Backend changes: - Update import paths: bookmann/internal → bookhoard/internal - Rename struct fields: BookmannUUID → BookhoardUUID - Update handler function names: mapContentIdToBookmannUUID → mapContentIdToBookhoardUUID - Update HTTP response headers: X-Bookmann-* → X-Bookhoard-* - Update service and middleware references - Update main.go imports and references This is part 2 of the project rename to Bookhoard.
- Add OPDS feed generation for Kobo compatibility - Support device catalog, search, download, navigation - Add format conversion support