fix: Windows command quoting, atomic JSON/log writes, restore dropped test

Implements items 1-3 of the whole-project review's suggested order
(docs/PROJECT_REVIEW_PLAN.md):

- Restore TestJobListViewIsCompact, accidentally dropped by 5b0e6fe;
  drop the redundant TestDefaultConfigUsesDetailedJobList row from
  TESTS.md and document the two other doc gaps the review found.
- Fix quoteLeadingWindowsProgramPath to find the earliest file-extension
  match at a word boundary instead of the first extension in list order,
  so a .bat/.cmd command whose argument ends in .exe no longer has its
  whole command line mistaken for the program path.
- Write gosentry.json, jobs.json, and run log files atomically (temp
  file + rename) so a crash or power loss mid-write can no longer leave
  a truncated file. Wire Service.Stop() into the app shutdown path so
  it actually runs, cancelling the run context for in-flight runs.

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

src/domain/config_test.go

@@ -26,3 +26,24 @@ func TestResolveStartHidden(t *testing.T) {
 		}
 	}
 }
+
+// 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.
+func TestJobListViewIsCompact(t *testing.T) {
+	cases := []struct {
+		view JobListView
+		want bool
+	}{
+		{JobListViewCompact, true},
+		{JobListViewDetailed, false},
+		{"", false},
+		{"Compact", false},
+		{"tiny", false},
+	}
+	for _, tc := range cases {
+		if got := tc.view.IsCompact(); got != tc.want {
+			t.Errorf("JobListView(%q).IsCompact() = %v, want %v", tc.view, got, tc.want)
+		}
+	}
+}