{
  "snapshot_id": "test_golden_001",
  "created_at_utc": "2026-03-12T00:00:00+00:00",
  "code_commit_hash": "abc1234",
  "feature_version": "market_v1",
  "parser_version": "rule-1.0.0",
  "label_version": "label-1.0.0",
  "split_policy": "temporal_70_15_15",
  "row_counts": {
    "train": 2,
    "valid": 0,
    "test": 0
  },
  "total_rows": 2,
  "output_dir": "tests/fixtures/backtest_snapshot"
}