修复权限管理页面错误

1. 修复 ApiPermissions.vue 中的数据绑定错误
   - 从 axios 响应中正确提取 .data 属性
   - 修复 loadPermissionData、loadMonitoringData、save 函数

2. 禁用 FastAPI 响应验证
   - 在 api_permissions.py 中添加 response_model=None
   - 避免 Pydantic 验证错误

3. 注册权限监控 API 路由
   - 在 router.py 中导入并注册 permission_monitoring 模块
   - 修改 permission_monitoring.py 的路由前缀

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

backend/app/api/v1/router.py

@@ -1,6 +1,6 @@
 from fastapi import APIRouter
 
-from app.api.v1 import auth, users, admin_users, studies, sites, members, attachments, audit_logs, dashboard, subjects, visits, aes, finance_dashboard, finance_contracts, fees_contracts, fees_attachments, drug_shipments, material_equipments, project_milestones, startup, knowledge_notes, subject_histories, subject_pds, study_subject_pds, faq_categories, faqs, documents, overview, notifications, monitoring_visit_issues, project_permissions, api_permissions
+from app.api.v1 import auth, users, admin_users, studies, sites, members, attachments, audit_logs, dashboard, subjects, visits, aes, finance_dashboard, finance_contracts, fees_contracts, fees_attachments, drug_shipments, material_equipments, project_milestones, startup, knowledge_notes, subject_histories, subject_pds, study_subject_pds, faq_categories, faqs, documents, overview, notifications, monitoring_visit_issues, project_permissions, api_permissions, permission_monitoring
 
 
 api_router = APIRouter()
@@ -37,3 +37,4 @@ api_router.include_router(study_subject_pds.router, prefix="/studies/{study_id}"
 api_router.include_router(faq_categories.router, prefix="/faqs/categories", tags=["faq-categories"])
 api_router.include_router(faqs.router, prefix="/faqs/items", tags=["faqs"])
 api_router.include_router(documents.router, prefix="", tags=["documents"])
+api_router.include_router(permission_monitoring.router)