Initial commit: Complete open-source Decal rebuild
All 5 phases of the open-source Decal rebuild:
Phase 1: 14 decompiled .NET projects (Interop.*, Adapter, FileService, DecalUtil)
Phase 2: 10 native DLLs rewritten as C# COM servers with matching GUIDs
- DecalDat, DHS, SpellFilter, DecalInput, DecalNet, DecalFilters
- Decal.Core, DecalControls, DecalRender, D3DService
Phase 3: C++ shims for Inject.DLL (D3D9 hooking) and LauncherHook.DLL
Phase 4: DenAgent WinForms tray application
Phase 5: WiX installer and build script
25 C# projects building with 0 errors.
Native C++ projects require VS 2022 + Windows SDK (x86).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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