Add release build configuration and MSI installer

- Configure self-contained, single-file release build
- Add version and company metadata to project
- Fix Assembly.Location for single-file compatibility (use AppContext.BaseDirectory)
- Add Resources folder copy to publish output
- Create WiX installer project with Product.wxs
- Configure auto-start via HKCU Run registry key
- Add build-release.ps1 PowerShell script for automated builds
- MSI installer installs to %LOCALAPPDATA%\DangerousThings\NFC Actions
- Creates Start Menu shortcut
- Automatically starts application on user login

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

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

Installer/Installer.wixproj

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" InitialTargets="EnsureWixToolsetInstalled" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <ProductVersion>3.11</ProductVersion>
+    <ProjectGuid>f5e6a7b8-c9d0-4e1f-2a3b-4c5d6e7f8a9b</ProjectGuid>
+    <SchemaVersion>2.0</SchemaVersion>
+    <OutputName>NfcActions-Setup</OutputName>
+    <OutputType>Package</OutputType>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <OutputPath>bin\$(Configuration)\</OutputPath>
+    <IntermediateOutputPath>obj\$(Configuration)\</IntermediateOutputPath>
+    <DefineConstants>Debug</DefineConstants>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <OutputPath>bin\$(Configuration)\</OutputPath>
+    <IntermediateOutputPath>obj\$(Configuration)\</IntermediateOutputPath>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="Product.wxs" />
+  </ItemGroup>
+  <ItemGroup>
+    <WixExtension Include="WixUIExtension">
+      <HintPath>$(WixExtDir)\WixUIExtension.dll</HintPath>
+      <Name>WixUIExtension</Name>
+    </WixExtension>
+  </ItemGroup>
+  <Import Project="$(WixTargetsPath)" Condition=" '$(WixTargetsPath)' != '' " />
+  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\WiX\v3.x\Wix.targets" Condition=" '$(WixTargetsPath)' == '' AND Exists('$(MSBuildExtensionsPath32)\Microsoft\WiX\v3.x\Wix.targets') " />
+  <Target Name="EnsureWixToolsetInstalled" Condition=" '$(WixTargetsImported)' != 'true' ">
+    <Error Text="The WiX Toolset v3.11 (or newer) build tools must be installed to build this project. To download the WiX Toolset, see http://wixtoolset.org/releases/" />
+  </Target>
+</Project>