Add Docker stack, Reverb live progress, and duplicate upload detection.

Ship FrankenPHP Compose services with Reverb WebSockets for real-time transcription status, skip re-uploading identical audio via content hash, and format disk usage without requiring intl.

resources/js/app.js

@@ -1 +1,11 @@
-//
+import Alpine from 'alpinejs';
+import './echo';
+import { recordingsIndex, transcriptionMonitor } from './transcription';
+import { uploadDropzone } from './upload';
+
+window.Alpine = Alpine;
+window.transcriptionMonitor = transcriptionMonitor;
+window.recordingsIndex = recordingsIndex;
+window.uploadDropzone = uploadDropzone;
+
+Alpine.start();