chore: init monorepo snapshot

wolai-frontend/src/app/page.tsx

@@ -0,0 +1,41 @@
+import { redirect } from "next/navigation";
+import { createSupabaseServerClient } from "@/lib/supabase/server";
+
+export default async function Home() {
+  const supabase = await createSupabaseServerClient();
+  const {
+    data: { session },
+  } = await supabase.auth.getSession();
+
+  if (!session) {
+    redirect("/login");
+  }
+
+  const { data: firstDoc } = await supabase
+    .from("documents")
+    .select("id")
+    .eq("user_id", session.user.id)
+    .order("created_at", { ascending: true })
+    .limit(1)
+    .maybeSingle();
+
+  if (firstDoc?.id) {
+    redirect(`/documents/${firstDoc.id}`);
+  }
+
+  const { data: createdDoc, error } = await supabase
+    .from("documents")
+    .insert({
+      user_id: session.user.id,
+      title: "新页面",
+      content: {},
+    })
+    .select("id")
+    .single();
+
+  if (error || !createdDoc) {
+    redirect("/login");
+  }
+
+  redirect(`/documents/${createdDoc.id}`);
+}