fix(windows): Configure MSI as 64-bit installer

Add Platform="x64" to the WiX Package element and use ProgramFiles64Folder
instead of ProgramFiles6432Folder to ensure the MSI:
- Is recognized as a 64-bit installer by tools like winget/komac
- Installs to "Program Files" instead of "Program Files (x86)"

This fixes winget manifest detection issues where the installer was
incorrectly identified as x86 architecture.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: cfsmp3

windows/installer.wxs

@@ -1,5 +1,5 @@
 <Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
-	<Package Name="CCExtractor" Language="1033" Version="$(AppVersion)" Manufacturer="CCExtractor development" UpgradeCode="e70dbe37-bb04-4c39-bedc-966a6b073bcf" InstallerVersion="500" Scope="perMachine">
+	<Package Name="CCExtractor" Language="1033" Version="$(AppVersion)" Manufacturer="CCExtractor development" UpgradeCode="e70dbe37-bb04-4c39-bedc-966a6b073bcf" InstallerVersion="500" Scope="perMachine" Platform="x64">
 		<MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed."/>
 		<MediaTemplate EmbedCab="yes"/>
 		<Feature Id="CCX" Title="CCExtractor Setup" Level="1">
@@ -39,7 +39,7 @@
                 KeyPath="yes"/>
         </Component>
     </StandardDirectory>
-		<StandardDirectory Id="ProgramFiles6432Folder">
+		<StandardDirectory Id="ProgramFiles64Folder">
 			<Directory Id="INSTALLFOLDER" Name="CCExtractor">
 				<Directory Id="CCX_tessdata" Name="tessdata"/>
 				<Directory Id="CCX_data" Name="data">