Improve media item search functionality with two key enhancements:
1. Date-prioritized year filtering:
- Prioritize date_published over copyright_year for year range queries
- Fall back to copyright_year when date_published is NULL
- Extract year from date_published timestamp for comparison
2. True exact search matching:
- Replace ILIKE pattern matching with exact equality for quoted queries
- Use search_query directly instead of wildcard pattern for exact matches
- Remove SearchPattern parameter and related wildcard logic
- Add COALESCE handling for author/series NULL values in exact matches
These changes make year filtering more accurate with published dates
and provide genuine exact matching when users wrap queries in quotes.
Refs internal/database/queries/queries.sql:475, internal/services/search.go:62
john-okeefe
be31cc88f1