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)

launcher/commands/app-command.ts

@@ -16,6 +16,10 @@ type AppCommandDeps = {
     appPath: string,
     logLevel: LauncherCommandContext['args']['logLevel'],
   ) => void;
+  launchAnimeBrowserDetached: (
+    appPath: string,
+    logLevel: LauncherCommandContext['args']['logLevel'],
+  ) => void;
 };
 
 const defaultAppCommandDeps: AppCommandDeps = {
@@ -23,6 +27,8 @@ const defaultAppCommandDeps: AppCommandDeps = {
   launchSyncUiDetached: (appPath, logLevel) =>
     launchAppCommandDetached(appPath, ['--sync-window'], logLevel, 'sync-ui'),
   launchAppBackgroundDetached,
+  launchAnimeBrowserDetached: (appPath, logLevel) =>
+    launchAppCommandDetached(appPath, ['--anime'], logLevel, 'anime'),
 };
 
 export function runAppPassthroughCommand(
@@ -37,6 +43,11 @@ export function runAppPassthroughCommand(
     deps.runAppCommandWithInherit(appPath, ['--settings']);
     return true;
   }
+  if (args.animeBrowser) {
+    // Detached: the browser window is long-lived and owns the bridge process.
+    deps.launchAnimeBrowserDetached(appPath, args.logLevel);
+    return true;
+  }
   if (args.syncUi) {
     deps.launchSyncUiDetached(appPath, args.logLevel);
     return true;