{
  "merged": [{"id": "001", "price": "110", "stock": "8"}, {"id": "002", "price": "200", "stock": "20"}],
  "conflict": {"id": "001", "column": "price", "base": "100", "review": "110", "latest": "105", "chosen": "110", "reason": "review owner confirmed 110"},
  "originals_unchanged": true,
  "unresolved": ["delete-vs-edit", "duplicate-key", "empty-cell", "add-vs-add"]
}