Add Fortify auth, Flux dark mode, demo seed, and Docker hot reload.

Protect recordings per user, seed a demo login on container start, and bind-mount the app with Vite HMR for local Compose development.

app/Http/Controllers/TranscribeController.php

@@ -5,6 +5,7 @@ namespace App\Http\Controllers;
 use App\Http\Requests\TranscribeRecordingRequest;
 use App\Models\Recording;
 use Illuminate\Http\RedirectResponse;
+use Illuminate\Support\Facades\Gate;
 
 class TranscribeController extends Controller
 {
@@ -15,6 +16,8 @@ class TranscribeController extends Controller
      */
     public function __invoke(TranscribeRecordingRequest $request, Recording $recording): RedirectResponse
     {
+        Gate::authorize('transcribe', $recording);
+
         $recording->queueLocalTranscription();
 
         return back()->with('success', 'Transcription started. Progress updates below.');