Speed up the live analyzer demo path

[azizu06]

Summary

• send normalized public YouTube watch URLs directly to Gemini, retaining the existing yt-dlp/Gemini Files path as an automatic fallback
• use Gemini 3.5 Flash low thinking for extraction, verification/tool turns, and synthesis to reduce demo latency
• repair the opt-in live integration and Chromium smoke evidence without exposing credentials

Evidence

• measured five-source median: 26.2s (21.1–40.1s), down from a 63.5s baseline
• repaired live Chromium smoke: 23.3s through /analyze, SSE, scorecard, and citations
• Node 22 integration gate: typecheck passed; 320 unit tests passed with 6 expected skips; production build passed
• git diff --check and secret-pattern scan passed

Known risk

• Cap Score drift between live Gemini runs predates this change; the same-source low/medium A/B produced the same score and result structure
• TikTok URL ingestion remains outside the proven demo path

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Project	Deployment	Actions	Updated (UTC)
capcheck	Ready	Preview, Comment	Jul 12, 2026 1:44am

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