feat: implement configuration management with CRUD operations

- Added configuration management page with table view and modal forms for adding/editing configurations.
- Integrated Zustand for state management of configurations.
- Implemented user management drawer for organizations with user addition/removal functionality.
- Created user management page with CRUD operations for users.
- Introduced admin store for user-related actions including user creation, deletion, and updates.
- Developed reusable drawer component for UI consistency across user management.
- Enhanced error handling and user feedback with toast notifications.

AGENTS.md

@@ -14,7 +14,7 @@ Light Code - 一个直觉、高效的代码编辑器前端界面
 - **语言**: TypeScript 5
 - **UI库**: React 19.2.3
 - **样式**: Tailwind CSS 4
-- **组件库**: Radix UI (Dialog, Slot, etc.)
+- **组件库**: Radix UI (Dialog, Slot, etc.), Shadcn UI, @tankstack/react-table
 - **状态管理**: Zustand valtio
 - **图标**: Lucide React
 - **工具库**: