proper user/session creation and auth integration into UI

src/app/api/ai-event/route.ts

@@ -1,6 +1,16 @@
 import { NextResponse } from "next/server";
+import { auth } from "@/auth";
 
 export async function POST(request: Request) {
+	const session = await auth();
+	
+	if (!session?.user) {
+		return NextResponse.json(
+			{ error: "Authentication required" },
+			{ status: 401 }
+		);
+	}
+
 	const { prompt } = await request.json();
 
 	const systemPrompt = `