feat: add Status and RagChat pages with corresponding components and styles

- Created StatusPage component with system stats, configuration, and indexed documents overview.
- Added RagChatPage component for chat functionality.
- Introduced global CSS styles for light and dark themes, including utility classes and animations.
- Defined TypeScript types for compliance, documents, and themes.
- Configured Tailwind CSS for dynamic theming and custom animations.
- Set up TypeScript configuration for app and node environments.
- Initialized Vite configuration for React project.

src/pages/RagChat/index.ts

@@ -0,0 +1 @@
+export { RagChatPage } from './RagChatPage';