XML Tests

Test	File
Valid XML fixtures	decoder_test.go
Invalid integer XML	decoder_test.go
DOCTYPE / DTD rejected	decoder_test.go, handler_http_test.go
Nested invalid integer path	contract_error_http_test.go
Handler XML success / test / malformed	handler_http_test.go
Format-endpoint XML contract errors	format_validation_http_test.go
Validator XML fixtures	validator_test.go
Outbound XML Accept	performance + machine-events handler tests

Canonical schema: api/schemas/inbound-work-orders.xsd.