fix: handle FDv2 intentCode none as listening, reject unknown codes #2991

Job	Run time
contract-tests	3m 4s
contract-tests-curl	3m 37s
build-test-client-mac	3m 15s
build-test-curl	6m 16s
build-test-client-mac-curl	3m 50s
build-test-client-windows	14m 3s
build-test-client-windows-curl	15m 21s
build-test	6m 46s
	56m 12s

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