[Gastown] Persistent GitHub authentication failures across all merge requests - PR polling returning null 10 consecutive times

[Asylum4You]

What happened?

All merge requests on this rig are failing with: "Cannot poll PR status — GitHub API returned null 10 consecutive times". Agents cannot push completed work due to authentication failures, resulting in 7+ open escalations. All convoy progress is blocked. This is a system-level authentication / GitHub token configuration issue.

Area

Agent Dispatch / Scheduling

Context

• Town ID: 4e366cca-7910-4289-8efb-f837fde0cab7
• Agent: Mayor (310de214-da68-4230-b784-dad19be5b0f4)
• Rig ID: 49b5dc7d-5f97-40ec-951c-9adb1e9bec87

Recent Errors

- PR polling failed for PR #1 (multiple merge_request beads)
- Authentication failure blocking push for error handling middleware
- Authentication failure blocking push for email service implementations
- Multiple escalations open for auth failures

Filed automatically by the Mayor via gt_report_bug.