990837fb8f
Graduate the proven iddcx_rt.rs dispatch into wdk-iddcx + add the full DDI set the pf-vdisplay driver needs: DeviceInitConfig/Initialize, AdapterInitAsync, MonitorCreate/Arrival/Departure, AdapterSetRenderAdapter (void-returning DDI — its PFN returns ()), SwapChainSetDevice/ReleaseAndAcquireBuffer2/FinishedProcessingFrame. One dispatch macro pins each (_IDDFUNCENUM index, PFN_* type) pair exactly once (the only place table dispatch can be UB). Box-compiles green; IddCxStub link gets validated when pf-vdisplay (cdylib) consumes it in STEP 2. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>