新增: 依赖图增强(添加依赖弹窗 + dagre 自动布局)

- 添加依赖入口:工具栏"+ 依赖"按钮,弹窗选择源/目标工程 + 依赖类型
- dagre 层次布局替换网格布局(LR 方向,自动排布工程节点)
- 依赖边按类型着色(library/api/mq/shared/custom)
- 小地图导航 + 缩放/适应内容

package.json

@@ -13,11 +13,14 @@
     "build:dev": "tauri build --debug --no-bundle"
   },
   "dependencies": {
+    "@antv/layout": "^2.0.0",
     "@antv/x6": "^3.1.7",
     "@antv/x6-vue-shape": "^3.0.2",
     "@arco-design/web-vue": "^2.58.0",
     "@tauri-apps/api": "^2",
     "@tauri-apps/plugin-dialog": "^2.7.1",
+    "@types/dagre": "^0.7.54",
+    "dagre": "^0.8.5",
     "dompurify": "^3.4.10",
     "highlight.js": "^11.11.1",
     "marked": "^18.0.5",