Added self-healing logic to prevent merge-confirmed tasks from re-entering the executor, with test coverage for both merge error recovery and self-healing behavior, plus corresponding architecture and task-management docs. Fusion-Task-Id: FN-4019
Added self-healing logic to prevent merge-confirmed tasks from re-entering the executor, with test coverage for both merge error recovery and self-healing behavior, plus corresponding architecture and task-management docs. Fusion-Task-Id: FN-4019