GGUF Speech Architecture Detector (utils/gguf_archs.py)

Detects speech and audio GGUF model architectures without heavy package dependencies. Use when parsing model metadata efficiently at import time.

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"""The speech-architecture verdict, as a leaf module with no package baggage.

It lives here rather than beside the rest of the GGUF metadata helpers because
``utils.models.__init__`` eagerly imports ``model_config``, which imports ``yaml``.
``core.inference.llama_cpp`` needs this verdict at import time, and reaching it through
``utils.models`` made the whole models package -- and PyYAML with it -- a hard import
dependency of the chat backend. That

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