JSON Diff final check: distinguish value, type, and order

Before accepting a JSON change, parse both documents and review added or removed keys, changed values, and changed types. The string "1" and number 1 are not equivalent; array order may matter even when object key order does not. Check null versus missing fields and nested structures. If the diff normalizes formatting, know which byte-level changes it hides. A clean semantic diff does not by itself prove the new data satisfies its schema.