refactor(pages): 将页面配置从route标签迁移到definePage宏

统一使用definePage宏配置页面样式和类型，移除冗余的route标签
更新vscode代码片段模板以匹配新的配置方式
简化pages.json中的页面配置

.vscode/vue3.code-snippets

@@ -19,16 +19,12 @@
     "scope": "vue",
     "prefix": "v3",
     "body": [
-      "<route lang=\"jsonc\" type=\"page\">",
-      "{",
-      "  \"layout\": \"default\",",
-      "  \"style\": {",
-      "    \"navigationBarTitleText\": \"$1\"",
-      "  }",
-      "}",
-      "</route>\n",
       "<script lang=\"ts\" setup>",
-      "//$2",
+      "definePage({",
+      "  style: {",
+      "    navigationBarTitleText: '$1',",
+      "  },",
+      "})",
       "</script>\n",
       "<template>",
       "  <view class=\"\">$3</view>",