feat: update Windows installer to include WixUtilExtension and close running application

chore: bump version to 0.6.2

fix: improve update manager logic for caching and fetching releases

build/scripts/build_windows.py

@@ -299,6 +299,7 @@ class WindowsBuilder:
         candle_cmd = [
             str(candle_exe),
             "-ext", "WixUIExtension",
+            "-ext", "WixUtilExtension",
             f"-dDistDir={self.dist_dir}",
             f"-dSourceDir={self.dist_dir}\\WebDropBridge",  # Set SourceDir for Heat-generated files
             f"-dResourcesDir={self.project_root}\\resources",  # Set ResourcesDir for branding assets
@@ -319,6 +320,7 @@ class WindowsBuilder:
         light_cmd = [
             str(light_exe),
             "-ext", "WixUIExtension",
+            "-ext", "WixUtilExtension",
             "-b", str(self.dist_dir / "WebDropBridge"),  # Base path for source files
             "-o", str(msi_output),
             str(wix_obj),
@@ -355,7 +357,8 @@ class WindowsBuilder:
         """
         wix_content = f'''<?xml version="1.0" encoding="UTF-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
-     xmlns:ui="http://schemas.microsoft.com/wix/2010/ui">
+     xmlns:ui="http://schemas.microsoft.com/wix/2010/ui"
+     xmlns:util="http://schemas.microsoft.com/wix/UtilExtension">
     <Product Id="*" Name="WebDrop Bridge" Language="1033" Version="{self.version}"
         Manufacturer="HIM-Tools"
         UpgradeCode="12345678-1234-1234-1234-123456789012">
@@ -378,6 +381,13 @@ class WindowsBuilder:
         <UIRef Id="WixUI_InstallDir" />
         <UIRef Id="WixUI_ErrorProgressText" />
 
+        <!-- Close running application before installation -->
+        <util:CloseApplication
+            Target="WebDropBridge.exe"
+            CloseMessage="yes"
+            RebootPrompt="no"
+            ElevatedCloseMessage="no" />
+
         <Feature Id="ProductFeature" Title="WebDrop Bridge" Level="1">
             <ComponentGroupRef Id="AppFiles" />
             <ComponentRef Id="ProgramMenuShortcut" />