feat: implement account settings and API tokens management

- Added SettingsComponent for user profile management, including display name and password change functionality.
- Introduced TokensComponent for managing API tokens, including creation and revocation.
- Created LayoutComponent for consistent application layout with navigation and user information.
- Established main application structure in index.html and main.ts.
- Integrated Tailwind CSS for styling and responsive design.
- Configured TypeScript settings for strict type checking and module resolution.

ts/api/index.ts

@@ -0,0 +1,6 @@
+/**
+ * API exports
+ */
+
+export { ApiRouter, type IApiContext, type IApiResponse } from './router.ts';
+export * from './handlers/index.ts';