feat(coverage): 任务新增「资产覆盖图」力导向图 tab

后端(只读，无迁移):
- db BuildCoverageGraph(taskID,expID) 复用 covTargetCTE 拉范围内全部类型资产 +
  tested 标记，补连接节点(缺失根域名/公司，灰)，按字段派生 child→parent 边
- server GET /api/tasks/{id}/coverage-graph

前端:
- 新 tab coverage-graph-tab：xyflow 渲染 + d3-force 静态力导向布局
- 已测=实色高亮、范围内未测=灰、范围外连接节点=灰虚线；点节点看详情抽屉
- 折叠/分页：同父同类型子节点默认展示 20(已测优先)，超出收进折叠节点，
  抽屉「展示更多(+20)」把下一批拉进图；布局仅在可见集合变化时重算
- types/api + d3-force 依赖声明 + 注册 tab

Co-Authored-By: Claude Opus 4.8 <[email protected]>

web/package-lock.json

@@ -21,6 +21,7 @@
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "cmdk": "^1.1.1",
+        "d3-force": "^3.0.0",
         "d3-geo": "^3.1.1",
         "date-fns": "^4.4.0",
         "embla-carousel-react": "^8.6.0",
@@ -52,6 +53,7 @@
       "devDependencies": {
         "@biomejs/biome": "^2.5.1",
         "@tailwindcss/postcss": "^4.3.2",
+        "@types/d3-force": "^3.0.10",
         "@types/d3-geo": "^3.1.0",
         "@types/node": "^22.20.0",
         "@types/react": "^19.2.17",
@@ -4253,7 +4255,6 @@
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       "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.17.tgz",
       "integrity": "sha512-MXfmqaVPEVgkBT/aY0aGCkRWWtByiYQXo3xdQ8r5RzuFrPiRn8Gar2tQdXSUQ2GKV3bkXckek89V8wQBY2Q/Aw==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "csstype": "^3.2.2"
@@ -4263,7 +4264,7 @@
       "version": "19.2.3",
       "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.3.tgz",
       "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "peerDependencies": {
         "@types/react": "^19.2.0"
@@ -4556,7 +4557,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-react-compiler/-/babel-plugin-react-compiler-1.0.0.tgz",
       "integrity": "sha512-Ixm8tFfoKKIPYdCCKYTsqv+Fd4IJ0DQqMyEimo+pxUOMUR9cVPlwTrFt9Avu+3cb6Zp3mAzl+t1MrG2fxxKsxw==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "@babel/types": "^7.26.0"
@@ -10600,7 +10601,7 @@
       "version": "5.9.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
-      "dev": true,
+      "devOptional": true,
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",