- Implemented Audiobookshelf integration for uploading audiobooks with metadata, cover, chapters, and subtitles.
- Added configuration options for Audiobookshelf in the settings page, including base URL, API token, library ID, and upload preferences.
- Introduced Calibre OPDS integration for fetching and downloading resources from a Calibre OPDS catalog.
- Enhanced job processing to include post-completion hooks for Audiobookshelf uploads.
- Updated settings template to include new integration options and fields.
- Added utility functions for metadata normalization and chapter extraction.
- Included HTTP client functionality for both Audiobookshelf and Calibre OPDS interactions.
- Updated dependencies to include httpx for HTTP requests.
