STT_MODEL_CATALOG moves to tools/transcription_common.py and becomes the one table
behind the `hermes tools` picker, the dashboard selects and the auto-correction
sets. Before this, the dashboard and Desktop offered models for only four providers,
Mistral and xAI had no select, DeepInfra had no model field, and Groq still listed
distil-whisper-large-v3-en, which Groq shut down on 2025-08-23. A config naming it
now remaps to whisper-large-v3-turbo.
Mistral Voxtral STT comes back to the picker and the dashboard provider list. It had
been hidden since the 2026-05-12 mistralai quarantine, and the pin is a verified-clean
2.4.8 again. DeepInfra's picker reads its live STT catalog.
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