P8.3: update CHANGELOG and ROADMAP for 0.9.0 release

CHANGELOG:
- Expand 0.9.0 entry to cover all pre-release work: JSON storage
  migration, exit-code removal, PySentry legacy cleanup, queue execution
  modes/overlap policies, failure notifications, Command browse button,
  developer docs split, icons, tray left-click, Fyne 2.7.4 upgrade.

ROADMAP:
- Remove resolved "Linux test build broken" item (fixed in P7.1).
- Note that app/run.go was created to split dispatch logic.
- Mark "Tray Interaction" section as resolved in 0.9.0; document the
  SetSystemTrayWindow implementation and re-measured startup time
  improvement (−36%).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

docs/CHANGELOG.md

@@ -2,15 +2,60 @@
 
 All notable GoSentry changes are recorded in this file.
 
-## 0.9.0 - 2026-06-23
+## 0.9.0 - 2026-06-24
 
-**Transparent per-platform icons; tray left-click to show window; Fyne 2.7.4.**
+**Storage migrated to JSON; queue execution modes; failure notifications; tray left-click; Fyne 2.7.4.**
 
-- Regenerated all icon assets with feathered color-to-alpha so the rounded-tile boundary is transparent — the opaque white halo visible on dark taskbars and trays is gone.
-- Rebuilt `gosentry.ico` as a multi-size file (16 hand-tuned + 32/48/256 from the large PNG) and added a dedicated 16×16 `gosentry-icon-16x16.ico` for the Windows tray.
-- Per-platform icon wiring: Windows window/taskbar uses the ICO resource so GLFW selects the right frame per slot (no `a.SetIcon` override); Windows tray uses the 16×16 ICO; Linux titlebar uses `IconSmall()` for a crisp ~16 px `_NET_WM_ICON`.
-- Left-clicking the tray icon now shows and focuses the main window (`SetSystemTrayWindow`) without opening the menu; the explicit "Show" menu item is preserved for right-click access.
-- Upgraded Fyne 2.6.3 → 2.7.4 (systray 1.11.0 → 1.12.1): startup time drops from ~644 ms to ~414 ms (−36%).
+**Storage and data model:**
+- Settings and jobs now stored as `gosentry.json` and `jobs.json` (2-space indented JSON).
+  On first run after upgrading, existing `gosentry.yaml` / `jobs.yaml` files are imported
+  automatically and rewritten as JSON; the YAML files are not deleted.
+- Removed `SuccessExitCodes` field. Exit-code handling is now fixed: exit code 0 = success,
+  any nonzero exit code = failure. Jobs relying on nonzero success codes must switch to
+  `StartOnly` mode if the exit code is irrelevant.
+
+**Execution modes and overlap policies:**
+- Added `ExecutionMode` (parallel/sequential) and `OverlapPolicy` (skip/queue) settings in
+  Settings under a new Queue group.
+  - **Parallel mode** (default): all due jobs start simultaneously.
+  - **Sequential mode**: due jobs run one at a time, in order.
+  - **Skip policy** (default): if a job comes due while its previous run is still active, the new
+    run is discarded.
+  - **Queue policy**: if a job comes due while running, the run is held and automatically started
+    when the current run completes.
+- Both settings are persisted to `gosentry.json` and validated on load; defaults ensure
+  backward compatibility.
+
+**Notifications and command input:**
+- Failed job runs now raise a desktop notification (when enabled in Settings) with the job name
+  and failure detail. Notifications fire for scheduled and manual runs; internal activity events
+  are not notified.
+- Added a Browse button next to the Command field in the job dialog for file picker selection.
+
+**UI and platform integration:**
+- Removed all PySentry legacy code: registry autostart entries (Windows), systemd and desktop
+  file cleanup (Linux).
+- Updated `.gitignore` and `.dockerignore` to track `gosentry.json` / `jobs.json` instead of
+  legacy YAML filenames; added `*.yaml` wildcard to ignore legacy files during import.
+- Moved developer documentation (Requirements, Build, Run From Source, Project Layout, Dependencies)
+  out of README into `docs/DEVELOPMENT.md`. README now focuses on end-user content.
+
+**Icons and tray:**
+- Regenerated all icon assets with feathered color-to-alpha so the rounded-tile boundary is
+  transparent — the opaque white halo visible on dark taskbars and trays is gone.
+- Rebuilt `gosentry.ico` as a multi-size file (16 hand-tuned + 32/48/256 from the large PNG)
+  and added a dedicated 16×16 icon for the Windows tray.
+- Per-platform icon wiring: Windows window/taskbar uses the ICO resource so GLFW selects the
+  right frame per slot; Windows tray uses the 16×16 ICO; Linux titlebar uses `IconSmall()` for
+  a crisp ~16 px `_NET_WM_ICON`.
+- Left-clicking the tray icon now shows and focuses the main window without opening the menu;
+  the explicit "Show" menu item is preserved for right-click access.
+
+**Performance:**
+- Upgraded Fyne 2.6.3 → 2.7.4 (systray 1.11.0 → 1.12.1): startup time drops from ~644 ms to
+  ~414 ms (−36%).
+- Moved Windows-only runner tests into `runner_windows_test.go` (guarded by `//go:build windows`)
+  to fix Linux test build.
 
 ## 0.8.0 - 2026-06-23
 

docs/PRE-RELEASE-TASKS.md

@@ -119,7 +119,7 @@ These land together because both edit `domain/job.go` and `storage/store.go`.
 ### Phase 8 — Docs + version
 - [x] P8.1 — `docs/DEVELOPMENT.md`
 - [x] P8.2 — End-user README rewrite
-- [ ] P8.3 — CHANGELOG + ROADMAP updates
+- [x] P8.3 — CHANGELOG + ROADMAP updates
 
 ## Definition of done
 

docs/ROADMAP.md

@@ -4,26 +4,14 @@ This file tracks planned GoSentry work that is larger than a single bug fix.
 
 ## Refactoring Follow-Ups
 
-Loose ends found while verifying the [refactoring plan](REFACTORING.md) against
-its Definition of done. The architecture target is reached and verified on
-Windows, but the items below remain.
+Loose ends found while verifying the refactoring against its Definition of done.
+The architecture target is reached and verified on Windows and Linux.
 
-- **Linux test build is broken (correctness, not cosmetic).** `src/runner/runner_test.go`
-  is a shared (untagged) test file that references Windows-only symbols
-  (`SysProcAttr.HideWindow`, `SysProcAttr.CmdLine`, `windowsShellCommandLine`).
-  The `runtime.GOOS != "windows"` guards are runtime skips and cannot save a file
-  that does not *compile*, so `go test ./...` fails to build on Linux. This
-  contradicts T5.4 ("go test -race clean on both platforms") and the DoD's
-  "green on Windows and Linux." Fix: move the Windows-only tests
-  (`TestShellCommandHidesWindow`, `TestShellCommandUsesWindowsSafeQuoting`, and any
-  peers touching `SysProcAttr` / `windowsShellCommandLine`) into a new
-  `src/runner/runner_windows_test.go` guarded by `//go:build windows`.
-- **File-size guidelines exceeded.** The DoD asks for no `src/ui` file over ~250
-  lines and no single file over ~400:
+- **File-size guidelines exceeded (soft limits).** The DoD suggests no `src/ui` file
+  over ~250 lines and no single file over ~400:
   - `src/ui/jobs_view.go` — 415 lines (over both the ~250 UI target and the ~400 cap).
-  - `src/app/operations.go` — 486 lines (over ~400).
-  - `src/app/operations_test.go` (536) and `src/runner/runner_test.go` (421) also
-    exceed 400 if the cap is read to include test files.
+  - `src/app/run.go` — dispatch logic split out of `operations.go` in this release.
+  - `src/app/operations_test.go` (536) also exceeds 400.
 
   These are soft ("~") limits; revisit when next touching those files rather than
   splitting purely for line count.
@@ -48,27 +36,18 @@ Cleanup checklist:
 - Recheck `.gitignore`, Docker scripts, and packaging scripts for rules or
   branches that only supported early experiments.
 
-## Tray Interaction
+## Tray Interaction (Resolved in 0.9.0)
 
 Improve tray icon interaction: click the tray icon to show and focus the main
 window.
 
-- Unblocked by Fyne 2.7.0, which added `desktop.App.SetSystemTrayWindow(window)`.
-  On Windows, macOS, and most Linux it shows the associated window on left-click;
-  any tray menu then moves to right-click. There is still no raw click /
-  double-click callback, so the behavior is single left-click (the conventional
-  tray gesture), not the double-click originally sketched here.
-- The project is currently on Fyne 2.6.3, so this depends on a Fyne 2.6.3 -> 2.7.x
-  upgrade first (minor bump; re-verify the CGO build under MSYS2 UCRT64 and check
-  for 2.7 breaking changes). Track the upgrade as its own task.
-- As part of that upgrade, **re-measure startup time** with the `GOSENTRY_TIMING`
-  method recorded in [PERFORMANCE.md](PERFORMANCE.md). The Fyne 2.5.3 -> 2.6.3 bump
-  added ~290 ms to startup, all inside `w.Show()`; check whether 2.7 recovers any
-  of it or holds steady, and append the result to PERFORMANCE.md.
-- After upgrading, the change in `src/ui/run.go` (configureSystemTray) is small:
-  call `desk.SetSystemTrayWindow(w)` alongside `SetSystemTrayMenu(menu)`. Keep the
-  existing "Show" menu item, which the Fyne docs recommend for less-compliant
-  Linux systems.
+- Upgraded to Fyne 2.7.4, which provides `desktop.App.SetSystemTrayWindow(window)`.
+  Left-clicking the tray icon now shows and focuses the main window without opening
+  the menu; the explicit "Show" menu item remains for right-click access and
+  less-compliant Linux systems.
+- Re-measured startup time with the `GOSENTRY_TIMING` method from [PERFORMANCE.md](PERFORMANCE.md).
+  The Fyne 2.6.3 -> 2.7.4 upgrade recovers ~230 ms (startup drops from ~644 ms to ~414 ms, a
+  −36% improvement). The 2.7.4 startup time and profile improvements are documented in PERFORMANCE.md.
 
 ## Delivery And Packaging