Phase 1: Add enhanced database fields and sorting

- Add 9 new fields to media_items table (language, edition, page_count, goodreads_id, openlibrary_id, google_books_id, copyright_year, genre, subjects)
- Add indexes for new fields (language, genre, page_count, copyright_year, series_order, date_published)
- Add ListMediaItemsSorted SQL query for dynamic sorting
- Update ListMediaItems handler to process sort parameter
- Support 16 sorting options (title, author, created_at, date_published, copyright_year, page_count, genre, series)
- Add /api/media-items/filtered endpoint for advanced filtering
- Register new filtered endpoint in routes

database/schema/schema.sql

@@ -107,6 +107,15 @@ CREATE TABLE media_items (
     date_published DATE,
     publisher VARCHAR(255),
     contributors TEXT,
+    language VARCHAR(10) DEFAULT 'en',
+    edition VARCHAR(255),
+    page_count INTEGER,
+    goodreads_id VARCHAR(20),
+    openlibrary_id VARCHAR(100),
+    google_books_id VARCHAR(100),
+    copyright_year INTEGER,
+    genre VARCHAR(100),
+    subjects TEXT[],
     added_by_admin_id UUID REFERENCES users(id) ON DELETE SET NULL,
     created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
     updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
@@ -246,6 +255,12 @@ CREATE INDEX idx_media_items_title ON media_items(title);
 CREATE INDEX idx_media_items_author ON media_items(author);
 CREATE INDEX idx_media_items_library_id ON media_items(library_id);
 CREATE INDEX idx_media_items_added_by_admin_id ON media_items(added_by_admin_id);
+CREATE INDEX idx_media_items_language ON media_items(language);
+CREATE INDEX idx_media_items_genre ON media_items(genre);
+CREATE INDEX idx_media_items_page_count ON media_items(page_count);
+CREATE INDEX idx_media_items_copyright_year ON media_items(copyright_year);
+CREATE INDEX idx_media_items_series_order ON media_items(series, series_number);
+CREATE INDEX idx_media_items_date_published ON media_items(date_published);
 
 -- GIN indexes for fast fuzzy search using pg_trgm
 CREATE INDEX idx_media_items_title_gin ON media_items USING gin (title gin_trgm_ops);