refactor: unify cli and runtime wiring for startup and youtube flow

src/main/runtime/cli-command-context-main-deps.test.ts

@@ -9,6 +9,7 @@ test('cli command context main deps builder maps state and callbacks', async ()
     mpvClient: null,
     texthookerPort: 5174,
     overlayRuntimeInitialized: false,
+    youtubePlaybackFlowPending: false,
   };
 
   const build = createBuildCliCommandContextMainDepsHandler({
@@ -84,6 +85,9 @@ test('cli command context main deps builder maps state and callbacks', async ()
     runJellyfinCommand: async () => {
       calls.push('run-jellyfin');
     },
+    runYoutubePlaybackFlow: async () => {
+      calls.push('run-youtube');
+    },
 
     openYomitanSettings: () => calls.push('open-yomitan'),
     cycleSecondarySubMode: () => calls.push('cycle-secondary'),