fix: wait for studio.deploy receipt instead of UNKNOWN-checks HOLD

[groupthinking]

Canonical issue

Residual after #1853. AXIOM on dpl_8wx8iEfUcwNpWQNHwvpMsyLh9xsW / XYMcBrFSJ4c HOLDs with Deploy still running. No verified deploy receipt — UNKNOWN checks are not a live URL. (receipt er:gate:v1:wrun_01M2ABB1NJ5TFZ153CTRNTPNW9, pack 95aeb4b727073c57e092a5d8eb11c4fbd91924f9850e6baa15636b6c08e7e96d). Cleared: workflow-run miss, return-value miss, BACKEND_URL.

Outcome

Studio Attempt deploy waits for a verified https live URL + EventRelay receipt. It no longer HOLDs solely because the client stopped while the WDK run was still running and labeled that as UNKNOWN checks. Missing evidence still HOLDs / REJECTs / ESCALATEs with a visible receipt chip. No “Deploy completed” overclaim.

Scope

• Included:
  • Do not abandon video-to-software on 50s timeout to start a transcript-only /videos/process job; timeout is retryable. Timeout window is 180s.
  • Client poller waits until terminal (default 150 × 2s) and, if still in flight, HOLDs with Deploy job {id} still {status}
  • WDK pollJobStep reads the backend job across ~3 minutes per attempt before retrying
  • Outcome copy no longer uses UNKNOWN checks are not a live URL as the Attempt-deploy HOLD
• Explicitly excluded:
  • Inventing a live URL
  • Weakening G.A.T.E. claim guard
  • Reopening fix: wire BACKEND_URL so studio.deploy can emit a live URL receipt #1848 BACKEND_URL pin
  • Setting EVENTRELAY_API_KEY

Risk

• Risk level: low
• Failure mode: if video-to-software never returns a hostname URL, Studio HOLDs with the real timeout/job reason (not UNKNOWN checks)
• Rollback: revert this PR; G.A.T.E. contract unchanged

Verification

• Focused tests: 83 passed (studio-workflow, studio-pipeline-status, gate-transition, pipeline-async-job, studio-deploy, POST + GET studio-deploy, isolation)
• Required CI on this head
• Review threads resolved

Production evidence

• Prod logs on dpl_8wx8iEfUcwNpWQNHwvpMsyLh9xsW: video-to-software TimeoutError at 08:22:00, then pollJobStep FatalError Deploy job job_96f498640b still transcribing at 08:22:55. Client GETs were 200 while runStatus was still running.
• After merge: expect prod READY dpl_… on v0-uvai / uvai.io. AXIOM re-dogfood XYMcBrFSJ4c must not HOLD for UNKNOWN checks or the three cleared residuals.

Agent handoff

• One canonical cut (wait for verified deploy receipt)
• No competing open PR for the same residual
• Acceptance criteria satisfied on prod Attempt deploy
• Required checks pass on the current head
• Human decision requested only if EVENTRELAY_API_KEY is missing (Hayden-only secret; not this cut)

  

[vercel]

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Project	Deployment	Actions	Updated
v0-uvai	Ready	Preview, v0	Sep 12, 2026 8:30am UTC

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Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

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[linear-code]

GRV-529