{
  "pr_number": 76,
  "task_id": "task-2524",
  "scenario": "Gemini App webhook 미수신 → empty commit으로 webhook re-trigger 시도 → 또 미수신 → 회장 /gemini review 필요",
  "head_sequence": [
    {"sha": "6041f24c0c", "kind": "initial_push", "gemini_evidence": "missing"},
    {"sha": "277c7b14f0", "kind": "empty_commit_webhook_retrigger_attempt", "gemini_evidence": "still_missing"},
    {"sha": "277c7b14f0", "kind": "owner_gemini_review_triggered", "gemini_evidence": "delivered_after_owner_trigger"}
  ],
  "empty_commit_effective": false,
  "owner_trigger_required": true,
  "expected_decision_with_runner": "EMPTY_COMMIT_BLOCKED (block_empty_commit_attempt)",
  "expected_alternative": "PR_OPEN_GEMINI_TRIGGER_MISSED via task-2544 PROpenGeminiTriggerPrevention (preflight ref fetchability + 3min grace)",
  "lesson_pinned": "empty commit은 Gemini webhook re-trigger 효과 없음. PR #76 fixture가 입증. 본 runner는 empty commit 시도 자체를 차단."
}