Photo management and various fixes.

- Added admin page to upload and manage media.
- Fixed /setup route.
- Updated dockerfiles to support admin media.
- Improved deploy docs.

assets/app.js

@@ -6,4 +6,4 @@
  */
 import './styles/app.css';
 
-console.log('This log comes from assets/app.js - welcome to AssetMapper! 🎉');
+console.log('SomniaRooms Admin Panel - Assets loaded! 🎉');