* fix(audio): fall back nested STT models when the prefix provider has no credentials
Bare ids such as deepgram/nova-3 prefix-match the native provider and 400
when that key is missing, even if OpenRouter lists the same model. Retry
the gateway and mention qualified catalog ids in the error.
Closes#10583
* test(audio): scope whisper-1 fallback test to a 2-provider registry
nanogpt was added to AUDIO_TRANSCRIPTION_PROVIDERS (already merged,
unrelated to this fix) with a bare "whisper-1" model id, which now
intercepts findAlternateAudioProvider's first candidate before the
qualified-alias branch this test exists to cover. Scope the test to a
local {openai, openrouter} registry subset so it deterministically
exercises the qualified `${provider}/${model}` fallback regardless of
future providers that also list a bare "whisper-1" id.
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
---------
Co-authored-by: Ravi Tharuma <RaviTharuma@users.noreply.github.com>
Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
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