feat: add a compact job list view to the Jobs tab

Each job can now render as a single line — name on the left, status on the
right — instead of the three-line block, so many more jobs fit without
scrolling. A toggle button beside the Folder filter switches between the two
modes and is labelled with the action it performs, matching the existing
"Disable auto" convention.

The choice is persisted as Config.JobListView ("detailed" / "compact", stored
as job_list_view in gosentry.json). Empty, legacy, and unrecognised values all
normalize to detailed, so existing installs keep the current look and the file
never gains a value no reader understands.

Selection, the details panel, the folder filter, and live status updates work
unchanged in both modes.

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

src/ui/jobs_view_test.go

@@ -3,7 +3,12 @@ package ui
 import (
 	"testing"
 
+	"gitea.mixdep.ru/mix/gosentry/src/app"
 	"gitea.mixdep.ru/mix/gosentry/src/domain"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/test"
+	"fyne.io/fyne/v2/widget"
 )
 
 func TestFilterValue(t *testing.T) {
@@ -93,3 +98,179 @@ func TestFilteredJobIndexesEmptySlice(t *testing.T) {
 		t.Errorf("empty job list should return empty indexes, got %v", got)
 	}
 }
+
+func TestNextJobListViewFlipsBothWays(t *testing.T) {
+	cases := []struct {
+		current, want domain.JobListView
+	}{
+		{domain.JobListViewDetailed, domain.JobListViewCompact},
+		{domain.JobListViewCompact, domain.JobListViewDetailed},
+		// Empty and unknown values read as detailed, so they flip to compact.
+		{"", domain.JobListViewCompact},
+		{"tiny", domain.JobListViewCompact},
+	}
+	for _, tc := range cases {
+		if got := nextJobListView(tc.current); got != tc.want {
+			t.Errorf("nextJobListView(%q) = %q, want %q", tc.current, got, tc.want)
+		}
+	}
+}
+
+// findFirst walks a widget tree depth-first and returns the first object the
+// match function accepts. Tests use it to reach widgets newJobsView builds
+// internally rather than returning.
+func findFirst(root fyne.CanvasObject, match func(fyne.CanvasObject) bool) fyne.CanvasObject {
+	if match(root) {
+		return root
+	}
+	container, ok := root.(*fyne.Container)
+	if !ok {
+		return nil
+	}
+	for _, child := range container.Objects {
+		if found := findFirst(child, match); found != nil {
+			return found
+		}
+	}
+	return nil
+}
+
+// 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.
+func jobsSidebar(t *testing.T, content fyne.CanvasObject) fyne.CanvasObject {
+	t.Helper()
+	found := findFirst(content, func(o fyne.CanvasObject) bool {
+		wrapper, ok := o.(*fyne.Container)
+		if !ok {
+			return false
+		}
+		_, ok = wrapper.Layout.(minWidthLayout)
+		return ok
+	})
+	if found == nil {
+		t.Fatal("jobs view has no fixed-width sidebar")
+	}
+	return found
+}
+
+func jobsList(t *testing.T, content fyne.CanvasObject) *widget.List {
+	t.Helper()
+	found := findFirst(jobsSidebar(t, content), func(o fyne.CanvasObject) bool {
+		_, ok := o.(*widget.List)
+		return ok
+	})
+	if found == nil {
+		t.Fatal("jobs sidebar contains no list widget")
+	}
+	return found.(*widget.List)
+}
+
+func jobsViewToggle(t *testing.T, content fyne.CanvasObject) *widget.Button {
+	t.Helper()
+	found := findFirst(jobsSidebar(t, content), func(o fyne.CanvasObject) bool {
+		button, ok := o.(*widget.Button)
+		return ok && (button.Text == "Compact" || button.Text == "Detailed")
+	})
+	if found == nil {
+		t.Fatal("jobs sidebar has no view toggle button")
+	}
+	return found.(*widget.Button)
+}
+
+// TestJobListViewToggleShrinksRowsAndPersists is the end-to-end guard for the
+// compact view: one tap must shrink the list rows, relabel the button with the
+// opposite action, and reach the config — and toggling back must undo all
+// three. Row height is measured through List.CreateItem/UpdateItem because
+// that is exactly what widget.List caches as the row height.
+func TestJobListViewToggleShrinksRowsAndPersists(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+	w := testApp.NewWindow("test")
+	defer w.Close()
+
+	store := newTestStore(t)
+	jobs := []domain.Job{
+		{ID: 1, Name: "Nightly backup", Folder: "Maintenance", Schedule: "@every 1m", Command: "echo hi", Enabled: true},
+	}
+	svc := app.NewService(store, jobs)
+	defer svc.Stop()
+
+	content, _ := newJobsView(w, svc)
+	w.SetContent(content)
+
+	list := jobsList(t, content)
+	viewButton := jobsViewToggle(t, content)
+	if viewButton.Text != "Compact" {
+		t.Fatalf("a default config should open detailed: button text = %q, want %q", viewButton.Text, "Compact")
+	}
+
+	rowHeight := func() float32 {
+		t.Helper()
+		row := list.CreateItem()
+		list.UpdateItem(0, row)
+		return row.MinSize().Height
+	}
+	detailedHeight := rowHeight()
+
+	test.Tap(viewButton)
+	if store.Config.JobListView != domain.JobListViewCompact {
+		t.Errorf("after tapping, Config.JobListView = %q, want %q", store.Config.JobListView, domain.JobListViewCompact)
+	}
+	if viewButton.Text != "Detailed" {
+		t.Errorf("after tapping, button text = %q, want %q", viewButton.Text, "Detailed")
+	}
+	compactHeight := rowHeight()
+	if compactHeight >= detailedHeight {
+		t.Errorf("compact row height = %v, want less than detailed %v", compactHeight, detailedHeight)
+	}
+
+	test.Tap(viewButton)
+	if store.Config.JobListView != domain.JobListViewDetailed {
+		t.Errorf("after tapping back, Config.JobListView = %q, want %q", store.Config.JobListView, domain.JobListViewDetailed)
+	}
+	if viewButton.Text != "Compact" {
+		t.Errorf("after tapping back, button text = %q, want %q", viewButton.Text, "Compact")
+	}
+	if got := rowHeight(); got != detailedHeight {
+		t.Errorf("row height after switching back = %v, want the original %v", got, detailedHeight)
+	}
+}
+
+// TestJobListViewCompactConfigOpensCompact checks the persisted preference is
+// honoured at build time, not just after a tap.
+func TestJobListViewCompactConfigOpensCompact(t *testing.T) {
+	testApp := test.NewApp()
+	defer testApp.Quit()
+	w := testApp.NewWindow("test")
+	defer w.Close()
+
+	store := newTestStore(t)
+	store.Config.JobListView = domain.JobListViewCompact
+	svc := app.NewService(store, nil)
+	defer svc.Stop()
+
+	content, _ := newJobsView(w, svc)
+	w.SetContent(content)
+
+	if got := jobsViewToggle(t, content).Text; got != "Detailed" {
+		t.Errorf("button text for a compact config = %q, want %q", got, "Detailed")
+	}
+}
+
+func TestViewToggleTextNamesTheAction(t *testing.T) {
+	cases := []struct {
+		current domain.JobListView
+		want    string
+	}{
+		{domain.JobListViewDetailed, "Compact"},
+		{domain.JobListViewCompact, "Detailed"},
+		{"", "Compact"},
+		{"tiny", "Compact"},
+	}
+	for _, tc := range cases {
+		if got := viewToggleText(tc.current); got != tc.want {
+			t.Errorf("viewToggleText(%q) = %q, want %q", tc.current, got, tc.want)
+		}
+	}
+}