- Extracted common JSON parsing helpers into internal/jsonutil
- Removed duplicated helper functions from provider packages
- Removed dead code in internal/app/app.go and downloader.go
- Replaced deprecated strings.Title with jsonutil.TitleCase
- Added graceful shutdown with signal handling in main.go
- Split monolithic cmd/rip/main.go into args.go, helpers.go, lastfm.go, search.go
Replace Deezer yt-dlp usage with native ARL session + media.get_url resolution, add BF_CBC_STRIPE decryption in downloader, and wire cipher-aware Deezer downloads through the main rip pipeline. Includes validation hardening and metadata/source-id improvements used by tagging flows.
Improve Deezer full-quality mode behavior by returning explicit errors when yt-dlp mode fails with fallback disabled, parse structured API errors, and correctly map explicit_lyrics booleans into explicit tags.
This brings the Go CLI closer to upstream behavior with global flag handling and clearer resolve failures, while adding Tidal video downloads plus initial Deezer and SoundCloud no-account flows for broader end-to-end coverage.
