ADDED Requirements

Requirement: Warm CPU sidecar

The ASR engine SHALL keep Parakeet TDT 0.6B v3 INT8 loaded in a long-lived process. A second transcribe of the same clip SHALL NOT reload encoder weights. Inference SHALL use ONNX Runtime CPUExecutionProvider only.

Scenario: two clips

• GIVEN the sidecar has already transcribed one wav
• WHEN a second wav is sent
• THEN wall time excludes model download and GPU memory.used is unchanged