stt.api 0.2.0

• Remove audio.whisper backend
• Remove gpu.ctl integration
• Remove processx dependency (never implemented)
• Backends are now: whisper (native R torch) and OpenAI-compatible API

stt.api 0.1.0

• Initial release
• Support for OpenAI-compatible speech-to-text APIs
• Local server support (LM Studio, OpenWebUI, Whisper containers)
• Optional whisper package integration for local transcription
• Segment-level timestamps with word-level timing when available