respect lms admin base path in routing

src/main.tsx

@@ -4,9 +4,11 @@ import { BrowserRouter } from 'react-router-dom';
 import App from './App';
 import './index.css';
 
+const routerBasename = import.meta.env.BASE_URL.replace(/\/+$/, '') || '/';
+
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
-    <BrowserRouter>
+    <BrowserRouter basename={routerBasename}>
       <App />
     </BrowserRouter>
   </StrictMode>

src/routes.ts

@@ -45,13 +45,22 @@ export const navItems: NavItem[] = [
 // };
 
 const appRoutes: AppRoute[] = [...navItems.map((item) => item.id), 'profile'];
+const publicBasePath = import.meta.env.BASE_URL.replace(/\/+$/, '');
+
+const stripPublicBasePath = (pathname: string): string => {
+  if (!publicBasePath || publicBasePath === '/') return pathname;
+  if (pathname === publicBasePath) return '/';
+  if (pathname.startsWith(`${publicBasePath}/`)) return pathname.slice(publicBasePath.length) || '/';
+  return pathname;
+};
 
 export const isAppRoute = (value: string): value is AppRoute => appRoutes.includes(value as AppRoute);
 
 export const getRoutePath = (route: AppRoute) => routePaths[route];
 
 export const getRouteFromPathname = (pathname: string): AppRoute | null => {
-  const normalizedPath = pathname === '/' ? routePaths[defaultRoute] : pathname.replace(/\/+$/, '');
+  const routePathname = stripPublicBasePath(pathname);
+  const normalizedPath = routePathname === '/' ? routePaths[defaultRoute] : routePathname.replace(/\/+$/, '');
   const entry = Object.entries(routePaths).find(([, path]) => path === normalizedPath);
   return entry ? (entry[0] as AppRoute) : null;
 };