feat(animetosho): add English/Japanese subtitle download integration (#159)

src/cli/args.test.ts

@@ -115,6 +115,7 @@ test('parseArgs captures session action forwarding flags', () => {
     '--toggle-stats-overlay',
     '--mark-watched',
     '--open-jimaku',
+    '--open-animetosho',
     '--open-youtube-picker',
     '--open-playlist-browser',
     '--toggle-primary-subtitle-bar',
@@ -132,6 +133,7 @@ test('parseArgs captures session action forwarding flags', () => {
   assert.equal(args.toggleStatsOverlay, true);
   assert.equal(args.markWatched, true);
   assert.equal(args.openJimaku, true);
+  assert.equal(args.openAnimetosho, true);
   assert.equal(args.openYoutubePicker, true);
   assert.equal(args.openPlaylistBrowser, true);
   assert.equal(args.togglePrimarySubtitleBar, true);