{
  "schema": "p2a_regression_fixture.v1",
  "rs": "RS-4",
  "name": "duplicate-call-mock",
  "description": "duplicate idempotent 검증: 동일 task_id 로 2차 호출 시 lock 감지 → silent skip, launch_callback call count == 1",
  "task_id": "task-2707-rs4",
  "kind": "normal",
  "scenario": "duplicate_idempotent",
  "envelope_present": true,
  "owner_is_anu": true,
  "owner_key": "c119085addb0f8b7",
  "executor_key": "executor-self-key-other",
  "chat_id": "6937032012",
  "expected_exit_code": 0,
  "expected_launch_callback_call_count_after_two_invocations": 1,
  "expected_lock": "task-2707-rs4.callback-prereg-lock",
  "expected_marker": "task-2707-rs4.callback-prereg-launch.json",
  "expected_status": "ANU_OWNED_READY",
  "note": "§5.3/§9.2 idempotent: lock 존재 → 2차 호출은 callback 없이 exit 0. duplicate = 0."
}