Return NpGameIntentErrorInvalidArgument (0x80550004) instead of throwing APS5_INVALID_ARG_EX when invalid arguments are passed to sceNpGameIntentGetPropertyValueString or sceNpGameIntentReceiveIntent. Add regression test coverage in GuestNpGameIntent.
The silent-stub refactor dropped the unverified size check, so the
test now asserts the documented contract instead of expecting a
throw.
Generated with [Devin](https://devin.ai)
Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>