Fix video not advancing + media not downloading on same-version startup

BUG-009: _on_video_eos was empty (stub). Added Clock.schedule_once
for next_media() when video reaches end of stream.

BUG-008: download_media_files only ran when server_version >
local_version. Added download check in up-to-date branch so media
files are synced even when playlist version hasn't changed.

src/get_playlists_v2.py

@@ -454,6 +454,18 @@ def update_playlist_if_needed(config, playlist_dir, media_dir):
             return playlist_file
         else:
             logger.info("✓ Playlist is up to date")
+            # Even when the playlist version matches, ensure media files exist locally.
+            # The media folder might be empty (e.g. fresh install or deleted files).
+            logger.info("📥 Checking for missing media files...")
+            ssl_manager = auth.ssl_manager if config.get('use_https', True) else None
+            server_url = auth.auth_data.get('server_url', '')
+            downloaded = download_media_files(
+                server_data.get('playlist', []), media_dir, ssl_manager, server_url
+            )
+            if downloaded:
+                server_data['playlist'] = downloaded
+                # Re-save playlist with updated URLs if needed
+                save_playlist(server_data, playlist_dir)
             return playlist_file
     
     except Exception as e:

src/main.py

@@ -1522,6 +1522,9 @@ class SignagePlayer(Widget):
     def _on_video_eos(self, instance):
         """Callback when video reaches end of stream"""
         Logger.debug("SignagePlayer: Video finished playing (EOS)")
+        # Unschedule any pending timer and advance to next media
+        Clock.unschedule(self.next_media)
+        Clock.schedule_once(self.next_media, 0.5)
     
     def _on_video_loaded(self, instance, value):
         """Callback when video is loaded - log video information"""