v3.6.0

Added

• .ncm file support — FreeBird now decodes NetEase's downloaded .ncm files in addition to the existing .uc / .uc! stream-cache files. fb scan and fb watch pick up .ncm files automatically (same commands, no new flags); each input is routed to the right decoder by extension. Unlike cache files, .ncm files carry their own metadata and cover art, so they decode fully offline — no NetEase API call is made for them.
  • Embedded metadata + naming. Title, artist(s), and album are read straight from inside the file; output is named Artist - Title.flac (multi-artist joined with &), falling back to the original filename when the embedded metadata is absent.
  • Embedded cover art. The album cover stored in the .ncm is written into the output — FLAC via metaflac (PCM-MD5 preserved), MP3/M4A via TagLibSharp. --no-write-tags suppresses both tags and cover.
  • Same safety guarantees as the .uc path. Atomic staging writes, integrity checks (off/l1/l3/auto), quarantine-with-sidecar on a corrupt/undecodable file, and resolution markers so fb watch decodes each .ncm exactly once and skips it thereafter. Inputs are never modified.