重构了translator，写了点数据库、后端api路由

src/lib/SessionWrapper.tsx

@@ -0,0 +1,11 @@
+"use client";
+
+import { SessionProvider } from "next-auth/react";
+
+export default function SessionWrapper({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return <SessionProvider>{children}</SessionProvider>;
+}