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/config/definitions/options-integrations.ts

@@ -566,6 +566,27 @@ export function buildIntegrationConfigOptionRegistry(
       defaultValue: defaultConfig.mpv.aniskipButtonKey,
       description: 'mpv key used to skip the detected intro while the skip prompt is visible.',
     },
+    {
+      path: 'anime.extensionsDir',
+      kind: 'string',
+      defaultValue: defaultConfig.anime.extensionsDir,
+      description:
+        'Directory holding Aniyomi extension .apk files. Empty uses <userData>/anime-extensions.',
+    },
+    {
+      path: 'anime.repos',
+      kind: 'array',
+      defaultValue: defaultConfig.anime.repos,
+      description:
+        'Extension repository index URLs (any https .json index, e.g. https://.../index.min.json). Empty by default; SubMiner ships no repositories.',
+    },
+    {
+      path: 'anime.preferredQuality',
+      kind: 'string',
+      defaultValue: defaultConfig.anime.preferredQuality,
+      description:
+        'Preferred stream quality label, matched as a substring (for example: 1080). Empty uses the source order.',
+    },
     {
       path: 'jellyfin.enabled',
       kind: 'boolean',