$ uv run tools/flow.py test cases/lab01-challenge2.json -v
✔ before: POST http://localhost:8800/ops-reset · HTTP 200 · 0.0s · {"seeded_at": "2026-11-04T08:30:00", "note": "79일차 운영 아침 상태 (연습 데이터, seed 79)", "counts": {"alerts": 6, "dlq": 3, "quali
    → request  POST http://localhost:8800/ops-reset
      {}
    ← response HTTP 200
      {
        "seeded_at": "2026-11-04T08:30:00",
        "note": "79일차 운영 아침 상태 (연습 데이터, seed 79)",
        "counts": {
          "alerts": 6,
          "dlq": 3,
          "quality_log": 4,
          "quarantine": 1,
          "usage": 192
        }
      }
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "error", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "usage": "error"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "error",
        "dlq": "ok",
        "slow_seconds": 8
      }
POST http://localhost:5678/webhook/my-ops-facts · 3 case(s) × 1
✘ 비용 출처가 멈춰도 200 · 모르는 것은 모른다고 · 0.1s · status 500 (expected 200); sources_down = null (expected ["cost"]); health.cost = null (expected unknown); unknown = null (expected ["cost"])
    → request  POST /webhook/my-ops-facts
      {}
    ← response HTTP 500
      {
        "message": "Error in workflow"
      }
✘ 다른 영역은 그대로 · 0.1s · status 500 (expected 200); dlq.size = null (expected 3); health.dlq = null (expected red); red = null (expected ["runs", "dlq", "release"]); overall = null (expected red)
    → request  POST /webhook/my-ops-facts
      {}
    ← response HTTP 500
      {
        "message": "Error in workflow"
      }
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "usage": "ok"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok",
        "slow_seconds": 8
      }
✘ 출처가 돌아오면 다시 노랑 · 0.1s · sources_down = null (expected []); unknown = null (expected [])
    → request  POST /webhook/my-ops-facts
      {}
    ← response HTTP 200
      {
        "period": {
          "from": "2026-10-26",
          "to": "2026-10-30"
        },
        "runs": {
          "total": 357,
          "errors": 21,
          "error_rate": 0.0588,
          "p95_ms": 2598,
          "unanswered_rate": 0.0476,
          "top_failure": {
            "node": "Search FAQ",
            "message": "timeout of 1000ms exceeded",
            "count": 16
          }
        },
        "alerts": {
          "count": 6,
          "high": 3,
          "by_reason": {
            "timeout": 1,
            "rate_limit": 1,
            "batch_rejected": 1,
            "low_quality": 2,
            "api_error": 1
          }
        },
        "dlq": {
          "size": 3,
          "parked": 2,
          "waiting": 1
        },
        "quality": {
          "batches": 4,
          "avg_score": 0.6583,
          "last_score": 1,
          "rejected_batches": 1,
          "quarantine": 1
        },
        "cost": {
          "requests": 156,
          "calls": 192,
          "cost_usd": 0.073604,
          "daily_usd": 0.08,
          "used_ratio": 0.9201,
          "top_user": {
            "user": "test-bot",
            "cost_usd": 0.027228,
            "share": 0.3699
          }
        },
        "release": {
          "active": "1.1.0",
          "canary_release": "1.2.0",
          "canary_percent": 20,
          "active_repeat_rate": 0.0773,
          "canary_repeat_rate": 0.625
        },
        "health": {
          "runs": "red",
          "alerts": "yellow",
          "dlq": "red",
          "quality": "yellow",
          "cost": "yellow",
          "release": "red"
        },
        "red": [
          "runs",
          "dlq",
          "release"
        ],
        "yellow": [
          "alerts",
          "quality",
          "cost"
        ],
        "overall": "red"
      }
Passed 0/3
report: runs/lab01-challenge2-20261101-185143.json
✔ after: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "usage": "ok"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok",
        "slow_seconds": 8
      }