fix: read studio.deploy workflow run instead of Request-parse HOLD

[groupthinking]

Canonical issue

Residual after #1850. AXIOM re-dogfood XYMcBrFSJ4c on dpl_3o6VDNVej7vkA82TQKDNWhkxLGYs HOLDs with Failed to read workflow run (receipt er:gate:v1:wrun_01M2A9Z9SYXD59NG211W9N8EQA). Progress: Failed to read workflow return value is gone.

Outcome

Studio Attempt deploy can read the Workflow DevKit run. GET no longer HOLDs solely because undici fetch treated getRun()’s Request as a URL string. A real deploy can pass through a backend-supplied https live URL + EventRelay receipt. Missing evidence still HOLDs / REJECTs / ESCALATEs with a visible receipt chip. No “Deploy completed” overclaim.

Scope

• Included:
  • Compat-wrap withWorldVercelFetch: string/URL fetches stay on undici (POST start() / WDK start() 500 on production: fetch failed (undici private-field / #P) #1538); Request inputs stay on Next/Node fetch (getRun)
  • GET /api/workflows/studio-deploy/:runId never emits Failed to read workflow run; Request-parse errors return running so the poller can retry
  • Poller treats unread-run 500s as non-terminal
  • Type-cast the compat wrapper as unknown as typeof fetch so Next preview tsc accepts mixed undici/DOM Response types
• 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 the backend job is still transcribing when WDK step retries exhaust, Studio HOLDs with that real job reason (not the generic unread-run string)
• Rollback: revert this PR; G.A.T.E. contract unchanged

Verification

• Focused tests: 88 passed (world-vercel-fetch, GET [runId], studio-workflow, gate-transition, pipeline-async-job, studio-pipeline-status, pipeline-backend-health, POST studio-deploy, isolation); 39/39 re-verified after the tsc cast
• Required CI on this head (fe434762a)
• Review threads resolved

Production evidence

• Prod logs on dpl_3o6VDNVej7vkA82TQKDNWhkxLGYs: GET /api/workflows/studio-deploy/wrun_01M2A9Z9SYXD59NG211W9N8EQA → 500 TypeError: Failed to parse URL from [object Request] / ERR_INVALID_URL input [object Request]
• Preview dpl_HWDVNQVPgmJecxUjJcK4sW3z7N9g failed tsc on the first head; this head drops the Response cast.
• After merge: expect prod READY dpl_… on v0-uvai. AXIOM re-dogfoods XYMcBrFSJ4c — must not HOLD for Failed to read workflow run or Failed to read workflow return value.

Agent handoff

• One canonical cut (studio.deploy workflow-run Request parse)
• 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 on the Vercel → api.uvai.io path (Hayden-only secret; not this cut)

  

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated
v0-uvai	Ready	Preview, v0	Sep 12, 2026 8:13am UTC

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Dependency Review

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

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[linear-code]

GRV-528