feat: 添加 QR 码生成和下载功能，优化用户界面布局

package.json

@@ -37,6 +37,7 @@
     "@tailwindcss/vite": "^4.1.18",
     "@vee-validate/yup": "^4.15.1",
     "@vueuse/core": "^14.1.0",
+    "@vueuse/integrations": "^14.1.0",
     "@vueuse/router": "^14.1.0",
     "better-auth": "^1.4.6",
     "ethers": "^6.16.0",
@@ -44,6 +45,7 @@
     "lightweight-charts": "^5.1.0",
     "lodash-es": "^4.17.21",
     "pinia": "^3.0.4",
+    "qrcode": "^1.5.4",
     "tailwindcss": "^4.1.18",
     "vee-validate": "^4.15.1",
     "vue": "^3.5.25",
@@ -66,6 +68,7 @@
     "@ionic/cli": "^7.2.1",
     "@types/lodash-es": "^4.17.12",
     "@types/node": "^24.10.2",
+    "@types/qrcode": "^1.5.6",
     "@vitejs/plugin-legacy": "^7.2.1",
     "@vitejs/plugin-vue": "^6.0.2",
     "@vitejs/plugin-vue-jsx": "^5.1.2",