feat: Implement a new dashboard layout with sidebar, introduce project and data source management, and add various UI components.

middleware.ts

@@ -1,6 +1,21 @@
-import { convexAuthNextjsMiddleware } from "@convex-dev/auth/nextjs/server";
+import {
+    convexAuthNextjsMiddleware,
+    createRouteMatcher,
+    isAuthenticatedNextjs,
+    nextjsMiddlewareRedirect,
+} from "@convex-dev/auth/nextjs/server";
 
-export default convexAuthNextjsMiddleware();
+const isSignInPage = createRouteMatcher(["/auth"]);
+const isProtectedPage = createRouteMatcher(["/dashboard(.*)"]);
+
+export default convexAuthNextjsMiddleware(async (request) => {
+    if (isSignInPage(request) && (await isAuthenticatedNextjs())) {
+        return nextjsMiddlewareRedirect(request, "/dashboard");
+    }
+    if (isProtectedPage(request) && !(await isAuthenticatedNextjs())) {
+        return nextjsMiddlewareRedirect(request, "/auth");
+    }
+});
 
 export const config = {
     // The following matcher runs middleware on all routes