{
  "status": "review_only",
  "rows": 6,
  "columns": ["order_id", "customer", "order_date", "amount_gbp"],
  "exact_duplicate_rows_after_trim": 0,
  "blank_cells_by_column": {"order_id": 0, "customer": 0, "order_date": 0, "amount_gbp": 0},
  "formula_like_cells_by_column": {"order_id": 0, "customer": 0, "order_date": 0, "amount_gbp": 1},
  "notes": [
    "No source records changed.",
    "Formula-like values are flagged, not evaluated.",
    "Duplicate detection trims whitespace but does not infer identity."
  ]
}