Add media editing features: WebP support, edit permissions, user auth, server upload

- Migrated to get_playlists_v2 with improved auth system
- Added WebP image format support for playback and editing
- Implemented edit_on_player permission check from server playlist
- Added user authentication layer for edit function (placeholder: player_1)
- Implemented versioned saving with metadata (user, timestamp, version)
- Added server upload functionality for edited media
- Fixed playlist update after intro video completion
- Added hostname and quickconnect_code to player feedback
- Improved error handling for upload failures (non-blocking)

src/player_auth.py

@@ -275,6 +275,8 @@ class PlayerAuth:
         feedback_url = f"{server_url}/api/player-feedback"
         headers = {'Authorization': f'Bearer {auth_code}'}
         payload = {
+            'hostname': self.auth_data.get('hostname'),
+            'quickconnect_code': self.auth_data.get('quickconnect_code'),
             'message': message,
             'status': status,
             'playlist_version': playlist_version,