Add comprehensive collection detail page that works for both system collections
(continue-reading, recently-added, not-started) and user collections.
Backend changes:
- Add new /collections/:id route in internal/router/frontend.go
- Fetches collection using GetCollection with UUID parameter
- Determines collection type from QueryType field
- Resolves library_id for system collections
- Converts database.MediaItems to handlers.BookInfo for display
- Renders CollectionDetail template with collection and books data
- Update SectionData struct in internal/handlers/collections.go
- Add CollectionID string field for view all links
- Update BuildSections() in internal/handlers/dashboard.go
- Pass CollectionID to SectionData for proper link generation
- Simplify getViewAllURL() in internal/handlers/dashboard.go
- Return /collections/{collectionID} instead of /section/{type}
- Works uniformly for both system and user collections
Frontend changes:
- Fix CollectionDetail template in templates/collections.templ
- Fix broken div nesting causing compilation error
- Add null check for CoverImagePath to prevent broken images
- Update aspect ratio to modern aspect-[3/4] syntax
- Use responsive widths (w-16 sm:w-20) for mobile/desktop
- Improve card layout with horizontal flex structure
- Add placeholder image fallback for books without covers
- Remove erroneous renderBooks() function call
This change aligns with the backend update where system collections are
now pre-made user collections in the database with query_type fields.
All collections can now use the same CollectionDetail template for a
consistent viewing experience.