{
  "vector": "05-schema-mismatch",
  "expected_verdict": "FAILED",
  "human_summary": "Schema mismatch: schema_version overwritten to a non-published value.",
  "why_this_fails": "schema_version \"h33-pq-verified/wrong-schema/v9.9\" is unknown. Verifier rejects unknown schemas (does not \"best guess\"); structural binding is to the named schema only."
}