fix: installer

Author: RuntimeRascal

Installer/GhostDraw.Installer.wixproj

@@ -8,6 +8,8 @@
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <PublishDir>..\Src\GhostDraw\bin\Release\net8.0-windows\win-x64\publish\</PublishDir>
     <DefineConstants>PublishDir=$(PublishDir);ProductVersion=$(Version)</DefineConstants>
+    <!-- Suppress ICE64: We intentionally preserve user data folder on uninstall -->
+    <SuppressIces>ICE64</SuppressIces>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="Product.wxs" />

Installer/Product.wxs

@@ -111,8 +111,8 @@
     <ComponentGroup Id="SettingsComponents" Directory="GhostDrawSettingsFolder">
       <Component Id="SettingsFolderRef" Guid="A6B7C8D9-0E1F-2A3B-4C5D-6E7F8A9B0C1D">
         <CreateFolder />
-        <!-- Note: We intentionally do NOT remove the settings folder on uninstall -->
-        <!-- This preserves user settings for reinstallation or manual backup -->
+        <!-- RemoveFolder only removes empty folders, so user files are preserved -->
+        <RemoveFolder Id="RemoveSettingsFolder" On="uninstall" />
         <RegistryValue Root="HKCU"
           Key="Software\$(var.Manufacturer)\$(var.ProductName)"
           Name="SettingsPath"