diff --git a/web/package.json b/web/package.json
index 2b20ee8f..f734ac8f 100644
--- a/web/package.json
+++ b/web/package.json
@@ -37,6 +37,7 @@
     "markmap-view": "^0.18.12",
     "pinia": "^3.0.4",
     "pinia-plugin-persistedstate": "^4.7.1",
+    "qrcode": "^1.5.4",
     "shiki": "^4.0.2",
     "sigma": "^3.0.3",
     "vue": "^3.5.34",
diff --git a/web/src/utils/echartsSetup.js b/web/src/utils/echartsSetup.js
new file mode 100644
index 00000000..8d1260b4
--- /dev/null
+++ b/web/src/utils/echartsSetup.js
@@ -0,0 +1,60 @@
+/**
+ * ECharts 按需引入初始化
+ *
+ * 本项目使用 ECharts 5+ 的按需引入模式。任何需要调用 echarts.init 的组件/组合式函数
+ * 应先导入本文件（副作用导入），由本文件统一注册常用图表与组件，避免各业务文件
+ * 重复注册。
+ *
+ * 注意：dashboard 模块的部分旧组件仍使用 `import * as echarts from 'echarts'` 全量导入，
+ * 不受本文件影响；本文件主要服务于使用 `import * as echarts from 'echarts/core'` 的新组件。
+ */
+import { use } from 'echarts/core'
+
+// 图表类型
+import { LineChart, BarChart, PieChart, ScatterChart, RadarChart } from 'echarts/charts'
+
+// 组件
+import {
+  GridComponent,
+  TooltipComponent,
+  LegendComponent,
+  TitleComponent,
+  DatasetComponent,
+  TransformComponent,
+  MarkLineComponent,
+  ToolboxComponent,
+  DataZoomComponent,
+  VisualMapComponent,
+  GraphicComponent,
+  AriaComponent
+} from 'echarts/components'
+
+// 渲染器
+import { CanvasRenderer, SVGRenderer } from 'echarts/renderers'
+
+// 标签布局与动画
+import { LabelLayout, UniversalTransition } from 'echarts/features'
+
+use([
+  LineChart,
+  BarChart,
+  PieChart,
+  ScatterChart,
+  RadarChart,
+  GridComponent,
+  TooltipComponent,
+  LegendComponent,
+  TitleComponent,
+  DatasetComponent,
+  TransformComponent,
+  MarkLineComponent,
+  ToolboxComponent,
+  DataZoomComponent,
+  VisualMapComponent,
+  GraphicComponent,
+  AriaComponent,
+  CanvasRenderer,
+  SVGRenderer,
+  LabelLayout,
+  UniversalTransition
+])