bc7685b94f
scripts/probe_deepgram.py opens a streaming WebSocket to Deepgram Nova-3, sends synthesized 16kHz mono PCM in 100ms chunks, and measures first-partial-transcript latency over N iterations (default 20). Prints min/median/p95/mean. If DEEPGRAM_API_KEY is missing, prints a clear KEY_MISSING banner and exits 0 — the probe infrastructure is the deliverable; live numbers come when keys are provisioned. ---ci--- phase: 1 milestone: v0.1 plan: 01 task: 01-02 status: execute persona: backend-engineer requirements: covered: [REQ-VOICE-03, REQ-NFR-LAT-01] ---/ci---