[factory] Canary — end-to-end proof after PR90+91 stack 2026-09-01T11:00:45Z

[kjgbot]

Canary probe

Filed manually by factory-lead-r5 to prove end-to-end dispatch after today's shipped stack:

• [factory] error {} — raw Errors serialize to {} (message/stack are non-enumerable); describeError() already exists one line away #83 (dispatch-reset admin route)
• relay backend: dispatch exits after placement, so nothing publishes the PR or parks the issue — remote work never reaches human-review #85 (wedge watchdog)
• feat: add exhaustive Factory feature verification #86 (forceProvision fallback)
• Babysitter goes blind after spawn: route its own PR's review/CI events into its session instead of dropping them #87 (narrow repos to factory)
• Fix GitHub numeric issue resolution #88 (429 rate-limit backoff)
• Repo-qualify collision-prone agent names #89 (slow sweep + batch=1)
• Serialize logger error metadata safely #90 (fresh-provision timeout 45s→180s)
• Forward repo metadata to relay fleet placement #91 (verify-p0-canary workflow — awaiting CROSS_REPO_PAT secret)
• @agent-relay/factory v0.1.83 (upstream dispatch-capacity fix)

Impl agent trivial task: append <!-- canary 2026-09-01T11:00:45Z --> to end of README.md, commit, push, PR.