Perfect the caching strategy as requested:
1. Database check first (fastest lookup)
2. NFO file extraction with database caching
3. API calls only when absolutely necessary
Movies: Fixed order from NFO->DB->API to DB->NFO->API
TV Shows: Added missing NFO extraction tier between database and API
Benefits:
- First scan: Extract existing NFOGuard data from NFOs and cache in DB
- Subsequent scans: ~99% database cache hits, minimal API calls
- NFO recovery: Rebuild database from existing NFO files
- Webhook processing: Cache webhook dates in database immediately
Expected performance: Manual scans now use 3-tier optimization