Add app icon (shield + circuit + arrow) and embed in exe

- Generate app icon via AI image gen (shield with circuit board + arrow)
- Convert to .ico with 256/128/64/48/32/16px sizes via ImageMagick
- Create winres config with IMTAQIN company info, version 1.0.0
- Embed icon + manifest + version info into exe via go-winres
- Add 48px icon-app.png for UI title bar
- exe now shows custom icon in taskbar, explorer, and title bar

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/index.html

@@ -11,7 +11,7 @@
         <!-- Title Bar -->
         <div class="titlebar">
             <div class="titlebar-left">
-                <img src="icon-shield.png" class="app-logo-img" alt="">
+                <img src="icon-app.png" class="app-logo-img" alt="">
                 <div class="app-title">
                     <span class="app-name">DRIVER BOOSTER</span>
                     <span class="app-edition">PRO</span>