mohdel v0.111.0

Added

• Speech-to-text via model.transcribe(audio, options?) — a third call
  primitive alongside answer() and image(). One shared adapter posts
  multipart audio to the OpenAI-compatible /audio/transcriptions
  endpoint; registered for groq, mistral, and openai. Audio comes
  from a file:// or data: URI; result is
  { status, text, language, durationSeconds, cost, timestamps }.
  Factory path only for now — thin-gate has no /v1/transcription route
  yet, so the cross-process client cannot transcribe.
• mo transcribe <model> <audio-file> CLI command — MIME type guessed
  from the extension (--mime to override), --language / --prompt
  hints, --json output, duration/cost summary on stderr.
• Catalog support for transcription entries: type: "transcription",
  transcriptionPrice (USD per audio minute), "audio" in
  inputFormat. Cost is duration × per-minute price when the provider
  reports duration, with a token-pricing fallback for OpenAI's
  gpt-4o-*-transcribe models (computeTranscriptionCost in
  _pricing.js).
• Live transcription smoke tests (test/live/transcription.live.test.js),
  key-gated per provider; the audio fixture is a generated sine WAV.

Changed

• README repositioned around the gateway wedge new "How it compares"
  section (LiteLLM, Vercel AI SDK, OpenRouter, raw SDKs).
• package.json description rewritten in searcher vocabulary:
  LiteLLM-style unified API, provider names spelled out, per-call USD
  cost tracking, speech-to-text.