- ErrorBoundary 组件：全局错误捕获与优雅降级 - 提取 5 个自定义 hooks：useCountUp, useDarkMode, useDebouncedValue, usePaginatedData, useApiRequest - 从 11 个 API 文件提取 PaginatedResponse 共享类型到 api/types.ts - 统一 API 错误处理（api/errors.ts） - client.ts 迁移到 axios adapter 模式（替代废弃的 CancelToken） - 添加 react-i18next 国际化基础设施 + zh-CN 语言包
- Run cargo fmt on all Rust crates for consistent formatting - Update CLAUDE.md with WASM plugin commands and dev.ps1 instructions - Update wiki: add WASM plugin architecture, rewrite dev environment docs - Minor frontend cleanup (unused imports)
- RoleService: CRUD, assign_permissions, get_role_permissions - PermissionService: list all tenant permissions - Role handlers: 8 endpoints with RBAC permission checks - Frontend Roles page: table, create/edit modal, permission assignment - Frontend Roles API: full CRUD + permission operations - Routes registered in AuthModule protected_routes
