feat: complete MVP foundation auth and dashboard

proxy.ts

@@ -0,0 +1,21 @@
+import { NextResponse, type NextRequest } from "next/server";
+
+import { MOCK_SESSION_COOKIE_NAME } from "@/lib/mock-auth";
+import { shouldRedirectDashboardRequest } from "@/lib/proxy-auth";
+
+export function proxy(request: NextRequest) {
+  if (
+    shouldRedirectDashboardRequest(
+      request.nextUrl.pathname,
+      request.cookies.get(MOCK_SESSION_COOKIE_NAME)?.value,
+    )
+  ) {
+    return NextResponse.redirect(new URL("/", request.url));
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: "/dashboard/:path*",
+};