[regression] Daily CI Regression Audit — 34429740906 #59849

Pattern 1 — Workflow lock file drift (2 of 3 failed runs: run #52856 / #52854)
Job Check workflow markdown/lock drift fails with:

ERROR: Workflow lock files are out of sync with their markdown sources.
  .github/workflows/smoke-cursor.lock.yml

This indicates .github/workflows/smoke-cursor.md was edited without running make recompile before commit, so the generated .lock.yml no longer matches. This is a consistent, reproducible regression pattern (not flaky) tied to a specific lock file.

Pattern 2 — Go module proxy 403 (1 of 3 failed runs: run #52851)
Job health-smoke-copilot fails during make build:

##[error].../go-sdk@v1.7.0/.../json.go:13:2: github.com/segmentio/encoding@v0.5.4: reading (proxy.golang.org/redacted) 403 Forbidden

This looks like a transient/external Go module proxy issue rather than a code regression — flaky infrastructure dependency, not a code defect.

Open bug-labeled issues (no issues currently carry both bug + regression labels; showing top bug-labeled open issues for context):

• eslint-factory: require-error-code-for-github-api-throw does not recognize octokit.request() calls #58933 — eslint-factory: require-error-code-for-github-api-throw does not recognize octokit.request() calls
• pushSignedCommits fallback pushes stale branch ref after rebasing detached HEAD #58910 — pushSignedCommits fallback pushes stale branch ref after rebasing detached HEAD
• [WIP] Smoke Project: work in progress #57272 — [WIP] Smoke Project: work in progress
• [Firewall Test] Escape test failed #57063 — [Firewall Test] Escape test failed

None of these open issues appear to directly correspond to the two failure patterns above (lock-file drift, Go proxy 403), so no existing regression issue tracks either.