[mberman84]

What changed

• coalesces near-ready deploy requests while preserving independent throughput
• freezes authoritative source paths before overlap decisions and creates cumulative integration PRs before any partial drain
• owns token-created integration CI end to end and preserves exact check evidence through merge
• follows exact-main CI retries, reconciles exact external merges, and supersedes older main revisions safely
• hardens first-use registry and label races, adds configuration/doctor coverage, and documents the new controls
• serializes existing all-mode integration work ahead of newly queued source batches

Why

Bursty delivery exposed races between CI completion, batch freezing, overlap discovery, integration PR creation, coordinator replacement, and newer-main arrival. Those races could split overlapping work, lose release ownership, or leave durable thread state stale.

Impact

DeployBot can now coordinate 5-10 simultaneous requests with bounded parallel promotion, deterministic overlap batching, cumulative validation, exact-main fail-closed deployment, retry ownership, and recovery after external merges.

Validation

• 125 unit tests passed (2 skipped)
• ruff check .
• ruff format --check .
• live delivery-lab overlap, cumulative integration, external-merge, exact-main retry, and newer-main supersession trials
• final autoreview: no accepted/actionable findings

[mberman84]

Recorded DeployBot deploy intent.

[mberman84]

Recorded merge queue state queued on 0d1140ca8e1ebc387d94cede032d7e0728f21b2d.

[mberman84]

Frozen merge batch 20260621T045853Z-db98a11c3d00b8e9.