Add main menu overlay, creative inventory injection, mod discovery, logging, and Wine/Proton support

- Replace dbghelp with raw_pdb library for cross-platform PDB symbol resolution
- Add main menu branding overlay via C4JRender::Present hook
- Add creative inventory item injection from mods
- Add file-based logging (LogUtil) alongside console output
- Fix mod discovery with custom AssemblyLoadContext for proper type identity
- Add file dialog for game path selection in launcher
- Add CreativeTab enum and block/item creative tab assignment
- Unify build output to single ModLoader/build directory

LegacyForgeRuntime/src/DotNetHost.cpp

@@ -1,6 +1,5 @@
 #include "DotNetHost.h"
 
-#define WIN32_LEAN_AND_MEAN
 #include <Windows.h>
 #include <nethost.h>
 #include <hostfxr.h>
@@ -162,10 +161,11 @@ void DotNetHost::CallManagedInit()
         fn_Initialize(nullptr, 0);
 }
 
-void DotNetHost::CallDiscoverMods(const char* modsPath)
+int DotNetHost::CallDiscoverMods(const char* modsPath)
 {
     if (fn_DiscoverMods)
-        fn_DiscoverMods(const_cast<char*>(modsPath), static_cast<int>(strlen(modsPath)));
+        return fn_DiscoverMods(const_cast<char*>(modsPath), static_cast<int>(strlen(modsPath)));
+    return 0;
 }
 
 void DotNetHost::CallPreInit()