ASP.NET Core serializes anonymous objects with camelCase, producing
'subsonicResponse' instead of 'subsonic-response'. Fixed by using
Dictionary with explicit key names for all JSON responses.
- Remove custom /ping endpoint that returned non-standard JSON format
- Fix wildcard endpoint to return Subsonic-compatible error responses
- All requests now properly relay to/from the real Subsonic server
- Add DeezerMetadataServiceTests with mocked HTTP responses
- Add LocalLibraryServiceTests for song ID parsing and registration
- Configure xUnit test project with Moq and MVC Testing packages
- Parse Subsonic search3 response (JSON and XML formats)
- Merge local results with external Deezer results
- Local results appear first, then external results
- Add isExternal flag to distinguish sources
- Port JavaScript DeezerDownloader to C#
- Add Deezer API authentication with ARL token
- Implement track download via media.deezer.com API
- Add Blowfish CBC decryption for encrypted chunks (uses OpenSSL)
- Add rate limiting and retry with exponential backoff
- Update config for Deezer ARL tokens
- Configure Subsonic URL to 192.168.1.12:4533
