- Extend `strip_media` to support video files using `ffmpeg`. - Use `ffmpeg -map_metadata -1 -c copy` to strip global metadata. - Support formats: mp4, m4v, mov, webm, mkv, avi. - Add `ffmpeg_path` configuration option. - Implement robust relative path handling (`user/` heuristic) to support jailed environments. - Enforce strict checks on startup: fail if tools (mogrify/ffmpeg) are missing when enabled.