{
  "data_class": "synthetic_demo_only",
  "customer_case": false,
  "official_export": false,
  "platform": "google",
  "account_id": "SYNTHETIC-NOT-A-PROVIDER-ACCOUNT",
  "date_start": "2026-01-01",
  "date_end": "2026-01-03",
  "context": {
    "account_timezone": "Asia/Hong_Kong",
    "account_currency": "USD",
    "attribution_window": "synthetic_example_only",
    "filters": {"status": "all", "synthetic": true},
    "platform_source": "synthetic_demo",
    "query_executed_at": "2026-01-04T12:00:00Z",
    "adapter_version": "synthetic-example-20261017"
  },
  "daily_rows": [
    {"date": "2026-01-01", "reference_spend": 40, "observed_spend": 40, "reference_clicks": 20, "observed_clicks": 20},
    {"date": "2026-01-02", "reference_spend": 60, "observed_spend": 60, "reference_clicks": 30, "observed_clicks": 30},
    {"date": "2026-01-03", "reference_spend": 50, "observed_spend": null, "reference_clicks": 25, "observed_clicks": null}
  ],
  "period_expected": {"spend": 150, "clicks": 75},
  "period_actual": {"spend": null, "clicks": null},
  "observed_subtotal": {"spend": 100, "clicks": 50},
  "covered_dates": ["2026-01-01", "2026-01-02"],
  "missing_dates": ["2026-01-03"]
}