Post preview expectations before build

[lopugit]

Summary

• publish the ordinary Develop preview's expected persistent URL and UTC ready estimate in the protected authorization job, before product checkout, dependencies, or build
• preserve that original estimate through immutable-URL and terminal-status comment updates
• retry the pinned pnpm@10.12.1 Corepack bootstrap up to three times in both secretless build paths after a live transient Node/Undici transport assertion
• add the required PR Move admin preview publisher to github-actions #603 controller implementation and live-proof note

Validation

• Develop preview controller self-test: 107/107
• Admin preview controller self-test: pass
• Workflow control-plane contract: pass
• JavaScript syntax checks: pass
• workflow YAML parse: pass
• git diff --check: pass
• semantic Graphify refresh through the local Codex proxy; hooks and merge driver verified

Live evidence prompting the bootstrap retry

Run 33754126360 reached the new exact-SHA all-base controller but a single corepack prepare pnpm@10.12.1 process hit Node's Undici assert(!this.paused) transport assertion. Run 33741566074 attempt 2 succeeded end-to-end for PR #595 at the exact same pinned toolchain and established the expected deployment/alias proof.

[github-actions]

❌ Develop S3 preview failed

• Commit: 8367aba9
• Environment: Vercel Custom Environment develop
• Expected preview: https://pr-605.previews.dev.thingtime.com

The ordinary generated Vercel Preview remains available on the shared development runtime. Re-run this workflow after correcting the deployment, DNS, or CORS configuration.

Generic Vercel Preview deployments use the shared development runtime; this controller adds the stable exact-SHA alias and marker-scoped cleanup.