将接口级权限改为业务语言

1. 更新权限配置格式
   - 从 "METHOD:/path" 改为 "module:operation"
   - 例如: "subjects:create", "visits:update", "risk_issues:delete"
   - 更易理解和管理

2. 新增权限操作列表 API
   - GET /api/v1/api-permissions/operations
   - 返回所有权限操作及其描述

3. 更新前端权限管理界面
   - 显示业务语言的权限名称
   - 按模块和操作类型筛选
   - 改进用户体验

4. 修复导入错误
   - 更新 MODULE_TO_ENDPOINTS 为 OPERATION_TO_ENDPOINTS
   - 禁用 API 端点注册表初始化

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

backend/app/api/v1/router.py

@@ -14,6 +14,7 @@ api_router.include_router(sites.router, prefix="/studies/{study_id}/sites", tags
 api_router.include_router(members.router, prefix="/studies/{study_id}/members", tags=["study-members"])
 api_router.include_router(project_permissions.router, prefix="/studies/{study_id}/permissions", tags=["project-permissions"])
 api_router.include_router(api_permissions.router, prefix="/studies/{study_id}", tags=["api-permissions"])
+api_router.include_router(api_permissions.router, tags=["api-permissions"])
 api_router.include_router(attachments.router, prefix="/studies/{study_id}/{entity_type}/{entity_id}/attachments", tags=["attachments"])
 api_router.include_router(attachments.global_router, prefix="/attachments", tags=["attachments"])
 api_router.include_router(audit_logs.router, prefix="/studies/{study_id}/audit-logs", tags=["audit-logs"])