feat: Phase O Windows-native integration + settings search

- Taskbar progress bar: renderer pushes summarizeQueue aggregate over a new
  taskbar:progress channel (App store subscription); setProgressBar normal/error
- System tray (src/main/tray.ts) + minimize-to-tray (Settings.minimizeToTray);
  close hides to tray, isQuitting guards real exits; icon via getAppIconPath()
  (build/icon.ico added to extraResources)
- Jump list: app.setUserTasks "Open AeroFetch" (thumbnail toolbar deferred)
- Settings search: filters the ~11 SettingsView cards live by text match

Overlay badge deferred (needs a drawn NativeImage). typecheck + test (192) +
build all clean. Roadmap: Phase O COMPLETE.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/main/binaries.ts

@@ -13,6 +13,17 @@ export function getBinDir(): string {
   return is.dev ? join(app.getAppPath(), 'resources', 'bin') : join(process.resourcesPath, 'bin')
 }
 
+/**
+ * The app icon (.ico), for the system tray. In dev it's the repo's build/icon.ico;
+ * in a packaged build, electron-builder's extraResources copies it to
+ * <resources>/icon.ico (see electron-builder.yml).
+ */
+export function getAppIconPath(): string {
+  return is.dev
+    ? join(app.getAppPath(), 'build', 'icon.ico')
+    : join(process.resourcesPath, 'icon.ico')
+}
+
 /**
  * AeroFetch keeps its OWN writable copy of yt-dlp.exe under userData, separate
  * from the read-only bundled seed in resources/bin. The managed copy is what