nx_iot_local_tuya_v33_test.nx

nx_iot_local_tuya_v33_test.nx -- end-to-end smoke for the Tuya v3.3 frame envelope primitive. Coverage: - CRC32 KAT against the canonical "123456789" -> 0xCBF43926 - CRC32 zero-length corner case - sealed-enum decode verdict validity gate - frame encode + decode roundtrip with a varied payload - cmd / seq survival across roundtrip - encode: out_cap too small -> -1 - decode: truncated buffer -> BUF_TOO_SMALL - decode: corrupted header sentinel -> BAD_HEADER - decode: corrupted tail sentinel -> BAD_TAIL - decode: tampered CRC -> BAD_CRC - decode: tampered payload (CRC mismatches) -> BAD_CRC - decode: length field below minimum -> BAD_LEN expect_exit: 0 license_tier: ORIGINAL