feat: 新增效能分析看板（个人能力图谱 + 设备人员耗时对比）

- 前端：AnalyticsDashboard 页面 + BaseEChart 封装 + analyticsApi，路由与导航
- 后端：/analytics 系列接口（capability/flow/options/device-records）
- 能力图谱单机颗粒度、流转对比按人堆叠识别瓶颈、点击下钻备注、筛选动态联动
- 依赖：引入 echarts，移除 echarts-for-react

backend/app/api/v1/router.py

@@ -12,6 +12,7 @@ from app.api.v1.endpoints.upload import router as upload_router
 from app.api.v1.endpoints.records import router as records_router
 from app.api.v1.endpoints.notifications import router as notifications_router
 from app.api.v1.endpoints.app_version import router as app_version_router
+from app.api.v1.endpoints.analytics import router as analytics_router
 
 api_router = APIRouter()
 
@@ -27,3 +28,4 @@ api_router.include_router(upload_router)
 api_router.include_router(records_router)
 api_router.include_router(notifications_router)
 api_router.include_router(app_version_router)
+api_router.include_router(analytics_router)