fusion

Files

gsxdsm 9218613552 FN-6949: fix auto-merge lifecycle finalization

Make auto-merge completion idempotent when landed tasks are left outside done.

- Add shared auto-merge finalization logic that refreshes task rows, clears stale queue/blocker state, and recovery-rehomes proven landed tasks to done.
- Route direct AI merge, merge-confirmed fast paths, and self-healing recovery through the shared finalizer with run-audit events for reconciled or blocked column mismatches.
- Extend lifecycle and recovery tests to cover todo/in-review mismatches, finalization failures, stale blockers, and cleanup idempotency.
- Add the required patch changeset for the published Fusion package.

Files changed:
 .changeset/fn-6949-auto-merge-lifecycle.md         |   5 +
 .../src/__tests__/merge-error-recovery.test.ts     |  50 ++++-
 packages/engine/src/__tests__/merger-ai.test.ts    |   8 +-
 .../src/__tests__/merger-merge-lifecycle.test.ts   | 155 +++++++++++++++
 .../ai-merge-cleanup-enoent-idempotent.test.ts     |   2 +-
 packages/engine/src/__tests__/self-healing.test.ts | 194 +++++++++++--------
 packages/engine/src/auto-merge-finalization.ts     | 208 +++++++++++++++++++++
 packages/engine/src/merger-ai.ts                   |  47 +++--
 packages/engine/src/project-engine.ts              |  87 +++++----
 packages/engine/src/run-audit.ts                   |   4 +
 packages/engine/src/self-healing.ts                |  92 ++++-----
 11 files changed, 663 insertions(+), 189 deletions(-)

Fusion-Task-Id: FN-6949

Fusion-Task-Lineage: db784ec0-68e9-4a37-9728-daa6f133e294

2026-06-22 23:18:28 -07:00