- Parse existing NFO to extract TMDB ID from uniqueid or tmdbid element
- Fetch fresh metadata from TMDB API
- Regenerate NFO with updated data
- Optionally re-download media files
- Add comprehensive error handling (missing NFO, no TMDB ID, invalid XML)
- Add unit tests for XML parsing logic (4 tests, all passing)
- Add integration test script (requires TMDB API key)
