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/get_playlists_v2.py

@@ -237,7 +237,8 @@ def download_media_files(playlist, media_dir):
         updated_media = {
             'file_name': file_name,
             'url': os.path.relpath(local_path, os.path.dirname(media_dir)),
-            'duration': duration
+            'duration': duration,
+            'edit_on_player': media.get('edit_on_player', False)  # Preserve edit_on_player flag
         }
         updated_playlist.append(updated_media)