogRescansOnThemeChange(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+
+	log := newHistoryLog([]event{
+		{Time: "1", JobName: "A moderately long job name", Detail: "a longer detail message"},
+	})
+	before := log.columnWidths()
+
+	testApp.Settings().SetTheme(test.NewTheme())
+	after := log.columnWidths()
+	if after == before {
+		t.Fatal("widths unchanged after a theme change; the fixture theme must alter text metrics")
+	}
+	if want := historyColumnWidths(log.records); after != want {
+		t.Errorf("widths after theme change = %v, want the rescanned %v", after, want)
+	}
+}
+
 func TestNewEventUsesConsistentTimestampShape(t *testing.T) {
 	ev := newEvent(1, "Job", "OK", "detail")
 	if _, err := time.Parse("2006-01-02 15:04:05", ev.Time); err != nil {

src/ui/jobs_view.go

@@ -1,8 +1,6 @@
 package ui
 
 import (
-	"fmt"
-
 	"gitea.mixdep.ru/mix/gosentry/src/app"
 	"gitea.mixdep.ru/mix/gosentry/src/domain"
 
@@ -22,329 +20,187 @@ const noFolder = "No folder"
 // view; this panel is a quick at-a-glance summary anchored below the output.
 const maxJobActivityRows = 3
 
+// jobsView owns the Jobs tab: the widgets, the view-only preferences they draw
+// (list mode and the scheduler pause label), and the jobsViewState the widgets
+// read. It replaces a single constructor whose dozen closures shared seven
+// mutable locals — the state each handler touches is now named on the struct
+// rather than captured, and the invariants that used to be maintained by hand in
+// five places live on jobsViewState.
+type jobsView struct {
+	w     fyne.Window
+	svc   *app.Service
+	state *jobsViewState
+	dp    *detailsPanel
+
+	list           *widget.List
+	folderSelect   *widget.Select
+	viewButton     *widget.Button
+	stopAllButton  *widget.Button
+	schedulerState *widget.Label
+
+	// listView and paused mirror Service-owned config so the widgets can be
+	// relabelled without a round trip. Both are re-read from the Service on every
+	// refresh; neither is a source of truth.
+	listView domain.JobListView
+	paused   bool
+}
+
 // newJobsView builds the Jobs tab: list sidebar, details panel, and toolbar.
 // It returns the assembled panel and a refresh function the caller invokes
 // whenever the service state may have changed (e.g., from the event subscriber
 // in mainwindow.go). The refresh function re-reads the service snapshot and
 // redraws all widgets in the jobs view; it does NOT touch history or settings.
 func newJobsView(w fyne.Window, svc *app.Service) (fyne.CanvasObject, func()) {
-	jobs := svc.Jobs()
+	config := svc.Config()
-	runtimes := make(map[int]*domain.JobRuntime, len(jobs))
+	v := &jobsView{
-	syncFromService := func() {
+		w:        w,
-		jobs = svc.Jobs()
+		svc:      svc,
-		for id := range runtimes {
+		state:    newJobsViewState(svc),
-			delete(runtimes, id)
+		listView: config.JobListView,
-		}
+		paused:   config.Paused,
-		for _, current := range jobs {
-			if rt := svc.Runtime(current.ID); rt != nil {
-				runtimes[current.ID] = rt
-			}
-		}
-	}
-	syncFromService()
-	runtimeFor := func(index int) *domain.JobRuntime {
-		if index < 0 || index >= len(jobs) {
-			return &domain.JobRuntime{}
-		}
-		if rt := runtimes[jobs[index].ID]; rt != nil {
-			return rt
-		}
-		return &domain.JobRuntime{}
 	}
+	v.dp = newDetailsPanel(job{}, &domain.JobRuntime{}, config.OverlapPolicy, config.DefaultTimeoutSeconds)
+	v.updateDetails()
 
-	selected := 0
+	// Build order follows what refresh() touches: the folder select fires its
-	if len(jobs) == 0 {
+	// OnChanged from SetSelected below, which refreshes, so every widget that
-		selected = -1
+	// refresh() reaches has to exist by then.
-	}
+	v.list = v.newList()
-	selectedFolder := allFolders
+	v.viewButton = v.newViewToggle()
-	schedulerPaused := svc.Store().Config.Paused
+	globalControls := v.newGlobalControls()
-	listView := svc.Store().Config.JobListView
+	v.folderSelect = v.newFolderSelect()
-	filteredJobs := filteredJobIndexes(jobs, selectedFolder)
+	v.folderSelect.SetSelected(v.state.folder)
+	v.syncListSelection()
 
-	dp := newDetailsPanel(job{}, &domain.JobRuntime{}, svc.Store().Config.OverlapPolicy, svc.Store().Config.DefaultTimeoutSeconds)
+	return v.assemble(globalControls), v.refresh
-	if selected >= 0 {
+}
-		dp.update(jobs[selected], runtimeFor(selected), svc.Store().Config.OverlapPolicy, svc.Store().Config.DefaultTimeoutSeconds)
-	} else {
-		dp.clear()
-	}
 
-	updateDetails := func(index int) {
+// refresh re-reads the Service and redraws the whole view. It is the single
-		if index < 0 || index >= len(jobs) {
+// entry point for "something changed": the toolbar handlers call it after a
-			// A folder filter can temporarily leave no selectable rows. Clearing
+// successful operation, and mainwindow's event observer calls it for everything
-			// the details panel avoids showing stale information for a hidden job.
+// else.
-			dp.clear()
+func (v *jobsView) refresh() {
-			return
+	v.state.sync()
-		}
+	// The pause state is Service-owned and can change from outside this view, so
-		selected = index
+	// it is re-read here rather than mirrored from the tap handler alone — that is
-		dp.update(jobs[selected], runtimeFor(selected), svc.Store().Config.OverlapPolicy, svc.Store().Config.DefaultTimeoutSeconds)
+	// what makes this view a consumer of SchedulerStateChanged.
-	}
+	v.applySchedulerState(v.svc.Config().Paused)
+	// updateDetails already ends in a d.logs.Refresh() (both its update and clear
+	// paths do), so refreshing the activity list again here would redraw it twice
+	// per call.
+	v.updateDetails()
+	v.list.Refresh()
+	v.syncListSelection()
+}
 
-	// list and folderSelect are declared early so closures below can reference
+// updateDetails repopulates the details pane from the current selection.
-	// them before the widget.NewList / widget.NewSelect calls assign the values.
+func (v *jobsView) updateDetails() {
-	var list *widget.List
+	current, ok := v.state.selected()
-	var folderSelect *widget.Select
+	if !ok {
-
+		// A folder filter can temporarily leave no selectable rows. Clearing the
-	refreshView := func() {
+		// details panel avoids showing stale information for a hidden job.
-		syncFromService()
+		v.dp.clear()
-		filteredJobs = filteredJobIndexes(jobs, selectedFolder)
+		return
-		updateDetails(selected)
-		dp.logs.Refresh()
-		if list != nil {
-			list.Refresh()
-		}
 	}
+	// Overlap policy and the default timeout are global settings that can change
+	// from the Settings tab while this view is open, so they are re-read on every
+	// update rather than captured once at construction.
+	config := v.svc.Config()
+	v.dp.update(current, v.state.runtime(current.ID), config.OverlapPolicy, config.DefaultTimeoutSeconds)
+}
 
-	// applyRowMode expresses the current view mode as visibility on the row's
+// syncListSelection points the list's highlight at the selected job. It is what
-	// four labels. widget.List caches the row template's MinSize, and
+// keeps the highlight and the details pane describing the same job when the row
-	// list.Refresh() re-creates the template and recomputes it, so hiding lines
+// a job sits in moves — a job created or deleted above it, a folder filter
-	// is what actually shrinks the rows: layout.NewCustomPaddedVBoxLayout and the
+// applied, or a different jobs file adopted. widget.List.Select returns early
-	// border layout both skip hidden children when measuring.
+// when the row is already highlighted, so calling this on every refresh does not
-	applyRowMode := func(inlineStatus, meta, status fyne.CanvasObject) {
+// fight the user's scrolling.
-		if listView.IsCompact() {
+func (v *jobsView) syncListSelection() {
-			inlineStatus.Show()
+	row := v.state.displayRow()
-			meta.Hide()
+	if row < 0 {
-			status.Hide()
+		v.list.UnselectAll()
-			return
+		return
-		}
-		inlineStatus.Hide()
-		meta.Show()
-		status.Show()
 	}
+	v.list.Select(row)
+}
 
-	list = widget.NewList(
+// rebuildFolders re-derives the folder filter's options from the current jobs.
-		func() int { return len(filteredJobs) },
+// Creating, editing, and deleting a job can all add or remove a folder.
-		func() fyne.CanvasObject {
+func (v *jobsView) rebuildFolders() {
-			name := widget.NewLabelWithStyle("Job name", fyne.TextAlignLeading, fyne.TextStyle{Bold: true})
+	v.folderSelect.Options = folderOptions(v.state.jobs)
-			// Truncating stops a long name from pushing the compact row's status
+	v.folderSelect.Refresh()
-			// off the right-hand edge. Labels default to TextWrapOff, which grows
+}
-			// the widget to fit instead.
-			name.Truncation = fyne.TextTruncateClip
-			inlineStatus := widget.NewLabel("status")
-			meta := widget.NewLabel("schedule")
-			status := widget.NewLabel("status")
-			applyRowMode(inlineStatus, meta, status)
-			nameLine := container.NewBorder(nil, nil, nil, inlineStatus, name)
-			return container.New(layout.NewCustomPaddedVBoxLayout(rowOverlap()), nameLine, meta, status)
-		},
-		func(id widget.ListItemID, item fyne.CanvasObject) {
-			row := item.(*fyne.Container)
-			// NewBorder keeps the center object first and appends the border slots
-			// after it, so nameLine is [name, inlineStatus].
-			nameLine := row.Objects[0].(*fyne.Container)
-			name := nameLine.Objects[0].(*widget.Label)
-			inlineStatus := nameLine.Objects[1].(*widget.Label)
-			meta := row.Objects[1].(*widget.Label)
-			status := row.Objects[2].(*widget.Label)
 
-			current := jobs[filteredJobs[id]]
+// assemble puts the sidebar (global controls, folder filter, toolbar, list) and
-			name.SetText(current.Name)
+// the details pane into the master/detail split the tab shows.
-			// Keep each row compact: folder, schedule, and command are shown in one
+func (v *jobsView) assemble(globalControls fyne.CanvasObject) fyne.CanvasObject {
-			// metadata line so the left pane stays useful even with many jobs.
-			meta.SetText(app.DisplayFolder(current.Folder) + "    " + current.Schedule + "    " + app.DisplayInvocation(current))
-			statusText := app.StatusText(current, runtimes[current.ID])
-			status.SetText(statusText)
-			inlineStatus.SetText(statusText)
-			// A full Refresh reuses rows built under the previous mode, so
-			// visibility cannot be left to the create callback alone.
-			applyRowMode(inlineStatus, meta, status)
-		},
-	)
-	list.OnSelected = func(id widget.ListItemID) {
-		if id < 0 || id >= len(filteredJobs) {
-			updateDetails(-1)
-			return
-		}
-		updateDetails(filteredJobs[id])
-	}
-	if len(filteredJobs) > 0 && selected >= 0 {
-		list.Select(app.DisplayIndex(filteredJobs, selected))
-	}
-
-	folderSelect = widget.NewSelect(folderOptions(jobs), func(value string) {
-		if value == "" {
-			return
-		}
-		selectedFolder = value
-		filteredJobs = filteredJobIndexes(jobs, selectedFolder)
-		if len(filteredJobs) == 0 {
-			// The "No folder" filter is intentionally allowed to be empty. It is a
-			// real filter choice, not an error state, so the selection is cleared.
-			// This path returns without reaching refreshView(), so it is the one
-			// place the list has to be redrawn by hand.
-			selected = -1
-			updateDetails(-1)
-			list.Refresh()
-			return
-		}
-		selected = filteredJobs[0]
-		list.Select(0)
-		refreshView()
-	})
-	folderSelect.SetSelected(selectedFolder)
-
-	// viewToggleIcon pairs with viewToggleText: both name the action the button
-	// performs, not the state it is in, matching stopAllButton's convention.
-	viewToggleIcon := func(current domain.JobListView) fyne.Resource {
-		if current.IsCompact() {
-			return theme.ViewFullScreenIcon()
-		}
-		return theme.ListIcon()
-	}
-	viewButton := widget.NewButtonWithIcon(viewToggleText(listView), viewToggleIcon(listView), nil)
-	viewButton.OnTapped = func() {
-		next := nextJobListView(listView)
-		listView = next
-		if err := svc.SetJobListView(next); err != nil {
-			// Roll the mode back and leave the button as it was, so the button
-			// never claims a preference that did not reach disk.
-			listView = nextJobListView(next)
-			dialog.ShowError(err, w)
-			return
-		}
-		viewButton.SetText(viewToggleText(listView))
-		viewButton.SetIcon(viewToggleIcon(listView))
-		// Refresh re-creates the row template, which is what recomputes the
-		// cached row height for the new mode. Selection is untouched.
-		list.Refresh()
-	}
-
-	addButton := widget.NewButtonWithIcon("New job", theme.ContentAddIcon(), func() {
-		showJobDialog(w, "New job", job{Schedule: "@every 1m", Command: "echo GoSentry job ran", Enabled: true}, func(saved job) {
-			created, err := svc.CreateJob(saved)
-			if err != nil {
-				dialog.ShowError(err, w)
-				return
-			}
-			syncFromService()
-			folderSelect.Options = folderOptions(jobs)
-			folderSelect.Refresh()
-			targetFolder := filterValue(created.Folder)
-			if selectedFolder != allFolders && selectedFolder != targetFolder {
-				selectedFolder = targetFolder
-				folderSelect.SetSelected(targetFolder)
-			}
-			selected = indexOfID(jobs, created.ID)
-			filteredJobs = filteredJobIndexes(jobs, selectedFolder)
-			list.Select(app.DisplayIndex(filteredJobs, selected))
-			refreshView()
-		})
-	})
-	editButton := widget.NewButtonWithIcon("Edit", theme.DocumentCreateIcon(), func() {
-		if selected < 0 || selected >= len(jobs) {
-			return
-		}
-		showJobDialog(w, "Edit job", jobs[selected], func(saved job) {
-			saved.ID = jobs[selected].ID
-			if err := svc.UpdateJob(saved); err != nil {
-				dialog.ShowError(err, w)
-				return
-			}
-			syncFromService()
-			folderSelect.Options = folderOptions(jobs)
-			folderSelect.Refresh()
-			refreshView()
-		})
-	})
-	runButton := widget.NewButtonWithIcon("Run now", theme.MediaPlayIcon(), func() {
-		if selected < 0 || selected >= len(jobs) {
-			return
-		}
-		// A manual run is allowed even while the scheduler is paused: pause only
-		// stops automatic scheduled runs, not the user's explicit "Run now".
-		if err := svc.RunNow(jobs[selected].ID); err != nil {
-			dialog.ShowError(err, w)
-			return
-		}
-		refreshView()
-	})
-
-	stopAllText, stopAllIcon := "Disable auto", theme.MediaPauseIcon()
-	if schedulerPaused {
-		stopAllText, stopAllIcon = "Enable auto", theme.MediaPlayIcon()
-	}
-	schedulerStateText := "Scheduler running"
-	if schedulerPaused {
-		schedulerStateText = "Scheduler paused"
-	}
-	schedulerState := widget.NewLabel(schedulerStateText)
-	stopAllButton := widget.NewButtonWithIcon(stopAllText, stopAllIcon, nil)
-	stopAllButton.OnTapped = func() {
-		// SetGlobalPause flips the pause flag, updates every job's next-run text,
-		// and emits the activity record the observer logs. Revert if the save fails.
-		schedulerPaused = !schedulerPaused
-		if err := svc.SetGlobalPause(schedulerPaused); err != nil {
-			schedulerPaused = !schedulerPaused
-			dialog.ShowError(err, w)
-			return
-		}
-		if schedulerPaused {
-			schedulerState.SetText("Scheduler paused")
-			stopAllButton.SetText("Enable auto")
-			stopAllButton.SetIcon(theme.MediaPlayIcon())
-		} else {
-			schedulerState.SetText("Scheduler running")
-			stopAllButton.SetText("Disable auto")
-			stopAllButton.SetIcon(theme.MediaPauseIcon())
-		}
-		refreshView()
-	}
-	pauseButton := widget.NewButtonWithIcon("Pause", theme.MediaPauseIcon(), func() {
-		if selected < 0 || selected >= len(jobs) {
-			return
-		}
-		current := jobs[selected]
-		if err := svc.SetEnabled(current.ID, !current.Enabled); err != nil {
-			dialog.ShowError(err, w)
-			return
-		}
-		refreshView()
-	})
-	deleteButton := widget.NewButtonWithIcon("Delete", theme.DeleteIcon(), func() {
-		if selected < 0 || selected >= len(jobs) {
-			return
-		}
-		deleted := jobs[selected]
-		// Deletion is confirmed because jobs can represent real system actions.
-		// There is no undo yet, so accidental removal should require one more click.
-		dialog.ShowConfirm("Delete job", fmt.Sprintf("Delete %q?", deleted.Name), func(confirm bool) {
-			if !confirm {
-				return
-			}
-			if err := svc.DeleteJob(deleted.ID); err != nil {
-				dialog.ShowError(err, w)
-				return
-			}
-			syncFromService()
-			folderSelect.Options = folderOptions(jobs)
-			folderSelect.Refresh()
-			filteredJobs = filteredJobIndexes(jobs, selectedFolder)
-			if len(filteredJobs) == 0 && selectedFolder != allFolders {
-				selectedFolder = allFolders
-				folderSelect.SetSelected(allFolders)
-				filteredJobs = filteredJobIndexes(jobs, selectedFolder)
-			}
-			if len(filteredJobs) == 0 {
-				selected = -1
-			} else {
-				selected = filteredJobs[0]
-			}
-			if selected >= 0 {
-				list.Select(app.DisplayIndex(filteredJobs, selected))
-			}
-			refreshView()
-		}, w)
-	})
-
-	toolbar := container.NewHBox(addButton, editButton, runButton, pauseButton, deleteButton, layout.NewSpacer())
-	globalControls := container.NewHBox(stopAllButton, schedulerState, layout.NewSpacer())
 	// The whole filter is one row: caption on the left, view toggle on the right,
 	// select filling what is left. The border layout gives both edges their
 	// MinSize, so the header is a line shorter than a stacked caption would make it.
 	folderCaption := widget.NewLabelWithStyle("Folder", fyne.TextAlignLeading, fyne.TextStyle{Bold: true})
-	filterRow := container.NewBorder(nil, nil, folderCaption, viewButton, folderSelect)
+	filterRow := container.NewBorder(nil, nil, folderCaption, v.viewButton, v.folderSelect)
-	sidebarHeader := container.NewVBox(globalControls, widget.NewSeparator(), filterRow, toolbar)
+	sidebarHeader := container.NewVBox(globalControls, widget.NewSeparator(), filterRow, v.newToolbar())
-	sidebar := container.NewBorder(sidebarHeader, nil, nil, nil, list)
+	sidebar := container.NewBorder(sidebarHeader, nil, nil, nil, v.list)
 
-	panel := container.NewBorder(nil, nil, sidebar, nil, container.NewPadded(dp.container()))
+	// A split rather than a Border left slot: the border pinned the sidebar at its
-	return panel, refreshView
+	// MinSize forever, so the user could never trade list width for detail width.
+	// The divider lets either pane grow, and neither can be dragged below its own
+	// content minimum.
+	panel := container.NewHSplit(sidebar, container.NewPadded(v.dp.container()))
+	panel.SetOffset(initialSplitOffset(sidebar.MinSize().Width))
+	return panel
+}
+
+// newFolderSelect builds the folder filter. Selecting a folder narrows the list
+// and, when the selected job is no longer visible, moves the selection to the
+// first row that is (see jobsViewState.applyFilter).
+func (v *jobsView) newFolderSelect() *widget.Select {
+	return widget.NewSelect(folderOptions(v.state.jobs), func(value string) {
+		if value == "" {
+			return
+		}
+		v.state.applyFilter(value)
+		v.refresh()
+	})
+}
+
+// newGlobalControls builds the pause control row that sits above the filter.
+func (v *jobsView) newGlobalControls() fyne.CanvasObject {
+	v.schedulerState = widget.NewLabel("")
+	v.stopAllButton = widget.NewButtonWithIcon("", nil, nil)
+	v.applySchedulerState(v.paused)
+	v.stopAllButton.OnTapped = func() {
+		// SetGlobalPause flips the pause flag, updates every job's next-run text,
+		// and emits the activity record the observer logs. refresh re-derives the
+		// pause state from the Service, so a failed save leaves the control showing
+		// what actually happened.
+		if err := v.svc.SetGlobalPause(!v.paused); err != nil {
+			dialog.ShowError(err, v.w)
+			return
+		}
+		v.refresh()
+	}
+	// The row sits directly under the tab bar with no AppTabs inset, while the
+	// default VBox gap below it is one theme padding — add the same on top so
+	// the button is not flush against the tabs.
+	return container.New(
+		layout.NewCustomPaddedLayout(theme.Padding(), 0, 0, 0),
+		container.NewHBox(v.stopAllButton, v.schedulerState, layout.NewSpacer()),
+	)
+}
+
+// applySchedulerState is the one place that draws the pause control and its
+// status text from a pause value, so refresh can drive it from whatever the
+// Service reports instead of only the tap handler mirroring its own toggle.
+func (v *jobsView) applySchedulerState(paused bool) {
+	v.paused = paused
+	if paused {
+		v.schedulerState.SetText("Scheduler paused")
+		v.stopAllButton.SetText("Enable auto")
+		v.stopAllButton.SetIcon(theme.MediaPlayIcon())
+		return
+	}
+	v.schedulerState.SetText("Scheduler running")
+	v.stopAllButton.SetText("Disable auto")
+	v.stopAllButton.SetIcon(theme.MediaPauseIcon())
 }

src/ui/jobs_view_details.go

@@ -60,6 +60,12 @@ func newDetailsPanel(firstJob job, rt *domain.JobRuntime, globalOverlapPolicy do
 	// The height here is only a floor: the scroll grows to fill whatever space the
 	// border layout gives it, so keep the minimum small so the whole window can be
 	// shrunk on short (720p) screens. Long output stays reachable by scrolling.
+	// The width, unlike the height, is load-bearing outside this widget: it is the
+	// details pane's widest minimum, so it is also what keeps the metadata value
+	// column non-empty — captionValueLayout hands the value whatever is left after
+	// the caption and has no floor of its own (see its comment in layout.go).
+	// Lowering it narrows those values with nothing to warn about it; the user can
+	// only widen them, by dragging the jobs split divider left.
 	d.commandOutputScroll.SetMinSize(fyne.NewSize(460, 70))
 	d.logs = widget.NewList(
 		func() int { return len(d.selectedLogs) },

src/ui/jobs_view_helpers.go

@@ -8,7 +8,7 @@ import (
 
 // lastJobLogs returns a fresh slice of the most recent activity entries for the
 // "Selected job activity" panel. Logs are stored newest-first (see
-// app.Service.recordRun), so the leading entries are the latest; the result is
+// app.prependLog), so the leading entries are the latest; the result is
 // capped at maxJobActivityRows.
 func lastJobLogs(logs []event) []event {
 	n := len(logs)

src/ui/jobs_view_list.go

@@ -0,0 +1,114 @@
+package ui
+
+import (
+	"gitea.mixdep.ru/mix/gosentry/src/app"
+	"gitea.mixdep.ru/mix/gosentry/src/domain"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/dialog"
+	"fyne.io/fyne/v2/layout"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+)
+
+// newList builds the sidebar's job list. Rows are drawn from jobsViewState's
+// filtered view, so the row index the widget reports is a position in the
+// filter, never an index into the job snapshot.
+func (v *jobsView) newList() *widget.List {
+	list := widget.NewList(
+		func() int { return len(v.state.filtered) },
+		func() fyne.CanvasObject {
+			name := widget.NewLabelWithStyle("Job name", fyne.TextAlignLeading, fyne.TextStyle{Bold: true})
+			// Truncating stops a long name from pushing the compact row's status
+			// off the right-hand edge. Labels default to TextWrapOff, which grows
+			// the widget to fit instead.
+			name.Truncation = fyne.TextTruncateClip
+			inlineStatus := widget.NewLabel("status")
+			meta := widget.NewLabel("schedule")
+			status := widget.NewLabel("status")
+			v.applyRowMode(inlineStatus, meta, status)
+			nameLine := container.NewBorder(nil, nil, nil, inlineStatus, name)
+			return container.New(layout.NewCustomPaddedVBoxLayout(rowOverlap()), nameLine, meta, status)
+		},
+		func(id widget.ListItemID, item fyne.CanvasObject) {
+			current, ok := v.state.jobAt(int(id))
+			if !ok {
+				return
+			}
+			row := item.(*fyne.Container)
+			// NewBorder keeps the center object first and appends the border slots
+			// after it, so nameLine is [name, inlineStatus].
+			nameLine := row.Objects[0].(*fyne.Container)
+			name := nameLine.Objects[0].(*widget.Label)
+			inlineStatus := nameLine.Objects[1].(*widget.Label)
+			meta := row.Objects[1].(*widget.Label)
+			status := row.Objects[2].(*widget.Label)
+
+			name.SetText(current.Name)
+			// Keep each row compact: folder, schedule, and command are shown in one
+			// metadata line so the left pane stays useful even with many jobs.
+			meta.SetText(app.DisplayFolder(current.Folder) + "    " + current.Schedule + "    " + app.DisplayInvocation(current))
+			statusText := app.StatusText(current, v.state.runtime(current.ID))
+			status.SetText(statusText)
+			inlineStatus.SetText(statusText)
+			// A full Refresh reuses rows built under the previous mode, so
+			// visibility cannot be left to the create callback alone.
+			v.applyRowMode(inlineStatus, meta, status)
+		},
+	)
+	list.OnSelected = func(id widget.ListItemID) {
+		v.state.selectRow(int(id))
+		v.updateDetails()
+	}
+	return list
+}
+
+// applyRowMode expresses the current view mode as visibility on the row's
+// four labels. widget.List caches the row template's MinSize, and
+// list.Refresh() re-creates the template and recomputes it, so hiding lines
+// is what actually shrinks the rows: layout.NewCustomPaddedVBoxLayout and the
+// border layout both skip hidden children when measuring.
+func (v *jobsView) applyRowMode(inlineStatus, meta, status fyne.CanvasObject) {
+	if v.listView.IsCompact() {
+		inlineStatus.Show()
+		meta.Hide()
+		status.Hide()
+		return
+	}
+	inlineStatus.Hide()
+	meta.Show()
+	status.Show()
+}
+
+// newViewToggle builds the compact/detailed switch that sits at the right edge
+// of the filter row.
+func (v *jobsView) newViewToggle() *widget.Button {
+	button := widget.NewButtonWithIcon(viewToggleText(v.listView), viewToggleIcon(v.listView), nil)
+	button.OnTapped = func() {
+		next := nextJobListView(v.listView)
+		v.listView = next
+		if err := v.svc.SetJobListView(next); err != nil {
+			// Roll the mode back and leave the button as it was, so the button
+			// never claims a preference that did not reach disk.
+			v.listView = nextJobListView(next)
+			dialog.ShowError(err, v.w)
+			return
+		}
+		button.SetText(viewToggleText(v.listView))
+		button.SetIcon(viewToggleIcon(v.listView))
+		// Refresh re-creates the row template, which is what recomputes the
+		// cached row height for the new mode. Selection is untouched.
+		v.list.Refresh()
+	}
+	return button
+}
+
+// viewToggleIcon pairs with viewToggleText: both name the action the button
+// performs, not the state it is in, matching stopAllButton's convention.
+func viewToggleIcon(current domain.JobListView) fyne.Resource {
+	if current.IsCompact() {
+		return theme.ViewFullScreenIcon()
+	}
+	return theme.ListIcon()
+}

src/ui/jobs_view_state.go

@@ -0,0 +1,156 @@
+package ui
+
+import (
+	"gitea.mixdep.ru/mix/gosentry/src/app"
+	"gitea.mixdep.ru/mix/gosentry/src/domain"
+)
+
+// jobsViewState is the model behind the Jobs tab: the snapshot of the Service's
+// jobs and runtimes, the folder filter, and the selection. The widgets in
+// jobsView read it and never keep a second copy of any of it.
+//
+// The selection is a job ID, not an index into the snapshot. Every path that
+// changes the job list replaces that snapshot underneath the view — create,
+// delete, and edit do it from this view's own handlers, but adopting a different
+// jobs file does it from the Service, and the view only learns about it through
+// the refresh that JobsLoaded triggers. An index that outlives its snapshot then
+// points at whichever job happens to sit there now, so the details pane
+// describes one job while the list highlights another. Indexes are derived from
+// the ID at render time instead (selectedIndex, displayRow).
+type jobsViewState struct {
+	svc      *app.Service
+	jobs     []job
+	runtimes map[int]*domain.JobRuntime
+	folder   string
+	// selectedID is 0 when nothing is selected; job IDs start at 1.
+	selectedID int
+	// filtered holds the indexes into jobs that the folder filter shows, in list
+	// row order: filtered[row] is the index of the job drawn in that row.
+	filtered []int
+}
+
+func newJobsViewState(svc *app.Service) *jobsViewState {
+	s := &jobsViewState{
+		svc:      svc,
+		runtimes: map[int]*domain.JobRuntime{},
+		folder:   allFolders,
+	}
+	s.sync()
+	return s
+}
+
+// sync re-reads the Service snapshot, re-applies the folder filter, and
+// re-resolves the selection against the new list. It is the only place the view
+// reads job state from the Service.
+func (s *jobsViewState) sync() {
+	s.jobs = s.svc.Jobs()
+	clear(s.runtimes)
+	for _, current := range s.jobs {
+		if rt := s.svc.Runtime(current.ID); rt != nil {
+			s.runtimes[current.ID] = rt
+		}
+	}
+	s.filtered = filteredJobIndexes(s.jobs, s.folder)
+	s.resolveSelection()
+}
+
+// applyFilter switches the folder filter, keeping the current selection when the
+// new filter still shows it. A filter that matches nothing — "No folder" with no
+// such job — is a real filter choice, not an error state, so it simply leaves
+// nothing selected.
+func (s *jobsViewState) applyFilter(folder string) {
+	s.folder = folder
+	s.filtered = filteredJobIndexes(s.jobs, s.folder)
+	if !s.visible(s.selectedID) {
+		s.selectedID = 0
+	}
+	s.resolveSelection()
+}
+
+// resolveSelection drops a selection whose job is gone and falls back to the
+// first visible row, so the details pane never describes a job the current
+// snapshot no longer holds.
+func (s *jobsViewState) resolveSelection() {
+	if s.selectedID != 0 && indexOfID(s.jobs, s.selectedID) < 0 {
+		s.selectedID = 0
+	}
+	if s.selectedID == 0 && len(s.filtered) > 0 {
+		s.selectedID = s.jobs[s.filtered[0]].ID
+	}
+}
+
+// selectByID records the selection directly, for handlers that know the job they
+// want selected (a newly created job, for instance) rather than its row.
+func (s *jobsViewState) selectByID(id int) {
+	s.selectedID = id
+}
+
+// selectRow records the selection from a list row, which is what widget.List
+// reports through OnSelected.
+func (s *jobsViewState) selectRow(row int) {
+	current, ok := s.jobAt(row)
+	if !ok {
+		s.selectedID = 0
+		return
+	}
+	s.selectedID = current.ID
+}
+
+// selected returns the selected job, or false when nothing is selected.
+func (s *jobsViewState) selected() (job, bool) {
+	index := s.selectedIndex()
+	if index < 0 {
+		return job{}, false
+	}
+	return s.jobs[index], true
+}
+
+// selectedIndex resolves the selected ID to an index into the current snapshot,
+// or -1 when nothing is selected.
+func (s *jobsViewState) selectedIndex() int {
+	if s.selectedID == 0 {
+		return -1
+	}
+	return indexOfID(s.jobs, s.selectedID)
+}
+
+// displayRow maps the selection onto a list row, or -1 when nothing is selected
+// or the filter hides the selected job — so a caller unselects rather than
+// highlighting an unrelated row.
+func (s *jobsViewState) displayRow() int {
+	index := s.selectedIndex()
+	if index < 0 || !s.visible(s.selectedID) {
+		return -1
+	}
+	return app.DisplayIndex(s.filtered, index)
+}
+
+// jobAt returns the job drawn in the given list row.
+func (s *jobsViewState) jobAt(row int) (job, bool) {
+	if row < 0 || row >= len(s.filtered) {
+		return job{}, false
+	}
+	return s.jobs[s.filtered[row]], true
+}
+
+// runtime returns a job's runtime, or an empty one when the Service has none
+// yet, so callers can read it without a nil check.
+func (s *jobsViewState) runtime(id int) *domain.JobRuntime {
+	if rt := s.runtimes[id]; rt != nil {
+		return rt
+	}
+	return &domain.JobRuntime{}
+}
+
+// visible reports whether the folder filter shows the given job.
+func (s *jobsViewState) visible(id int) bool {
+	if id == 0 {
+		return false
+	}
+	for _, index := range s.filtered {
+		if s.jobs[index].ID == id {
+			return true
+		}
+	}
+	return false
+}

src/ui/jobs_view_state_test.go

@@ -0,0 +1,198 @@
+package ui
+
+import (
+	"testing"
+
+	"gitea.mixdep.ru/mix/gosentry/src/app"
+	"gitea.mixdep.ru/mix/gosentry/src/domain"
+)
+
+// newStateForTest builds a jobsViewState over a Service holding the given jobs.
+// No Fyne app is needed: the state is the view's model and touches no widgets.
+func newStateForTest(t *testing.T, jobs []domain.Job) (*jobsViewState, *app.Service) {
+	t.Helper()
+	svc := app.NewService(newTestStore(t), jobs)
+	t.Cleanup(svc.Stop)
+	return newJobsViewState(svc), svc
+}
+
+func threeJobs() []domain.Job {
+	return []domain.Job{
+		{ID: 1, Name: "First", Folder: "Maintenance", Schedule: "@every 1m", Command: "echo one", Enabled: true},
+		{ID: 2, Name: "Second", Schedule: "@every 2m", Command: "echo two", Enabled: true},
+		{ID: 3, Name: "Third", Folder: "Reports", Schedule: "@every 3m", Command: "echo three", Enabled: true},
+	}
+}
+
+func selectedName(t *testing.T, s *jobsViewState) string {
+	t.Helper()
+	current, ok := s.selected()
+	if !ok {
+		return ""
+	}
+	return current.Name
+}
+
+// TestJobsViewStateSelectsTheFirstJob pins the opening state: the first row is
+// selected so the details pane is never blank when there is something to show.
+func TestJobsViewStateSelectsTheFirstJob(t *testing.T) {
+	s, _ := newStateForTest(t, threeJobs())
+	if got := selectedName(t, s); got != "First" {
+		t.Errorf("selected job = %q, want %q", got, "First")
+	}
+	if got := s.displayRow(); got != 0 {
+		t.Errorf("displayRow = %d, want 0", got)
+	}
+}
+
+func TestJobsViewStateEmptyListSelectsNothing(t *testing.T) {
+	s, _ := newStateForTest(t, nil)
+	if _, ok := s.selected(); ok {
+		t.Error("an empty job list should leave nothing selected")
+	}
+	if got := s.displayRow(); got != -1 {
+		t.Errorf("displayRow with nothing selected = %d, want -1", got)
+	}
+}
+
+// TestJobsViewStateSelectionFollowsTheJobNotTheRow is the regression guard for
+// the selection defect: the selection is a job ID, so a job removed above the
+// selected one must not slide the selection onto its neighbour. The deletion
+// goes through the Service rather than the Delete button, which is how the view
+// learns about a job list that changed underneath it (a different jobs file
+// adopted, or any other broad JobChanged).
+func TestJobsViewStateSelectionFollowsTheJobNotTheRow(t *testing.T) {
+	s, svc := newStateForTest(t, threeJobs())
+
+	s.selectRow(2)
+	if got := selectedName(t, s); got != "Third" {
+		t.Fatalf("selected job after selecting row 2 = %q, want %q", got, "Third")
+	}
+
+	if err := svc.DeleteJob(1); err != nil {
+		t.Fatalf("DeleteJob: %v", err)
+	}
+	s.sync()
+
+	if got := selectedName(t, s); got != "Third" {
+		t.Errorf("selected job after the first job was removed = %q, want it still on %q", got, "Third")
+	}
+	if got := s.displayRow(); got != 1 {
+		t.Errorf("displayRow = %d, want the row %q moved to (1)", got, "Third")
+	}
+}
+
+// TestJobsViewStateDropsSelectionWhenItsJobIsGone covers the other half: a
+// selected job that no longer exists falls back to the first visible row instead
+// of describing whichever job inherited its position.
+func TestJobsViewStateDropsSelectionWhenItsJobIsGone(t *testing.T) {
+	s, svc := newStateForTest(t, threeJobs())
+
+	s.selectRow(1)
+	if err := svc.DeleteJob(2); err != nil {
+		t.Fatalf("DeleteJob: %v", err)
+	}
+	s.sync()
+
+	if got := selectedName(t, s); got != "First" {
+		t.Errorf("selected job after deleting the selected one = %q, want the fallback %q", got, "First")
+	}
+}
+
+func TestJobsViewStateApplyFilter(t *testing.T) {
+	s, _ := newStateForTest(t, threeJobs())
+
+	// The selected job is in the folder being filtered to, so it stays selected.
+	s.selectRow(2)
+	s.applyFilter("Reports")
+	if got := selectedName(t, s); got != "Third" {
+		t.Errorf("selection after filtering to its own folder = %q, want %q", got, "Third")
+	}
+	if got := s.displayRow(); got != 0 {
+		t.Errorf("displayRow inside the filter = %d, want 0", got)
+	}
+
+	// Filtering to a folder that hides it moves the selection to the first row
+	// that folder does show.
+	s.applyFilter("Maintenance")
+	if got := selectedName(t, s); got != "First" {
+		t.Errorf("selection after filtering it away = %q, want %q", got, "First")
+	}
+
+	// "No folder" matches the one job without one.
+	s.applyFilter(noFolder)
+	if got := selectedName(t, s); got != "Second" {
+		t.Errorf("selection under the %q filter = %q, want %q", noFolder, got, "Second")
+	}
+
+	s.applyFilter(allFolders)
+	if got := len(s.filtered); got != 3 {
+		t.Errorf("rows under %q = %d, want 3", allFolders, got)
+	}
+}
+
+// TestJobsViewStateEmptyFilterSelectsNothing pins that a filter matching no job
+// is a filter choice, not an error state: nothing is selected, and nothing is
+// highlighted either.
+func TestJobsViewStateEmptyFilterSelectsNothing(t *testing.T) {
+	s, _ := newStateForTest(t, []domain.Job{
+		{ID: 1, Name: "First", Folder: "Maintenance", Schedule: "@every 1m", Command: "echo one", Enabled: true},
+	})
+
+	s.applyFilter(noFolder)
+	if _, ok := s.selected(); ok {
+		t.Error("a filter that matches nothing should leave nothing selected")
+	}
+	if got := s.displayRow(); got != -1 {
+		t.Errorf("displayRow under an empty filter = %d, want -1", got)
+	}
+
+	// The selection comes back when the filter does.
+	s.applyFilter(allFolders)
+	if got := selectedName(t, s); got != "First" {
+		t.Errorf("selection after clearing the filter = %q, want %q", got, "First")
+	}
+}
+
+// TestJobsViewStateHiddenSelectionIsNotHighlighted covers the case the list
+// widget cannot express: the selected job still exists but the filter hides it,
+// so there is no row to highlight and displayRow must say so rather than fall
+// back to row 0.
+func TestJobsViewStateHiddenSelectionIsNotHighlighted(t *testing.T) {
+	s, _ := newStateForTest(t, threeJobs())
+
+	s.applyFilter("Maintenance")
+	// Selecting by ID is how the create handler points the view at a job it just
+	// made; here it reaches the state a hidden-but-selected job would be in.
+	s.selectByID(3)
+	if s.visible(3) {
+		t.Fatal("job 3 should be hidden by the Maintenance filter")
+	}
+	if got := s.displayRow(); got != -1 {
+		t.Errorf("displayRow for a hidden selection = %d, want -1", got)
+	}
+	if got := selectedName(t, s); got != "Third" {
+		t.Errorf("selected job = %q, want it still %q", got, "Third")
+	}
+}
+
+func TestJobsViewStateRuntimeIsNeverNil(t *testing.T) {
+	s, _ := newStateForTest(t, threeJobs())
+	if rt := s.runtime(99); rt == nil {
+		t.Error("runtime for an unknown job returned nil, want an empty runtime")
+	}
+}
+
+func TestJobsViewStateJobAtRejectsRowsOutsideTheFilter(t *testing.T) {
+	s, _ := newStateForTest(t, threeJobs())
+	s.applyFilter("Reports")
+	if current, ok := s.jobAt(0); !ok || current.Name != "Third" {
+		t.Errorf("jobAt(0) = (%q, %v), want (%q, true)", current.Name, ok, "Third")
+	}
+	if _, ok := s.jobAt(1); ok {
+		t.Error("jobAt past the last filtered row should report no job")
+	}
+	if _, ok := s.jobAt(-1); ok {
+		t.Error("jobAt(-1) should report no job")
+	}
+}

src/ui/jobs_view_test.go

@@ -1,12 +1,16 @@
 package ui
 
 import (
+	"encoding/json"
+	"os"
+	"path/filepath"
 	"testing"
 
 	"gitea.mixdep.ru/mix/gosentry/src/app"
 	"gitea.mixdep.ru/mix/gosentry/src/domain"
 
 	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/test"
 	"fyne.io/fyne/v2/widget"
 )
@@ -55,48 +59,43 @@ func TestFolderOptionsAppendsUniqueFolders(t *testing.T) {
 	}
 }
 
-func TestFilteredJobIndexesAll(t *testing.T) {
+func TestFilteredJobIndexes(t *testing.T) {
-	jobs := []domain.Job{
-		{Folder: "Maintenance"},
-		{Folder: ""},
-		{Folder: "Reports"},
-	}
-	got := filteredJobIndexes(jobs, allFolders)
-	if len(got) != 3 {
-		t.Errorf("allFolders filter: got %d indexes, want 3", len(got))
-	}
-}
-
-func TestFilteredJobIndexesByNamedFolder(t *testing.T) {
 	jobs := []domain.Job{
 		{Folder: "Maintenance"}, // index 0
-		{Folder: ""},            // index 1
+		{Folder: ""},            // index 1 — no folder
 		{Folder: "Maintenance"}, // index 2
 		{Folder: "Reports"},     // index 3
+		{Folder: "  "},          // index 4 — blank reads as no folder
 	}
-	got := filteredJobIndexes(jobs, "Maintenance")
+	cases := []struct {
-	if len(got) != 2 || got[0] != 0 || got[1] != 2 {
+		name   string
-		t.Errorf("Maintenance filter: got %v, want [0 2]", got)
+		jobs   []domain.Job
+		filter string
+		want   []int
+	}{
+		{"all folders", jobs, allFolders, []int{0, 1, 2, 3, 4}},
+		{"named folder", jobs, "Maintenance", []int{0, 2}},
+		{"no folder", jobs, noFolder, []int{1, 4}},
+		{"empty job list", nil, allFolders, nil},
+	}
+	for _, tc := range cases {
+		got := filteredJobIndexes(tc.jobs, tc.filter)
+		if !sameIndexes(got, tc.want) {
+			t.Errorf("%s: filteredJobIndexes(_, %q) = %v, want %v", tc.name, tc.filter, got, tc.want)
+		}
 	}
 }
 
-func TestFilteredJobIndexesNoFolder(t *testing.T) {
+func sameIndexes(got, want []int) bool {
-	jobs := []domain.Job{
+	if len(got) != len(want) {
-		{Folder: "Maintenance"}, // index 0 — excluded
+		return false
-		{Folder: ""},            // index 1 — no folder → included
-		{Folder: "  "},          // index 2 — blank → included
 	}
-	got := filteredJobIndexes(jobs, noFolder)
+	for i := range got {
-	if len(got) != 2 || got[0] != 1 || got[1] != 2 {
+		if got[i] != want[i] {
-		t.Errorf("noFolder filter: got %v, want [1 2]", got)
+			return false
-	}
+		}
-}
-
-func TestFilteredJobIndexesEmptySlice(t *testing.T) {
-	got := filteredJobIndexes(nil, allFolders)
-	if len(got) != 0 {
-		t.Errorf("empty job list should return empty indexes, got %v", got)
 	}
+	return true
 }
 
 func TestNextJobListViewFlipsBothWays(t *testing.T) {
@@ -135,19 +134,24 @@ func findFirst(root fyne.CanvasObject, match func(fyne.CanvasObject) bool) fyne.
 	return nil
 }
 
+// jobsSplit returns the view's master/detail split. newJobsView assembles the
+// panel as container.NewHSplit(sidebar, details), so the two panes are reached
+// through Leading and Trailing.
+func jobsSplit(t *testing.T, content fyne.CanvasObject) *container.Split {
+	t.Helper()
+	split, ok := content.(*container.Split)
+	if !ok {
+		t.Fatal("jobs view is not the expected Split container")
+	}
+	return split
+}
+
 // jobsSidebar narrows the search to the left pane. The details panel has a
 // widget.List of its own (the activity log), so a search from the whole view
-// would find the wrong one. newJobsView assembles the panel as
+// would find the wrong one.
-// container.NewBorder(nil, nil, sidebar, nil, ...); NewBorder keeps the centre
-// object first and appends the border slots after it, so panel.Objects[1] is
-// the left (sidebar) slot.
 func jobsSidebar(t *testing.T, content fyne.CanvasObject) fyne.CanvasObject {
 	t.Helper()
-	panel, ok := content.(*fyne.Container)
+	return jobsSplit(t, content).Leading
-	if !ok || len(panel.Objects) < 2 {
-		t.Fatal("jobs view is not the expected Border container")
-	}
-	return panel.Objects[1]
 }
 
 func jobsList(t *testing.T, content fyne.CanvasObject) *widget.List {
@@ -193,15 +197,10 @@ func jobsToolbarButton(t *testing.T, content fyne.CanvasObject, text string) *wi
 	return found.(*widget.Button)
 }
 
-// jobsDetails narrows the search to the right pane. NewBorder keeps the centre
+// jobsDetails narrows the search to the right pane (see jobsSidebar).
-// object first, so panel.Objects[0] is the details pane (see jobsSidebar).
 func jobsDetails(t *testing.T, content fyne.CanvasObject) fyne.CanvasObject {
 	t.Helper()
-	panel, ok := content.(*fyne.Container)
+	return jobsSplit(t, content).Trailing
-	if !ok || len(panel.Objects) == 0 {
-		t.Fatal("jobs view is not the expected Border container")
-	}
-	return panel.Objects[0]
 }
 
 // jobsDetailsActivity returns the "Selected job activity" list, the only
@@ -347,9 +346,42 @@ func TestJobsSidebarWidthIsItsContent(t *testing.T) {
 	}
 }
 
+// TestJobsSplitOpensAtTheSidebarWidth is the guard for the derived initial
+// offset (F15): at the default window width the divider must open at the
+// sidebar's own width — enough that the toolbar is never born clipped, and no
+// more, since every extra pixel is taken from the details pane. Split's own
+// clamp guarantees the lower bound, so the upper bound is what actually proves
+// the offset was derived rather than left at the 0.5 default.
+func TestJobsSplitOpensAtTheSidebarWidth(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+	w := testApp.NewWindow("test")
+	defer w.Close()
+
+	store := newTestStore(t)
+	svc := app.NewService(store, nil)
+	defer svc.Stop()
+
+	content, _ := newJobsView(w, svc)
+	w.SetContent(content)
+
+	split := jobsSplit(t, content)
+	split.Resize(fyne.NewSize(defaultWindowWidth, defaultWindowHeight))
+
+	want := split.Leading.MinSize().Width
+	got := split.Leading.Size().Width
+	// One pixel of slack for the float32 round trip through the offset ratio.
+	if got < want || got > want+1 {
+		t.Errorf("leading pane opens at %v, want its content minimum %v", got, want)
+	}
+	if trailing := split.Trailing.Size().Width; trailing < split.Trailing.MinSize().Width {
+		t.Errorf("trailing pane opens at %v, below its minimum %v", trailing, split.Trailing.MinSize().Width)
+	}
+}
+
 // TestToolbarButtonRedrawsRowAndDetails is the regression guard for F12: the
 // toolbar handlers no longer re-read the service or refresh the list
-// themselves, so refreshView alone has to re-snapshot the jobs and repopulate
+// themselves, so jobsView.refresh alone has to re-snapshot the jobs and repopulate
 // the details pane. If it ever stops doing either, the row renders a stale
 // status and the details lose the selection — neither is a compile error.
 func TestToolbarButtonRedrawsRowAndDetails(t *testing.T) {
@@ -412,6 +444,78 @@ func TestToolbarButtonRedrawsRowAndDetails(t *testing.T) {
 	}
 }
 
+// TestJobsViewSelectionSurvivesAJobsFileSwitch is the view-level regression
+// guard for the selection defect. Adopting a different jobs file replaces the
+// whole list from the Service; the view only hears about it through the refresh
+// that JobsLoaded triggers, which is exactly what this test calls. With the
+// selection held as a row index, that refresh redrew the details pane from the
+// old index — describing whichever job now sat there, or clearing the pane when
+// the new list was shorter — while the list's highlight stayed where it was.
+func TestJobsViewSelectionSurvivesAJobsFileSwitch(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+	w := testApp.NewWindow("test")
+	defer w.Close()
+
+	store := newTestStore(t)
+	svc := app.NewService(store, []domain.Job{
+		{ID: 1, Name: "First", Schedule: "@every 1m", Command: "echo one", Enabled: true},
+		{ID: 2, Name: "Second", Schedule: "@every 2m", Command: "echo two", Enabled: true},
+		{ID: 3, Name: "Third", Schedule: "@every 3m", Command: "echo three", Enabled: true},
+	})
+	defer svc.Stop()
+
+	content, refresh := newJobsView(w, svc)
+	w.SetContent(content)
+
+	list := jobsList(t, content)
+	list.Select(2)
+	if got := jobsDetailsTitle(t, content); got != "Third" {
+		t.Fatalf("details title after selecting row 2 = %q, want %q", got, "Third")
+	}
+
+	// A second jobs file with different jobs and different IDs, so nothing about
+	// the old selection can resolve into the new list.
+	other := []domain.Job{
+		{ID: 10, Name: "Alpha", Schedule: "@every 1m", Command: "echo alpha", Enabled: true},
+		{ID: 11, Name: "Beta", Schedule: "@every 2m", Command: "echo beta", Enabled: true},
+	}
+	payload, err := json.Marshal(domain.JobsFile{Jobs: other})
+	if err != nil {
+		t.Fatalf("marshal jobs: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(store.Paths.AppDir, "other.json"), payload, 0o644); err != nil {
+		t.Fatalf("write jobs file: %v", err)
+	}
+	config := svc.Config()
+	config.JobsFile = "other.json"
+	if err := svc.UpdateSettings(config); err != nil {
+		t.Fatalf("UpdateSettings: %v", err)
+	}
+	refresh()
+
+	if got := jobsDetailsTitle(t, content); got != "Alpha" {
+		t.Errorf("details title after the switch = %q, want the first job of the new file %q", got, "Alpha")
+	}
+	if got := list.Length(); got != len(other) {
+		t.Fatalf("list length after the switch = %d, want %d", got, len(other))
+	}
+	// widget.List.Select returns without calling OnSelected when the row is
+	// already highlighted, so a silent Select(0) is what proves the highlight and
+	// the details pane are describing the same job.
+	reselected := false
+	inner := list.OnSelected
+	list.OnSelected = func(id widget.ListItemID) {
+		reselected = true
+		inner(id)
+	}
+	defer func() { list.OnSelected = inner }()
+	list.Select(0)
+	if reselected {
+		t.Error("row 0 was not the highlighted row after the switch, so the highlight and the details pane disagree")
+	}
+}
+
 // TestDetailCaptionWidthCoversEveryCaption is the guard that makes the single
 // metadataRows list self-enforcing (F10): every caption it returns must
 // measure no wider than captionColumnWidth's result for that same list, or a

src/ui/jobs_view_toolbar.go

@@ -0,0 +1,136 @@
+package ui
+
+import (
+	"fmt"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/dialog"
+	"fyne.io/fyne/v2/layout"
+	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
+)
+
+// newToolbar builds the per-job button row under the folder filter. Every
+// handler works from the selected job — never from a row index — and ends in
+// refresh, which is what re-reads the Service and redraws the row, the details
+// pane, and the list highlight.
+func (v *jobsView) newToolbar() fyne.CanvasObject {
+	return container.NewHBox(
+		v.newAddButton(),
+		v.newEditButton(),
+		v.newRunButton(),
+		v.newPauseButton(),
+		v.newDeleteButton(),
+		layout.NewSpacer(),
+	)
+}
+
+func (v *jobsView) newAddButton() *widget.Button {
+	return widget.NewButtonWithIcon("New job", theme.ContentAddIcon(), func() {
+		blank := job{Schedule: "@every 1m", Command: "echo GoSentry job ran", Enabled: true}
+		showJobDialog(v.w, "New job", blank, func(saved job) {
+			created, err := v.svc.CreateJob(saved)
+			if err != nil {
+				dialog.ShowError(err, v.w)
+				return
+			}
+			v.state.sync()
+			// The new job may have introduced a folder, so the options are rebuilt
+			// before the filter is pointed at it.
+			v.rebuildFolders()
+			v.state.selectByID(created.ID)
+			if target := filterValue(created.Folder); v.state.folder != allFolders && v.state.folder != target {
+				// The current filter would hide the job the user just created. Switch
+				// to its folder; SetSelected fires OnChanged, which applies the filter
+				// and refreshes.
+				v.folderSelect.SetSelected(target)
+			}
+			v.refresh()
+		})
+	})
+}
+
+func (v *jobsView) newEditButton() *widget.Button {
+	return widget.NewButtonWithIcon("Edit", theme.DocumentCreateIcon(), func() {
+		current, ok := v.state.selected()
+		if !ok {
+			return
+		}
+		showJobDialog(v.w, "Edit job", current, func(saved job) {
+			// The ID comes from the job the dialog was opened on, so a list that
+			// changed underneath the open dialog cannot redirect the save.
+			saved.ID = current.ID
+			if err := v.svc.UpdateJob(saved); err != nil {
+				dialog.ShowError(err, v.w)
+				return
+			}
+			v.state.sync()
+			// An edit can rename the job's folder, add a new one, or empty the last
+			// job out of an existing one.
+			v.rebuildFolders()
+			v.refresh()
+		})
+	})
+}
+
+func (v *jobsView) newRunButton() *widget.Button {
+	return widget.NewButtonWithIcon("Run now", theme.MediaPlayIcon(), func() {
+		current, ok := v.state.selected()
+		if !ok {
+			return
+		}
+		// A manual run is allowed even while the scheduler is paused: pause only
+		// stops automatic scheduled runs, not the user's explicit "Run now".
+		if err := v.svc.RunNow(current.ID); err != nil {
+			dialog.ShowError(err, v.w)
+			return
+		}
+		v.refresh()
+	})
+}
+
+func (v *jobsView) newPauseButton() *widget.Button {
+	return widget.NewButtonWithIcon("Pause", theme.MediaPauseIcon(), func() {
+		current, ok := v.state.selected()
+		if !ok {
+			return
+		}
+		if err := v.svc.SetEnabled(current.ID, !current.Enabled); err != nil {
+			dialog.ShowError(err, v.w)
+			return
+		}
+		v.refresh()
+	})
+}
+
+func (v *jobsView) newDeleteButton() *widget.Button {
+	return widget.NewButtonWithIcon("Delete", theme.DeleteIcon(), func() {
+		deleted, ok := v.state.selected()
+		if !ok {
+			return
+		}
+		// Deletion is confirmed because jobs can represent real system actions.
+		// There is no undo yet, so accidental removal should require one more click.
+		dialog.ShowConfirm("Delete job", fmt.Sprintf("Delete %q?", deleted.Name), func(confirm bool) {
+			if !confirm {
+				return
+			}
+			if err := v.svc.DeleteJob(deleted.ID); err != nil {
+				dialog.ShowError(err, v.w)
+				return
+			}
+			// sync drops the deleted job's selection and falls back to the first row
+			// the filter still shows.
+			v.state.sync()
+			v.rebuildFolders()
+			if len(v.state.filtered) == 0 && v.state.folder != allFolders {
+				// The deleted job was the last one in its folder, and that folder is
+				// no longer an option. Fall back to "All" rather than leaving the user
+				// on an empty filter they did not choose.
+				v.folderSelect.SetSelected(allFolders)
+			}
+			v.refresh()
+		}, v.w)
+	})
+}

src/ui/layout.go

@@ -2,6 +2,8 @@ package ui
 
 import (
 	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/layout"
 	"fyne.io/fyne/v2/theme"
 	"fyne.io/fyne/v2/widget"
 )
@@ -59,6 +61,36 @@ func (l minWidthLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
 // than hard-coded so it follows a theme that changes SizeNameInnerPadding.
 func rowOverlap() float32 { return -theme.InnerPadding() }
 
+// cancelRowOverlap exempts one row from the rowOverlap() spacing of the section
+// it sits in, by padding its top edge with exactly what rowOverlap takes away.
+// The overlap assumes both neighbours are text rows: each insets its text, so
+// one padding's worth is duplicated and can go. A row whose value paints its own
+// box to the row's edge — a Select, an Entry, a Button — has no such inset, so
+// the overlap eats the visible gap instead and the box ends up flush against the
+// row above it.
+func cancelRowOverlap(row fyne.CanvasObject) fyne.CanvasObject {
+	return container.New(layout.NewCustomPaddedLayout(-rowOverlap(), 0, 0, 0), row)
+}
+
+// initialSplitOffset returns the container.Split offset that opens a horizontal
+// split with its leading pane at the given natural width. SetOffset takes a
+// ratio, but a pane's natural width is absolute, so the ratio is derived from
+// the window width the app opens at rather than written as a literal: 0.44 fits
+// 1024 px but would hand a 448 px sidebar 700 px on a 1600 px-wide window.
+//
+// The divider sits between the panes and is excluded from the ratio, matching
+// container.Split's own arithmetic (its divider is two theme paddings thick).
+// Split clamps the offset to both panes' minimums when it lays out, so a result
+// that is slightly off — the window is a little wider than its content area —
+// costs at most a few pixels and can never clip either pane.
+func initialSplitOffset(leadingWidth float32) float64 {
+	available := float64(defaultWindowWidth - 2*theme.Padding())
+	if available <= 0 {
+		return 0
+	}
+	return float64(leadingWidth) / available
+}
+
 // fixedHeightLayout forces its contents to a fixed height while leaving the
 // width to the parent container. It is used to reserve a stable amount of space
 // for the activity panel so a neighbouring widget can absorb the rest.
@@ -94,6 +126,13 @@ func (l fixedHeightLayout) Layout(objects []fyne.CanvasObject, size fyne.Size) {
 // stops it from growing with the window (as an even two-column grid would), so
 // the extra space a wider window provides goes entirely to the value column. It
 // expects exactly two children: caption first, value second.
+//
+// The value column has no minimum of its own: it gets whatever the container's
+// width leaves, down to zero. What keeps it readable in the details pane is the
+// 460 px minimum on commandOutputScroll (jobs_view_details.go), which is that
+// pane's widest minimum and therefore its floor — a constant that exists for an
+// unrelated reason. A new caller that gives this layout less width gets a value
+// column that silently renders narrow or empty rather than one that clips.
 type captionValueLayout struct {
 	captionWidth float32
 }

src/ui/layout_test.go

@@ -5,6 +5,7 @@ import (
 
 	"fyne.io/fyne/v2/test"
 	"fyne.io/fyne/v2/theme"
+	"fyne.io/fyne/v2/widget"
 )
 
 // TestRowOverlapMatchesInnerPadding pins rowOverlap to theme.InnerPadding, the
@@ -27,6 +28,37 @@ func TestRowOverlapMatchesInnerPadding(t *testing.T) {
 	}
 }
 
+// TestCancelRowOverlapAddsBackOneInnerPadding is the regression guard for the
+// Settings tab's Theme row sitting flush against the Notifications checkbox:
+// the wrapper must add exactly the padding rowOverlap removes, on the top edge
+// only, so the row below is unaffected and the width does not change.
+func TestCancelRowOverlapAddsBackOneInnerPadding(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+
+	child := widget.NewSelect([]string{"System"}, nil)
+	wrapped := cancelRowOverlap(child)
+
+	childMin, wrappedMin := child.MinSize(), wrapped.MinSize()
+	if got, want := wrappedMin.Height, childMin.Height-rowOverlap(); got != want {
+		t.Errorf("wrapped height = %v, want %v (child %v plus one inner padding)", got, want, childMin.Height)
+	}
+	if got, want := wrappedMin.Width, childMin.Width; got != want {
+		t.Errorf("wrapped width = %v, want the child's %v", got, want)
+	}
+
+	wrapped.Resize(wrappedMin)
+	if got, want := child.Position().Y, -rowOverlap(); got != want {
+		t.Errorf("child Y = %v, want %v", got, want)
+	}
+	if got := child.Position().X; got != 0 {
+		t.Errorf("child X = %v, want 0", got)
+	}
+	if got, want := child.Size().Height, childMin.Height; got != want {
+		t.Errorf("child height = %v, want %v: the padding must not be taken out of the row", got, want)
+	}
+}
+
 // TestCaptionColumnWidth covers the shapes F10's shared helper has to handle:
 // no captions, one, and several of varying length at two text sizes.
 func TestCaptionColumnWidth(t *testing.T) {

src/ui/mainwindow.go

@@ -13,30 +13,23 @@ import (
 	"fyne.io/fyne/v2/theme"
 )
 
+const runRecordTimeLayout = "2006-01-02 15:04:05"
+
 // The UI package aliases domain types to keep widget callbacks short. The actual
 // durable model still lives in src/domain, so UI code does not define a second
 // copy of the scheduler data.
 type job = domain.Job
 type event = domain.RunRecord
 
-func newMainView(w fyne.Window, svc *app.Service) (fyne.CanvasObject, func(time.Duration, bool)) {
+func newMainView(w fyne.Window, svc *app.Service, tray *trayState) (fyne.CanvasObject, func(time.Duration, bool)) {
-	svc.InstallDesktopIcon(appID, assets.IconBytes())
+	// History is session-only: jobs.json never persists JobRuntime.Logs (see
-
+	// domain.JobRuntime), so there is nothing to seed the History tab with at
-	// Build the initial event history from the current runtime state. Jobs and
+	// startup. It starts empty and fills as events arrive.
-	// runtimes are read here only for this one-time initialization; the jobs view
+	events := newHistoryLog(nil)
-	// owns all subsequent state via its own syncFromService closure.
-	initialJobs := svc.Jobs()
-	initialRuntimes := make(map[int]*domain.JobRuntime, len(initialJobs))
-	for _, j := range initialJobs {
-		if rt := svc.Runtime(j.ID); rt != nil {
-			initialRuntimes[j.ID] = rt
-		}
-	}
-	events := collectActivity(initialJobs, initialRuntimes)
 
 	jobsPanel, refreshJobsView := newJobsView(w, svc)
 
-	history, refreshHistory := newHistoryView(&events)
+	history, refreshHistory := newHistoryView(events)
 	recordStartup := func(duration time.Duration, windowShown bool) {
 		// Startup is recorded as an in-memory History event instead of being
 		// persisted into jobs.json. It is session diagnostics, not durable job
@@ -46,7 +39,7 @@ func newMainView(w fyne.Window, svc *app.Service) (fyne.CanvasObject, func(time.
 		if !windowShown {
 			detail = "Started in tray in " + duration.Round(time.Millisecond).String()
 		}
-		events = append(events, newEvent(0, "Application", "Started", detail))
+		events.add(newEvent(0, "Application", "Started", detail))
 		refreshHistory()
 	}
 
@@ -63,40 +56,56 @@ func newMainView(w fyne.Window, svc *app.Service) (fyne.CanvasObject, func(time.
 	// the main thread in both cases, so the engine never mutates Fyne state off
 	// the UI thread. This is the sole place events touch widgets. (Resolves #4.)
 	svc.Subscribe(app.ObserverFunc(func(ev app.Event) {
-		recorded, isRecorded := ev.(app.RunRecorded)
-		errOccurred, isError := ev.(app.ErrorOccurred)
-		jobsLoaded, isJobsLoaded := ev.(app.JobsLoaded)
 		fyne.Do(func() {
-			if isRecorded {
+			// A type switch does not get compiler-enforced exhaustiveness (see
-				events = append(events, recorded.Record)
+			// app.Event's doc comment) — JobChanged and SchedulerStateChanged
-				r := recorded.Record
+			// intentionally fall through to the unconditional refresh() below
-				if r.State == "Failed" &&
+			// without their own case, since a broad state re-read is all they need.
-					(r.Trigger == "Manual" || r.Trigger == "Schedule") &&
+			switch e := ev.(type) {
+			case app.RunRecorded:
+				events.add(e.Record)
+				if e.Record.State == "Failed" &&
+					(e.Record.Trigger == "Manual" || e.Record.Trigger == "Schedule") &&
 					svc.ShouldNotifyOnFailure() {
-					fyne.CurrentApp().SendNotification(&fyne.Notification{
+					timing := notificationTiming{
-						Title:   "GoSentry: Job Failed",
+						JobName:   e.Record.JobName,
-						Content: r.JobName + ": " + r.Detail,
+						EmittedAt: time.Now(),
+					}
+					if finished, err := time.ParseInLocation(runRecordTimeLayout, e.Record.Time, time.Local); err == nil {
+						timing.RunFinished = finished
+					}
+					fyne.Do(func() {
+						timing.UIQueuedAt = time.Now()
+						fyne.CurrentApp().SendNotification(&fyne.Notification{
+							Title:   "GoSentry: Job Failed",
+							Content: e.Record.JobName + ": " + e.Record.Detail,
+						})
+						timing.AfterSendAt = time.Now()
+						if err := appendNotificationTimingLog(svc.Paths().LogsDir, timing); err != nil {
+							fyne.LogError("Failed to write notification timing log", err)
+						}
 					})
 				}
-			}
+			case app.ErrorOccurred:
-			if isError {
+				events.add(newEvent(0, "Service", "Error", e.Err.Error()))
-				events = append(events, newEvent(0, "Service", "Error", errOccurred.Err.Error()))
+			case app.JobsLoaded:
-			}
-			if isJobsLoaded {
 				// Selecting an existing jobs file replaces the job list without a
 				// prompt, so History carries the receipt: how many jobs, from where.
-				detail := strconv.Itoa(jobsLoaded.Count) + " jobs from " + jobsLoaded.Path
+				detail := strconv.Itoa(e.Count) + " jobs from " + e.Path
-				events = append(events, newEvent(0, "Service", "Jobs loaded", detail))
+				events.add(newEvent(0, "Service", "Jobs loaded", detail))
 			}
 			refresh()
 		})
 	}))
+	// Installed after Subscribe so a failure reaches History through
+	// ErrorOccurred instead of being emitted to no listener.
+	svc.InstallDesktopIcon(appID, assets.IconBytes())
 	svc.Start()
 
 	tabs := container.NewAppTabs(
 		container.NewTabItemWithIcon("Jobs", theme.ListIcon(), jobsPanel),
 		container.NewTabItemWithIcon("History", theme.HistoryIcon(), history),
-		container.NewTabItemWithIcon("Settings", theme.SettingsIcon(), settingsView(w, svc)),
+		container.NewTabItemWithIcon("Settings", theme.SettingsIcon(), settingsView(w, svc, tray)),
 	)
 	tabs.SetTabLocation(container.TabLocationTop)
 

src/ui/mainwindow_test.go

@@ -3,12 +3,16 @@ package ui
 import (
 	"path/filepath"
 	"testing"
+	"time"
 
 	"gitea.mixdep.ru/mix/gosentry/src/app"
 	"gitea.mixdep.ru/mix/gosentry/src/domain"
 	"gitea.mixdep.ru/mix/gosentry/src/storage"
 
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
 	"fyne.io/fyne/v2/test"
+	"fyne.io/fyne/v2/widget"
 )
 
 // newTestStore builds a Store rooted in a temp directory. It is separate from
@@ -62,14 +66,42 @@ func TestMainViewFitsTheDefaultWindowSize(t *testing.T) {
 	svc := app.NewService(store, nil)
 	defer svc.Stop()
 
-	content, _ := newMainView(w, svc)
+	content, _ := newMainView(w, svc, &trayState{})
 	min := content.MinSize()
 	if min.Width > defaultWindowWidth || min.Height > defaultWindowHeight {
 		t.Errorf("content.MinSize() = %v, want within %vx%v", min, defaultWindowWidth, defaultWindowHeight)
 	}
 }
 
-func TestMainViewBuilds(t *testing.T) {
+// historyTable returns the History tab's table. It is the only widget.Table the
+// main view builds, so the search does not need to know the tab order.
+func historyTable(t *testing.T, content fyne.CanvasObject) *widget.Table {
+	t.Helper()
+	tabs, ok := content.(*container.AppTabs)
+	if !ok {
+		t.Fatal("main view is not the expected AppTabs container")
+	}
+	for _, item := range tabs.Items {
+		found := findFirst(item.Content, func(o fyne.CanvasObject) bool {
+			_, ok := o.(*widget.Table)
+			return ok
+		})
+		if found != nil {
+			return found.(*widget.Table)
+		}
+	}
+	t.Fatal("main view has no history table")
+	return nil
+}
+
+// TestMainViewRecordStartupAddsHistoryRow covers the second return value of
+// newMainView. run.go calls it once per launch with a different windowShown
+// flag depending on whether the app started into the tray, and that call is the
+// only thing that puts the startup receipt into History — so both the wording
+// and the fact that the table is redrawn are worth pinning. Building the full
+// tab set and setting it as the window content is a side benefit: no other test
+// assembles all three tabs together.
+func TestMainViewRecordStartupAddsHistoryRow(t *testing.T) {
 	testApp := test.NewApp()
 	defer testApp.Quit()
 
@@ -79,10 +111,40 @@ func TestMainViewBuilds(t *testing.T) {
 	svc := newTestService(t)
 	defer svc.Stop()
 
-	content, recordStartup := newMainView(w, svc)
+	content, recordStartup := newMainView(w, svc, &trayState{})
-	if content == nil {
-		t.Fatal("newMainView returned nil content")
-	}
 	w.SetContent(content)
-	recordStartup(0, true)
+
+	table := historyTable(t, content)
+	if rows, _ := table.Length(); rows != 0 {
+		t.Fatalf("history rows before startup = %d, want 0", rows)
+	}
+
+	recordStartup(1500*time.Millisecond, true)
+	recordStartup(20*time.Millisecond, false)
+
+	rows, _ := table.Length()
+	if rows != 2 {
+		t.Fatalf("history rows after two startup records = %d, want 2", rows)
+	}
+
+	// Read the rows back through the table's own cell callbacks, which is what
+	// the redraw does; a value only in the events slice would not prove the
+	// table was refreshed with it.
+	cell := table.CreateCell()
+	cellText := func(row, col int) string {
+		table.UpdateCell(widget.TableCellID{Row: row, Col: col}, cell)
+		return cell.(*widget.Label).Text
+	}
+	if got := cellText(0, 2); got != "Application" {
+		t.Errorf("startup row job = %q, want %q", got, "Application")
+	}
+	if got := cellText(0, 3); got != "Started" {
+		t.Errorf("startup row state = %q, want %q", got, "Started")
+	}
+	if got := cellText(0, 4); got != "Window shown in 1.5s" {
+		t.Errorf("windowed startup detail = %q, want %q", got, "Window shown in 1.5s")
+	}
+	if got := cellText(1, 4); got != "Started in tray in 20ms" {
+		t.Errorf("tray startup detail = %q, want %q", got, "Started in tray in 20ms")
+	}
 }

src/ui/notify_timing.go

@@ -0,0 +1,72 @@
+package ui
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+)
+
+// notificationTimingLogName deliberately does not end in .log: runner.CleanupLogs
+// only manages .log files in the logs directory, and this diagnostic file
+// should not be subject to (or counted against) that retention policy.
+const notificationTimingLogName = "notify-timing.tsv"
+
+// notificationTiming captures wall-clock points from a failed run through
+// SendNotification. It does not include OS toast display latency — Fyne on
+// Windows shows toasts via a separate PowerShell process after SendNotification
+// returns.
+type notificationTiming struct {
+	JobName     string
+	RunFinished time.Time
+	EmittedAt   time.Time
+	UIQueuedAt  time.Time
+	AfterSendAt time.Time
+}
+
+func (t notificationTiming) formatLine() string {
+	return fmt.Sprintf(
+		"%s\tjob=%s\tms_after_run=%s\tms_fyne_do=%s\tms_send=%s\tms_app_total=%s\n",
+		t.AfterSendAt.Format(time.RFC3339Nano),
+		t.JobName,
+		msBetween(t.RunFinished, t.EmittedAt),
+		msBetween(t.EmittedAt, t.UIQueuedAt),
+		msBetween(t.UIQueuedAt, t.AfterSendAt),
+		msBetween(t.EmittedAt, t.AfterSendAt),
+	)
+}
+
+func msBetween(from, to time.Time) string {
+	if from.IsZero() || to.IsZero() || to.Before(from) {
+		return "-"
+	}
+	return fmt.Sprintf("%d", to.Sub(from).Milliseconds())
+}
+
+func appendNotificationTimingLog(logsDir string, timing notificationTiming) error {
+	if logsDir == "" {
+		return nil
+	}
+	if err := os.MkdirAll(logsDir, 0o755); err != nil {
+		return err
+	}
+	path := filepath.Join(logsDir, notificationTimingLogName)
+	file, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o644)
+	if err != nil {
+		return err
+	}
+	defer file.Close()
+
+	info, err := file.Stat()
+	if err != nil {
+		return err
+	}
+	if info.Size() == 0 {
+		if _, err := file.WriteString("# GoSentry failure-notification timing (app side only; OS toast delay is not included)\n" +
+			"# columns: timestamp job ms_after_run ms_fyne_do ms_send ms_app_total\n"); err != nil {
+			return err
+		}
+	}
+	_, err = file.WriteString(timing.formatLine())
+	return err
+}

src/ui/notify_timing_test.go

@@ -0,0 +1,59 @@
+package ui
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestNotificationTimingFormatLine(t *testing.T) {
+	runFinished := time.Date(2026, 8, 5, 23, 0, 0, 0, time.Local)
+	emitted := runFinished.Add(15 * time.Millisecond)
+	uiQueued := emitted.Add(4 * time.Millisecond)
+	afterSend := uiQueued.Add(2 * time.Millisecond)
+
+	line := notificationTiming{
+		JobName:     "Failure notification test",
+		RunFinished: runFinished,
+		EmittedAt:   emitted,
+		UIQueuedAt:  uiQueued,
+		AfterSendAt: afterSend,
+	}.formatLine()
+
+	if !strings.Contains(line, "job=Failure notification test") {
+		t.Fatalf("line = %q, want job name", line)
+	}
+	for _, want := range []string{"ms_after_run=15", "ms_fyne_do=4", "ms_send=2", "ms_app_total=6"} {
+		if !strings.Contains(line, want) {
+			t.Fatalf("line = %q, want substring %q", line, want)
+		}
+	}
+}
+
+func TestAppendNotificationTimingLogWritesHeaderAndRow(t *testing.T) {
+	dir := t.TempDir()
+	timing := notificationTiming{
+		JobName:     "demo",
+		RunFinished: time.Now().Add(-10 * time.Millisecond),
+		EmittedAt:   time.Now().Add(-5 * time.Millisecond),
+		UIQueuedAt:  time.Now().Add(-2 * time.Millisecond),
+		AfterSendAt: time.Now(),
+	}
+	if err := appendNotificationTimingLog(dir, timing); err != nil {
+		t.Fatal(err)
+	}
+
+	data, err := os.ReadFile(filepath.Join(dir, notificationTimingLogName))
+	if err != nil {
+		t.Fatal(err)
+	}
+	text := string(data)
+	if !strings.HasPrefix(text, "# GoSentry failure-notification timing") {
+		t.Fatalf("log = %q, want header", text)
+	}
+	if !strings.Contains(text, "job=demo") {
+		t.Fatalf("log = %q, want timing row", text)
+	}
+}

src/ui/run.go

@@ -6,6 +6,7 @@ import (
 
 	"gitea.mixdep.ru/mix/gosentry/assets"
 	"gitea.mixdep.ru/mix/gosentry/src/app"
+	"gitea.mixdep.ru/mix/gosentry/src/storage"
 
 	"fyne.io/fyne/v2"
 	fyneapp "fyne.io/fyne/v2/app"
@@ -16,9 +17,10 @@ import (
 const appID = "ru.mixeme.gosentry.desktop"
 
 // defaultWindowWidth and defaultWindowHeight are the size the window opens at
-// on first launch (later launches restore the last size from preferences).
+// on every launch. Window size persistence is frozen (see ROADMAP.md), so
-// Fyne enforces the assembled content's MinSize as a hard floor over these, so
+// there is no saved size to restore. Fyne enforces the assembled content's
-// they only take effect if the content actually fits within them.
+// MinSize as a hard floor over these, so they only take effect if the content
+// actually fits within them.
 const defaultWindowWidth = 1024
 const defaultWindowHeight = 660
 
@@ -29,7 +31,9 @@ const defaultWindowHeight = 660
 // mainwindow.go split keeps lifecycle separate from view construction.
 func Run(startInTray bool) {
 	started := time.Now()
-	instanceListener, primary := acquireSingleInstance(!startInTray)
+	keepInTray := storage.PeekKeepRunningInTray()
+	startHidden := resolveStartHidden(startInTray, keepInTray)
+	instanceListener, primary := acquireSingleInstance(!startHidden)
 	if !primary {
 		return
 	}
@@ -56,29 +60,32 @@ func Run(startInTray bool) {
 	}
 
 	w := a.NewWindow("GoSentry " + app.Version)
-	configureSystemTray(a, w)
+	setWindowsNotificationIcon()
-	prefs := a.Preferences()
+	w.Resize(fyne.NewSize(defaultWindowWidth, defaultWindowHeight))
-	winW := float32(prefs.FloatWithFallback("window.width", defaultWindowWidth))
-	winH := float32(prefs.FloatWithFallback("window.height", defaultWindowHeight))
-	w.Resize(fyne.NewSize(winW, winH))
 	svc, err := app.Open()
 	if err != nil {
 		w.SetContent(container.NewPadded(widget.NewLabel("Failed to load GoSentry configuration: " + err.Error())))
 		a.Run()
 		return
 	}
+	config := svc.Config()
+	keepInTray = config.KeepRunningInTray
+	startHidden = resolveStartHidden(startInTray, keepInTray)
+	tray := &trayState{}
+	tray.apply(a, w, keepInTray, false)
 	// Apply the persisted theme before building content so the window renders in
 	// the chosen theme from the first frame rather than flashing the default one.
-	applyTheme(a, svc.Store().Config.Theme)
+	applyTheme(a, config.Theme)
-	content, recordStartup := newMainView(w, svc)
+	content, recordStartup := newMainView(w, svc, tray)
 	w.SetContent(content)
-	serveSingleInstance(instanceListener, w)
+	serveSingleInstance(instanceListener, w, tray)
-	if startInTray {
+	if startHidden {
 		// Autostart launches intentionally stay hidden, so "window shown" would be
 		// a misleading metric. Record a separate startup event for the tray path
 		// instead of forcing one timing definition onto two different UX flows.
 		recordStartup(time.Since(started), false)
 		a.Run()
+		svc.Stop()
 		return
 	}
 	// Show the window before recording startup time. Measuring earlier, during
@@ -88,4 +95,26 @@ func Run(startInTray bool) {
 	w.Show()
 	recordStartup(time.Since(started), true)
 	a.Run()
+	// a.Run() blocks until the tray's Quit item or a window close calls a.Quit().
+	// Stopping here — rather than not at all — cancels the run context so an
+	// in-flight run's os/exec call sees ctx.Done() instead of being orphaned, and
+	// stops the scheduler goroutine before the process exits.
+	svc.Stop()
+}
+
+// setWindowsNotificationIcon supplies App.Icon for Fyne desktop notifications
+// without touching the window or taskbar icon. On Windows those come from the PE
+// gosentry.ico resource, so run.go must not call SetIcon. Fyne's NewWindow ends
+// with SetIcon(nil), which adopts App.Icon when it is already set — metadata
+// must therefore be registered only after the window is created. The tray icon
+// is set separately in tray.go via SetSystemTrayIcon.
+func setWindowsNotificationIcon() {
+	if runtime.GOOS != "windows" {
+		return
+	}
+	fyneapp.SetMetadata(fyne.AppMetadata{
+		ID:   appID,
+		Name: "GoSentry",
+		Icon: assets.Icon(),
+	})
 }

src/ui/settings_view.go

@@ -12,7 +12,7 @@ import (
 	"fyne.io/fyne/v2/widget"
 )
 
-const projectRepositoryURL = "https://gitea.mixdep.ru/mix/gosentry"
+const projectRepositoryURL = "https://github.com/mixeme/gosentry"
 
 // settingsCaptions lists every settingsRow caption in the tab, in no
 // particular order. settingsView measures this once with captionColumnWidth
@@ -26,8 +26,15 @@ var settingsCaptions = []string{
 	"GoSentry", "Go", "Fyne", "Repository",
 }
 
-func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
+func settingsView(w fyne.Window, svc *app.Service, tray *trayState) fyne.CanvasObject {
-	store := svc.Store()
+	// saved mirrors the config as last persisted (or freshly loaded at
+	// construction); it is a local copy the closures below compare the form
+	// against and reassign after a successful save, rather than holding onto
+	// the live *storage.Store the Service owns (see app.Service.Config).
+	// paths never changes after construction of this view — AppDir and
+	// ConfigPath are fixed for the process — so it is read once, not refreshed.
+	saved := svc.Config()
+	paths := svc.Paths()
 	// updateSaveState compares the form to the saved config and enables Save only
 	// when something differs. It is defined below (once Save and every field
 	// exist) but declared here so the field change handlers can reference it.
@@ -36,33 +43,65 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 	// both the initial load and the Cancel/Defaults buttons below.
 	var loadFields func(domain.Config)
 	startOnLogin := widget.NewCheck("Start on login", nil)
-	startOnLogin.SetChecked(store.Config.StartOnLogin)
+	startOnLogin.SetChecked(saved.StartOnLogin)
+	minimizeToTray := widget.NewCheck("Keep running in the system tray", nil)
+	minimizeToTray.SetChecked(saved.KeepRunningInTray)
 	autostartStatus := widget.NewLabel("")
+	trayRestartHint := widget.NewLabel("")
+	trayRestartHint.Truncation = fyne.TextTruncateClip
+	// autostartCheckGen guards against an in-flight check's result landing after
+	// a newer one started (e.g. the user toggles a checkbox again before the
+	// first check's PowerShell call returns). Both the increment and the compare
+	// happen on the main/Fyne thread, so this needs no lock of its own.
+	var autostartCheckGen int
 	refreshAutostartStatus := func() {
-		ok, message := svc.AutostartStatus()
+		if settingsPendingAutostart(startOnLogin, minimizeToTray, saved) {
-		if ok {
+			autostartStatus.SetText("Pending: save settings to apply")
-			autostartStatus.SetText("OK: " + message)
 			return
 		}
-		autostartStatus.SetText("Problem: " + message)
+		// svc.AutostartStatus() reaches readShortcut on Windows, which spawns
+		// powershell.exe and blocks on CombinedOutput() — hundreds of milliseconds
+		// of cold start. Running it off the main thread keeps that from freezing
+		// the window on construction and on every checkbox toggle.
+		autostartStatus.SetText("Checking...")
+		autostartCheckGen++
+		gen := autostartCheckGen
+		go func() {
+			ok, message := svc.AutostartStatus()
+			fyne.Do(func() {
+				if gen != autostartCheckGen {
+					return
+				}
+				if ok {
+					autostartStatus.SetText("OK: " + message)
+					return
+				}
+				autostartStatus.SetText("Problem: " + message)
+			})
+		}()
+	}
+	refreshTrayRestartHint := func(pending bool) {
+		if pending {
+			trayRestartHint.SetText("Pending: restart GoSentry after save for the tray icon change to take effect.")
+			return
+		}
+		trayRestartHint.SetText("")
 	}
 	startOnLogin.OnChanged = func(bool) {
-		if startOnLogin.Checked != store.Config.StartOnLogin {
+		refreshAutostartStatus()
-			autostartStatus.SetText("Pending: save settings to apply")
+		updateSaveState()
-		} else {
+	}
-			refreshAutostartStatus()
+	minimizeToTray.OnChanged = func(bool) {
-		}
+		refreshAutostartStatus()
+		refreshTrayRestartHint(minimizeToTray.Checked != saved.KeepRunningInTray)
 		updateSaveState()
 	}
 	refreshAutostartStatus()
-	minimizeToTray := widget.NewCheck("Keep running in the system tray", nil)
-	minimizeToTray.SetChecked(store.Config.KeepRunningInTray)
-	minimizeToTray.OnChanged = func(bool) { updateSaveState() }
 	notifications := widget.NewCheck("Show desktop notifications for failed jobs", nil)
-	notifications.SetChecked(store.Config.NotifyOnFailure)
+	notifications.SetChecked(saved.NotifyOnFailure)
 	notifications.OnChanged = func(bool) { updateSaveState() }
-	themeSelect := widget.NewSelect([]string{themeLabelDefault, themeLabelGoSentry}, nil)
+	themeSelect := widget.NewSelect([]string{themeLabelSystem, themeLabelGoSentry}, nil)
-	themeSelect.SetSelected(themeLabel(store.Config.Theme))
+	themeSelect.SetSelected(themeLabel(saved.Theme))
 	// Preview the theme the moment it is picked so the choice is visible before
 	// saving; Save persists it. Reverting the selection reverts the preview, and
 	// closing without saving falls back to the stored theme on next launch.
@@ -74,20 +113,20 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 		[]string{string(domain.ExecutionModeParallel), string(domain.ExecutionModeSequential)},
 		nil,
 	)
-	executionModeSelect.SetSelected(string(store.Config.ExecutionMode))
+	executionModeSelect.SetSelected(string(saved.ExecutionMode))
 	executionModeSelect.OnChanged = func(string) { updateSaveState() }
 	overlapPolicySelect := widget.NewSelect(
 		[]string{string(domain.OverlapPolicySkip), string(domain.OverlapPolicyQueue)},
 		nil,
 	)
-	overlapPolicySelect.SetSelected(string(store.Config.OverlapPolicy))
+	overlapPolicySelect.SetSelected(string(saved.OverlapPolicy))
 	overlapPolicySelect.OnChanged = func(string) { updateSaveState() }
 	defaultTimeout := widget.NewEntry()
 	defaultTimeout.SetPlaceHolder("0 = no timeout")
-	defaultTimeout.SetText(strconv.Itoa(store.Config.DefaultTimeoutSeconds))
+	defaultTimeout.SetText(strconv.Itoa(saved.DefaultTimeoutSeconds))
 	defaultTimeout.OnChanged = func(string) { updateSaveState() }
 	jobsFile := widget.NewEntry()
-	jobsFile.SetText(store.Config.JobsFile)
+	jobsFile.SetText(saved.JobsFile)
 	jobsFile.OnChanged = func(string) { updateSaveState() }
 	// The picker only offers existing files; a jobs file that does not exist yet
 	// is entered by typing its path, which Save then creates.
@@ -95,7 +134,7 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 		chooseJSONFile(w, jobsFile)
 	})
 	logsDir := widget.NewEntry()
-	logsDir.SetText(store.Config.LogsDir)
+	logsDir.SetText(saved.LogsDir)
 	logsDir.OnChanged = func(string) { updateSaveState() }
 	logsDirBrowse := widget.NewButtonWithIcon("Browse", theme.FolderOpenIcon(), func() {
 		chooseFolder(w, logsDir)
@@ -105,13 +144,15 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 	// manager. It reveals whatever the field currently holds, so an edit can be
 	// checked before Save.
 	logsDirOpen := widget.NewButtonWithIcon("Open", theme.FolderIcon(), func() {
-		openFolder(w, settingsFolderPath(store.Paths.AppDir, logsDir.Text))
+		openFolder(w, settingsFolderPath(paths.AppDir, logsDir.Text))
 	})
 	maxLogFiles := widget.NewEntry()
-	maxLogFiles.SetText(strconv.Itoa(store.Config.MaxLogFiles))
+	maxLogFiles.SetPlaceHolder("0 = unlimited")
+	maxLogFiles.SetText(strconv.Itoa(saved.MaxLogFiles))
 	maxLogFiles.OnChanged = func(string) { updateSaveState() }
 	maxLogAgeDays := widget.NewEntry()
-	maxLogAgeDays.SetText(strconv.Itoa(store.Config.MaxLogAgeDays))
+	maxLogAgeDays.SetPlaceHolder("0 = unlimited")
+	maxLogAgeDays.SetText(strconv.Itoa(saved.MaxLogAgeDays))
 	maxLogAgeDays.OnChanged = func(string) { updateSaveState() }
 	// Autostart status sits on its own row beneath the checkbox (rather than
 	// beside it) so the Application section fits within a half-width column.
@@ -120,33 +161,22 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 	settingsStatus := widget.NewLabel("")
 
 	saveSettings := widget.NewButtonWithIcon("Save settings", theme.DocumentSaveIcon(), func() {
-		files, err := strconv.Atoi(strings.TrimSpace(maxLogFiles.Text))
+		// Only the parse itself happens here: a numeric field has to become an int
-		if err != nil || files <= 0 {
+		// before it can go into a domain.Config at all. Everything else — required
-			settingsStatus.SetText("Max log files must be a positive number")
+		// fields, negative numbers, valid enum values — is Service.UpdateSettings'
-			return
+		// job (see app.validateConfig), so its error is what the user sees rather
-		}
+		// than a second copy of the same rules with different wording.
-		days, err := strconv.Atoi(strings.TrimSpace(maxLogAgeDays.Text))
+		files, filesErr := strconv.Atoi(strings.TrimSpace(maxLogFiles.Text))
-		if err != nil || days <= 0 {
+		days, daysErr := strconv.Atoi(strings.TrimSpace(maxLogAgeDays.Text))
-			settingsStatus.SetText("Max log age days must be a positive number")
+		timeout, timeoutErr := strconv.Atoi(strings.TrimSpace(defaultTimeout.Text))
-			return
+		if filesErr != nil || daysErr != nil || timeoutErr != nil {
-		}
+			settingsStatus.SetText("Max log files, max log age days, and default timeout must be numbers")
-		if strings.TrimSpace(jobsFile.Text) == "" {
-			settingsStatus.SetText("Jobs file is required")
-			return
-		}
-		if strings.TrimSpace(logsDir.Text) == "" {
-			settingsStatus.SetText("Logs directory is required")
-			return
-		}
-		timeout, err := strconv.Atoi(strings.TrimSpace(defaultTimeout.Text))
-		if err != nil || timeout < 0 {
-			settingsStatus.SetText("Default timeout must not be negative (0 = no timeout)")
 			return
 		}
 		// Build the new config from the form and hand it to the Service, which
 		// validates it, persists config and jobs to the (possibly new) directory,
 		// and runs log cleanup so tightened retention limits take effect at once.
-		config := store.Config
+		config := saved
 		config.JobsFile = strings.TrimSpace(jobsFile.Text)
 		config.LogsDir = strings.TrimSpace(logsDir.Text)
 		config.MaxLogFiles = files
@@ -158,16 +188,28 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 		config.OverlapPolicy = domain.OverlapPolicy(overlapPolicySelect.Selected)
 		config.DefaultTimeoutSeconds = timeout
 		config.Theme = themeFromLabel(themeSelect.Selected)
+		previousKeepInTray := saved.KeepRunningInTray
 		if err := svc.UpdateSettings(config); err != nil {
 			settingsStatus.SetText("Save failed: " + err.Error())
 			return
 		}
+		// UpdateSettings may re-resolve paths (a jobs-file switch adopts a
+		// different directory), so pick up the fresh copy rather than assuming
+		// config is exactly what landed.
+		saved = svc.Config()
+		paths = svc.Paths()
 		if err := svc.ApplyAutostart(); err != nil {
 			refreshAutostartStatus()
 			settingsStatus.SetText("Saved, autostart failed: " + err.Error())
 			return
 		}
 		refreshAutostartStatus()
+		tray.apply(fyne.CurrentApp(), w, config.KeepRunningInTray, true)
+		if previousKeepInTray != config.KeepRunningInTray {
+			trayRestartHint.SetText(trayRestartHintText)
+		} else {
+			refreshTrayRestartHint(false)
+		}
 		settingsStatus.SetText("Saved")
 		// The form now matches the persisted config, so disable Save again.
 		updateSaveState()
@@ -178,7 +220,7 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 	// fields compare against their canonical string form; any unparsable text
 	// counts as a change so the user can click Save and see the validation error.
 	updateSaveState = func() {
-		c := store.Config
+		c := saved
 		changed := startOnLogin.Checked != c.StartOnLogin ||
 			minimizeToTray.Checked != c.KeepRunningInTray ||
 			notifications.Checked != c.NotifyOnFailure ||
@@ -215,16 +257,17 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 		logsDir.SetText(c.LogsDir)
 		maxLogFiles.SetText(strconv.Itoa(c.MaxLogFiles))
 		maxLogAgeDays.SetText(strconv.Itoa(c.MaxLogAgeDays))
-		if startOnLogin.Checked != store.Config.StartOnLogin {
+		if settingsPendingAutostart(startOnLogin, minimizeToTray, saved) {
 			autostartStatus.SetText("Pending: save settings to apply")
 		} else {
 			refreshAutostartStatus()
 		}
+		refreshTrayRestartHint(minimizeToTray.Checked != saved.KeepRunningInTray)
 		settingsStatus.SetText("")
 		updateSaveState()
 	}
 	cancelSettings := widget.NewButtonWithIcon("Cancel", theme.CancelIcon(), func() {
-		loadFields(store.Config)
+		loadFields(saved)
 	})
 	restoreDefaults := widget.NewButtonWithIcon("Defaults", theme.MediaReplayIcon(), func() {
 		loadFields(domain.DefaultConfig())
@@ -234,12 +277,13 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 		startOnLogin:        startOnLogin,
 		autostartStatus:     autostartStatus,
 		minimizeToTray:      minimizeToTray,
+		trayRestartHint:     trayRestartHint,
 		notifications:       notifications,
 		themeSelect:         themeSelect,
 		executionModeSelect: executionModeSelect,
 		overlapPolicySelect: overlapPolicySelect,
 		defaultTimeout:      defaultTimeout,
-		configPath:          store.Paths.ConfigPath,
+		configPath:          paths.ConfigPath,
 		jobsFile:            jobsFile,
 		jobsFileBrowse:      jobsFileBrowse,
 		logsDir:             logsDir,
@@ -254,24 +298,29 @@ func settingsView(w fyne.Window, svc *app.Service) fyne.CanvasObject {
 	})
 }
 
+func settingsPendingAutostart(startOnLogin, minimizeToTray *widget.Check, saved domain.Config) bool {
+	return startOnLogin.Checked != saved.StartOnLogin ||
+		minimizeToTray.Checked != saved.KeepRunningInTray
+}
+
 // Theme dropdown labels. These are the human-facing captions; themeLabel and
 // themeFromLabel translate between them and the stored domain.Theme values so the
-// select never leaks the on-disk "default"/"gosentry" strings to the user.
+// select never leaks the on-disk "system"/"gosentry" strings to the user.
 const (
-	themeLabelDefault  = "Default"
+	themeLabelSystem   = "System"
 	themeLabelGoSentry = "GoSentry"
 )
 
 func themeLabel(choice domain.Theme) string {
-	if choice == domain.ThemeGoSentry {
+	if choice == domain.ThemeSystem {
-		return themeLabelGoSentry
+		return themeLabelSystem
 	}
-	return themeLabelDefault
+	return themeLabelGoSentry
 }
 
 func themeFromLabel(label string) domain.Theme {
 	if label == themeLabelGoSentry {
 		return domain.ThemeGoSentry
 	}
-	return domain.ThemeDefault
+	return domain.ThemeSystem
 }

src/ui/settings_view_layout.go

@@ -20,6 +20,7 @@ type settingsFormFields struct {
 	startOnLogin        *widget.Check
 	autostartStatus     *widget.Label
 	minimizeToTray      *widget.Check
+	trayRestartHint     *widget.Label
 	notifications       *widget.Check
 	themeSelect         *widget.Select
 	executionModeSelect *widget.Select
@@ -59,8 +60,13 @@ func newSettingsLayout(f settingsFormFields) fyne.CanvasObject {
 			// empty caption, so the Application section fits in a half-width column.
 			settingsRow(capW, "", f.autostartStatus),
 			settingsRow(capW, "Tray", f.minimizeToTray),
+			settingsRow(capW, "", f.trayRestartHint),
 			settingsRow(capW, "Notifications", f.notifications),
-			settingsRow(capW, "Theme", f.themeSelect),
+			// Theme is the one row here whose value is not text: the Select paints
+			// a box out to the row's edge, so the section's overlap would leave it
+			// flush against the Notifications checkbox. Cancelling the overlap for
+			// this row alone restores the gap the checkbox rows have.
+			cancelRowOverlap(settingsRow(capW, "Theme", f.themeSelect)),
 		),
 		widget.NewSeparator(),
 		// Queue used to inline its own container.NewVBox at the theme's default

src/ui/singleinstance.go

@@ -34,11 +34,14 @@ func acquireSingleInstance(showExisting bool) (net.Listener, bool) {
 	// If the port is unavailable but does not answer as GoSentry, continue
 	// startup instead of making the application impossible to open because of an
 	// unrelated local listener. In the normal duplicate-start case the dial above
-	// succeeds and this process exits after waking the first instance.
+	// succeeds and this process exits after waking the first instance. The
+	// consequence of this fallback — two schedulers able to run against the same
+	// jobs.json and logs directory — is recorded in STANDARDS.md alongside the
+	// unauthenticated nature of this same port.
 	return nil, true
 }
 
-func serveSingleInstance(listener net.Listener, w fyne.Window) {
+func serveSingleInstance(listener net.Listener, w fyne.Window, tray *trayState) {
 	if listener == nil {
 		return
 	}
@@ -56,6 +59,7 @@ func serveSingleInstance(listener net.Listener, w fyne.Window) {
 			// Accept runs on its own goroutine, so focusing the window must be
 			// marshaled onto the main thread like every other widget update.
 			fyne.Do(func() {
+				tray.hidden = false
 				w.Show()
 				w.RequestFocus()
 			})

src/ui/theme.go

@@ -103,14 +103,14 @@ func (t gosentryTheme) Font(style fyne.TextStyle) fyne.Resource { return t.base.
 func (t gosentryTheme) Icon(name fyne.ThemeIconName) fyne.Resource { return t.base.Icon(name) }
 func (t gosentryTheme) Size(name fyne.ThemeSizeName) float32 { return t.base.Size(name) }
 
-// themeFor maps a stored Theme choice to a concrete fyne.Theme. Anything other
+// themeFor maps a stored Theme choice to a concrete fyne.Theme. Only the
-// than the explicit GoSentry choice (including the empty/legacy value) keeps
+// explicit system choice keeps Fyne's built-in theme; everything else
-// Fyne's built-in theme.
+// (including the empty/legacy value) uses the branded GoSentry theme.
 func themeFor(choice domain.Theme) fyne.Theme {
-	if choice == domain.ThemeGoSentry {
+	if choice == domain.ThemeSystem {
-		return newGoSentryTheme()
+		return theme.DefaultTheme()
 	}
-	return theme.DefaultTheme()
+	return newGoSentryTheme()
 }
 
 // applyTheme installs the theme for the given choice on the running app. Fyne

src/ui/theme_test.go

@@ -54,32 +54,32 @@ func TestGoSentryThemeDelegatesUnbrandedColors(t *testing.T) {
 	}
 }
 
-// themeFor maps the stored choice to the right theme: the GoSentry choice yields
+// themeFor maps the stored choice to the right theme: the GoSentry choice and the
-// the branded teal primary; every other value (including the empty legacy value)
+// empty legacy value yield the branded teal primary; only the explicit system
-// yields the default theme, whose primary is not the brand teal.
+// choice yields Fyne's built-in theme.
 func TestThemeForChoice(t *testing.T) {
-	gosentry := themeFor(domain.ThemeGoSentry)
+	for _, choice := range []domain.Theme{domain.ThemeGoSentry, ""} {
-	if got := gosentry.Color(theme.ColorNamePrimary, theme.VariantLight); got != brandTeal {
+		branded := themeFor(choice)
-		t.Errorf("themeFor(gosentry) primary = %v, want brand teal %v", got, brandTeal)
+		if got := branded.Color(theme.ColorNamePrimary, theme.VariantLight); got != brandTeal {
-	}
+			t.Errorf("themeFor(%q) primary = %v, want brand teal %v", choice, got, brandTeal)
-	for _, choice := range []domain.Theme{domain.ThemeDefault, ""} {
-		def := themeFor(choice)
-		if got := def.Color(theme.ColorNamePrimary, theme.VariantLight); got == brandTeal {
-			t.Errorf("themeFor(%q) should not use the brand teal primary", choice)
 		}
 	}
+	sys := themeFor(domain.ThemeSystem)
+	if got := sys.Color(theme.ColorNamePrimary, theme.VariantLight); got == brandTeal {
+		t.Errorf("themeFor(system) should not use the brand teal primary")
+	}
 }
 
 // The dropdown label helpers must round-trip, and the empty/legacy value must map
-// to the Default label so the select never shows a blank option.
+// to the GoSentry label so the select never shows a blank option.
 func TestThemeLabelRoundTrip(t *testing.T) {
 	if got := themeFromLabel(themeLabel(domain.ThemeGoSentry)); got != domain.ThemeGoSentry {
 		t.Errorf("round-trip gosentry = %q", got)
 	}
-	if got := themeFromLabel(themeLabel(domain.ThemeDefault)); got != domain.ThemeDefault {
+	if got := themeFromLabel(themeLabel(domain.ThemeSystem)); got != domain.ThemeSystem {
-		t.Errorf("round-trip default = %q", got)
+		t.Errorf("round-trip system = %q", got)
 	}
-	if got := themeLabel(""); got != themeLabelDefault {
+	if got := themeLabel(""); got != themeLabelGoSentry {
-		t.Errorf("empty theme label = %q, want %q", got, themeLabelDefault)
+		t.Errorf("empty theme label = %q, want %q", got, themeLabelGoSentry)
 	}
 }

src/ui/tray.go

@@ -4,12 +4,49 @@ import (
 	"runtime"
 
 	"gitea.mixdep.ru/mix/gosentry/assets"
+	"gitea.mixdep.ru/mix/gosentry/src/domain"
 
 	"fyne.io/fyne/v2"
 	fynedesktop "fyne.io/fyne/v2/driver/desktop"
 )
 
-func configureSystemTray(a fyne.App, w fyne.Window) {
+// trayState tracks the two pieces of tray-related process state that Fyne
+// itself does not expose: whether this process has registered the tray icon
+// (Fyne cannot add or remove it mid-session, so toggling KeepRunningInTray in
+// Settings updates close behavior immediately but shows a restart hint for the
+// icon itself) and whether the primary window is currently hidden via the tray
+// close intercept (Fyne exposes no Window.Visible API). Run owns one instance
+// and passes it to every call site of apply — settingsView's Save handler is
+// the other one — so the coupling between them is explicit instead of hidden
+// behind package-level globals that no test can reset.
+type trayState struct {
+	registered bool
+	hidden     bool
+}
+
+const trayRestartHintText = "Restart GoSentry for the tray icon change to take effect."
+
+func resolveStartHidden(cliStartInTray, keepInTray bool) bool {
+	return domain.ResolveStartHidden(cliStartInTray, keepInTray)
+}
+
+// apply configures window close handling for KeepRunningInTray. When
+// revealIfHidden is true and the tray is off, a hidden window is shown so the
+// user can still reach the app after disabling the tray mid-session.
+func (t *trayState) apply(a fyne.App, w fyne.Window, keepInTray bool, revealIfHidden bool) {
+	if keepInTray && !t.registered {
+		t.registerSystemTray(a, w)
+		t.registered = true
+	}
+	t.setWindowCloseBehavior(w, keepInTray)
+	if !keepInTray && revealIfHidden && t.hidden {
+		t.hidden = false
+		w.Show()
+		w.RequestFocus()
+	}
+}
+
+func (t *trayState) registerSystemTray(a fyne.App, w fyne.Window) {
 	desk, ok := a.(fynedesktop.App)
 	if !ok {
 		// Not every Fyne driver exposes desktop tray features. Returning silently
@@ -34,26 +71,13 @@ func configureSystemTray(a fyne.App, w fyne.Window) {
 	// localized label — which our literal "Quit" does not. Setting IsQuit makes
 	// Fyne reuse this item instead of adding a duplicate, regardless of locale.
 
-	// Window size persistence is frozen: w.Canvas().Size() returns the maximized
-	// dimensions when the window is maximized, so saving here would corrupt the
-	// stored size. Needs cross-platform maximized-state detection (IsZoomed /
-	// _NET_WM_STATE / NSWindow.isZoomed) before it can be re-enabled safely.
-	// See ROADMAP.md — "Window size — skip saving when maximized".
-	//
-	// saveWindowSize := func() {
-	// 	size := w.Canvas().Size()
-	// 	prefs := a.Preferences()
-	// 	prefs.SetFloat("window.width", float64(size.Width))
-	// 	prefs.SetFloat("window.height", float64(size.Height))
-	// }
-
 	quit := fyne.NewMenuItem("Quit", func() {
-		// saveWindowSize()
 		a.Quit()
 	})
 	quit.IsQuit = true
 	menu := fyne.NewMenu("GoSentry",
 		fyne.NewMenuItem("Show", func() {
+			t.hidden = false
 			w.Show()
 			w.RequestFocus()
 		}),
@@ -62,11 +86,19 @@ func configureSystemTray(a fyne.App, w fyne.Window) {
 	)
 	desk.SetSystemTrayMenu(menu)
 	desk.SetSystemTrayWindow(w)
-	w.SetCloseIntercept(func() {
+}
-		// Closing hides the window instead of quitting because scheduler tools are
+
-		// expected to keep working in the background. The explicit Quit tray item
+func (t *trayState) setWindowCloseBehavior(w fyne.Window, keepInTray bool) {
-		// remains the way to stop the process.
+	if keepInTray {
-		// saveWindowSize()
+		w.SetCloseIntercept(func() {
-		w.Hide()
+			// Closing hides the window instead of quitting because scheduler tools are
-	})
+			// expected to keep working in the background. The explicit Quit tray item
+			// remains the way to stop the process.
+			t.hidden = true
+			w.Hide()
+		})
+		return
+	}
+	t.hidden = false
+	w.SetCloseIntercept(nil)
 }

src/ui/tray_test.go

@@ -0,0 +1,14 @@
+package ui
+
+import "testing"
+
+func TestResolveStartHiddenUsesDomainHelper(t *testing.T) {
+	// resolveStartHidden is the UI alias used at startup; it must stay aligned
+	// with domain.ResolveStartHidden so run.go and tests share one definition.
+	if got := resolveStartHidden(true, false); got {
+		t.Fatal("expected hidden start to require both CLI flag and keepInTray")
+	}
+	if !resolveStartHidden(true, true) {
+		t.Fatal("expected hidden start when both flags are set")
+	}
+}