v0.1.0 — Initial release

Initial release: two-phase transcribe (cached by content hash) + digest, whisper backend
auto-detection (mlx-whisper / faster-whisper / whisper.cpp / openai-whisper), optional OpenCC
Traditional Chinese conversion, cache management (--cache-info / --clear / --clear-all /
--set-retention, opt-in retention), dual install (manual copy or Claude Code plugin).