feat(anime): add anime browser powered by Aniyomi extensions

- Add `subminer anime` / `--anime` and a tray entry to open a browser that searches installed Aniyomi extension sources, shows cover art and episodes, and plays into mpv with overlay/mining attached
- Add an Extensions tab to add repos and install/update/remove sources, and per-source settings for sources needing config
- Support searching all sources at once with streaming, per-source results and status
- Prefer Japanese audio/subtitle tracks from the source and keep the primary subtitle slot reserved for Japanese
- Fix window/tray/Dock handling so the browser and mpv can be switched between without quitting the app or losing the Dock icon
- Add anime.repos, anime.extensionsDir, anime.preferredQuality config keys (no bundled repos or discovery)

src/main/runtime/tray-runtime.ts

@@ -42,6 +42,7 @@ export type TrayMenuActionHandlers = {
   openYomitanSettings: () => void;
   openConfigSettings: () => void;
   openSyncUi: () => void;
+  openAnimeBrowser: () => void;
   exportLogs: () => void;
   openJellyfinSetup: () => void;
   showJellyfinDiscovery: boolean;
@@ -113,6 +114,10 @@ export function buildTrayMenuTemplateRuntime(handlers: TrayMenuActionHandlers):
       label: 'Sync Stats && History',
       click: handlers.openSyncUi,
     },
+    {
+      label: 'Browse Anime',
+      click: handlers.openAnimeBrowser,
+    },
     {
       label: 'Export Logs',
       click: handlers.exportLogs,