Goal: Go-based CLI that mirrors CUETools verify/repair using CTDB and AccurateRip. Uses ffmpeg for decoding and ports CUETools algorithms (TOCID, AccurateRip/CTDB CRCs, parity logic).

• cmd/ctdbtools: CLI entrypoint(s).
• internal/cli: argument parsing, command wiring.
• internal/toc: TOC/CUE parsing, TOCID/AccurateRip IDs.
• internal/hashes: CRC/AccurateRip/CTDB hashing + parity helpers.
• internal/accuraterip: AccurateRip querying + matching logic.
• internal/ctdb: CTDB query/submit/repair logic.
• internal/audio: ffmpeg wrappers and PCM handling.
• docs: plan, progress, research notes.

Work in progress; core algorithms and CLI wiring not yet implemented.