JSON Tests

Test	File
Valid JSON fixtures	decoder_test.go
Invalid integer JSON	decoder_test.go
Malformed JSON / multiple documents	decoder_test.go
JSON syntax line/column	contract_error_http_test.go
Multiple contract errors + truncation	contract_error_http_test.go
Boolean/null instead of string	contract_error_http_test.go
Handler JSON success + test endpoint	handler_http_test.go
Archive malformed JSON	idempotency_archive_http_test.go

Paired fixtures live under internal/inbound/workorder/testdata/ (valid-single-project.json, invalid-stage-type.json, …).

JSON↔XML equivalence after normalize and idempotency semantic replay are cross-format tests, not JSON-only.