feat(ui): Add DevTools button for mobile debugging

Add Eruda DevTools integration accessible from hamburger menu on mobile devices.
- Add DevTools menu item with mobileOnly flag
- Load Eruda dynamically from CDN when clicked
- Filter menu items based on device type

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

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

src/config/menu.js

@@ -21,7 +21,8 @@ export const menuSections = [
       { to: '/reports/telegram', icon: 'pi pi-telegram', label: 'Telegram Bot' },
       { to: '/reports/cache-stats', icon: 'pi pi-chart-bar', label: 'Statistici Cache' },
       { to: '/data-entry/ocr-metrics', icon: 'pi pi-eye', label: 'Statistici OCR' },
-      { to: '/reports/server-logs', icon: 'pi pi-server', label: 'Server Logs' }
+      { to: '/reports/server-logs', icon: 'pi pi-server', label: 'Server Logs' },
+      { action: 'devtools', icon: 'pi pi-cog', label: 'DevTools', mobileOnly: true }
     ]
   }
 ]