This update makes unattended signage more reliable:
• CSV Auto-Check now detects and applies changes while playback stays open.
• Changes to item order, descriptions, media type, and photo duration are now recognized—even when media URLs stay the same.
• New media is downloaded and validated before the playlist changes.
• Updated playlists begin from the top after the current loop finishes.
• Invalid or unavailable media no longer replaces a working cached playlist.
• Improved background and resume behavior, overlapping refresh protection, offline caching, and media recovery.