Add Inno Setup installer

- Add MonitorControl.iss script
- Installer adds to Start Menu
- Optional: desktop shortcut and startup with Windows
- Update workflow to build installer

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

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

DellMonitorControl/MonitorControl.iss

@@ -0,0 +1,39 @@
+#define MyAppName "Monitor Control"
+#define MyAppVersion "1.0.0"
+#define MyAppPublisher "Dang"
+#define MyAppExeName "DellMonitorControl.exe"
+
+[Setup]
+AppId={{8F3E4A2B-1C5D-4E6F-9A8B-7C2D1E3F4A5B}
+AppName={#MyAppName}
+AppVersion={#MyAppVersion}
+AppPublisher={#MyAppPublisher}
+DefaultDirName={autopf}\{#MyAppName}
+DefaultGroupName={#MyAppName}
+AllowNoIcons=yes
+OutputDir=installer
+OutputBaseFilename=MonitorControl-Setup-{#MyAppVersion}
+Compression=lzma
+SolidCompression=yes
+WizardStyle=modern
+PrivilegesRequired=admin
+UninstallDisplayIcon={app}\{#MyAppExeName}
+
+[Languages]
+Name: "english"; MessagesFile: "compiler:Default.isl"
+
+[Tasks]
+Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
+Name: "startupicon"; Description: "Start with Windows"; GroupDescription: "Startup:"
+
+[Files]
+Source: "bin\Release\net9.0-windows\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createallsubdirs
+
+[Icons]
+Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
+Name: "{group}\Uninstall {#MyAppName}"; Filename: "{uninstallexe}"
+Name: "{autodesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon
+Name: "{userstartup}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: startupicon
+
+[Run]
+Filename: "{app}\{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, '&', '&&')}}"; Flags: nowait postinstall skipifsilent