feat(host/windows): port Apollo's win32u GPU-preference hook (fix hybrid-GPU DDA churn)

Root cause of the ACCESS_LOST (0x887A0026) churn + context-change freeze, found
live: the box is a HYBRID system (RTX 4090 + AMD Radeon iGPU + SudoVDA). DXGI does
hybrid GPU-preference resolution and REPARENTS the SudoVDA output between adapters
(SET_RENDER_ADAPTER is ignored — the IDD lands on the iGPU 0x23664 while we
duplicate on the 4090 0x15768), which constantly invalidates Desktop Duplication.
Apollo runs fine on this same box because it hooks this away.

Port Apollo's hook: replace win32u.dll!NtGdiDdDDIGetCachedHybridQueryValue to always
report D3DKMT_GPU_PREFERENCE_STATE_UNSPECIFIED, so DXGI skips preference resolution
and never reparents the output → DDA stays on one adapter. Installed once before the
first DXGI factory/enumeration (DuplCapturer::open). We fully replace the function
(never call the original) so a 12-byte absolute-jmp prologue patch suffices — no
detour crate / C length-disassembler dependency, just VirtualProtect.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

crates/punktfunk-host/Cargo.toml

@@ -144,6 +144,11 @@ windows = { version = "0.62", features = [
     # Force-composed-flip overlay: a topmost layered window on the Winlogon desktop disqualifies the
     # secure desktop's fullscreen independent-flip so Desktop Duplication can capture it.
     "Win32_System_LibraryLoader",
+    # VirtualProtect — for the inline patch of the win32u GPU-preference shim (Apollo's MinHook port:
+    # the hybrid-GPU output-reparenting hook that keeps Desktop Duplication stable on a 4090+iGPU box).
+    # See capture/dxgi.rs `install_gpu_pref_hook`. No trampoline (we fully replace the fn) → no detour
+    # crate / no C length-disassembler dep; a 12-byte absolute-jmp prologue patch suffices.
+    "Win32_System_Memory",
 ] }
 # Software H.264 encoder (GPU-less path + NVENC fallback). The default `source` feature statically
 # compiles OpenH264 (BSD-2) — no system lib, builds on MSVC; nasm on PATH adds the SIMD fast path.