feat: implement QR code scan login system with admin control

- Add scan login service with Redis-based token management
- Add scan login API routes for token generation and validation
- Add QRCodeLogin component for PC-side QR code display
- Add EntryQRCode component for mass login scenarios
- Add ScanLoginView for mobile-side login form
- Add localStorage persistence for user identity
- Add logout functionality to mobile client
- Add auto-redirect for logged-in users
- Add admin console control for QR code display on big screen
- Add socket event forwarding from admin to screen display

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

packages/client-screen/package.json

@@ -11,21 +11,23 @@
   },
   "dependencies": {
     "@gala/shared": "workspace:*",
-    "vue": "^3.5.13",
-    "vue-router": "^4.5.0",
-    "pinia": "^2.3.0",
-    "pixi.js": "^8.6.6",
     "@pixi/particle-emitter": "^5.0.8",
     "gsap": "^3.12.7",
+    "howler": "^2.2.4",
+    "pinia": "^2.3.0",
+    "pixi.js": "^8.6.6",
+    "qrcode": "^1.5.4",
     "socket.io-client": "^4.8.1",
-    "howler": "^2.2.4"
+    "vue": "^3.5.13",
+    "vue-router": "^4.5.0"
   },
   "devDependencies": {
+    "@types/howler": "^2.2.12",
+    "@types/qrcode": "^1.5.6",
     "@vitejs/plugin-vue": "^5.2.1",
-    "vite": "^6.0.7",
     "sass": "^1.83.1",
     "typescript": "^5.7.3",
-    "vue-tsc": "^2.2.0",
-    "@types/howler": "^2.2.12"
+    "vite": "^6.0.7",
+    "vue-tsc": "^2.2.0"
   }
 }