SIENTIAPDE-2202-escrita-opc-timestamp-qualidade: Enable granular control over OPC UA SourceTimestamp and StatusCode in write commands. This implements write_timestamp and write_quality flags (command > env > default true) for DataValue construction. Upgraded asyncua to 2.0+ to fix StatusCode field naming. Enhanced README.md with new gateway environment variables and detailed write command behavior. Added comprehensive unit and E2E tests for this feature, and removed obsolete planning documents.
vitor-aignosi
ca9f4ce188