feat(youtube): add YouTube browser window and Whisper subtitle source (#273)

src/config/definitions/defaults-core.ts

@@ -115,6 +115,7 @@ export const CORE_DEFAULT_CONFIG: Pick<
   },
   youtube: {
     primarySubLanguages: ['ja', 'jpn'],
+    subtitleSource: 'youtube',
     mediaCache: {
       mode: 'direct',
       maxHeight: 720,

src/config/definitions/defaults-integrations.ts

@@ -13,7 +13,6 @@ export const INTEGRATIONS_DEFAULT_CONFIG: Pick<
   | 'jellyfin'
   | 'discordPresence'
   | 'ai'
-  | 'youtubeSubgen'
 > = {
   ankiConnect: {
     enabled: true,
@@ -179,15 +178,4 @@ export const INTEGRATIONS_DEFAULT_CONFIG: Pick<
       'You are a translation engine. Return only the translated text with no explanations.',
     requestTimeoutMs: 15_000,
   },
-  youtubeSubgen: {
-    whisperBin: '',
-    whisperModel: '',
-    whisperVadModel: '',
-    whisperThreads: 4,
-    fixWithAi: false,
-    ai: {
-      model: '',
-      systemPrompt: '',
-    },
-  },
 };

src/config/definitions/domain-registry.test.ts

@@ -85,13 +85,6 @@ const UNDOCUMENTED_LEAVES: ReadonlySet<string> = new Set([
   'subtitleStyle.textShadow',
   'subtitleStyle.WebkitTextStroke',
   'subtitleStyle.wordSpacing',
-  'youtubeSubgen.ai.model',
-  'youtubeSubgen.ai.systemPrompt',
-  'youtubeSubgen.fixWithAi',
-  'youtubeSubgen.whisperBin',
-  'youtubeSubgen.whisperModel',
-  'youtubeSubgen.whisperThreads',
-  'youtubeSubgen.whisperVadModel',
 ]);
 
 test('config option registry includes critical paths and has unique entries', () => {

src/config/definitions/options-core.ts

@@ -119,6 +119,18 @@ export function buildCoreConfigOptionRegistry(
       description:
         'Comma-separated primary subtitle language priority for managed subtitle auto-selection.',
     },
+    {
+      path: 'youtube.subtitleSource',
+      kind: 'enum',
+      enumValues: ['youtube', 'whisper'],
+      enumLabels: {
+        youtube: 'Download YouTube captions',
+        whisper: 'Generate with Whisper',
+      },
+      defaultValue: defaultConfig.youtube.subtitleSource,
+      description:
+        'Where primary YouTube subtitles come from. Whisper transcribes the audio locally using the subtitleGeneration settings.',
+    },
     {
       path: 'youtube.mediaCache.mode',
       kind: 'enum',

src/config/definitions/template-sections.ts

@@ -183,7 +183,9 @@ const INTEGRATION_TEMPLATE_SECTIONS: ConfigTemplateSection[] = [
     description: [
       'Defaults for managed subtitle language preferences and YouTube subtitle loading.',
     ],
-    notes: ['Hot-reload: primarySubLanguages applies to the next YouTube subtitle load.'],
+    notes: [
+      'Hot-reload: primarySubLanguages and subtitleSource apply to the next YouTube subtitle load.',
+    ],
     key: 'youtube',
   },
   {