feat: Enhance OAuth redirect with dynamic callback URL preservation

src/app/(auth)/authorize/page.tsx

@@ -1,6 +1,8 @@
 "use client";
 
+import { useEffect } from "react";
 import Link from "next/link";
+import { useRouter, useSearchParams } from "next/navigation";
 import { MessageCircleCode } from "lucide-react";
 
 import { UserAuthorize } from "@/components/auth/user-authorize";
@@ -10,6 +12,16 @@ type Props = {
 };
 
 export default function AuthPage({ searchParams }: Props) {
+  const router = useRouter();
+  const urlSearchParams = useSearchParams();
+  const callbackUrl = urlSearchParams.get("callbackUrl");
+
+  useEffect(() => {
+    if (callbackUrl) {
+      router.replace(callbackUrl);
+    }
+  }, [callbackUrl, router]);
+
   return (
     <div className="mx-auto flex w-full flex-col justify-center space-y-6 sm:w-[350px]">
       <div className="flex flex-col space-y-2 text-center">

src/app/(oauth)/oauth/authorize/page.tsx

@@ -21,7 +21,17 @@ export default async function OAuthAuthorization({
   // 检查用户是否已登录
   const user = await getCurrentUser();
   if (!user?.id) {
-    redirect("/sign-in");
+    // 构建当前 URL 作为回调地址
+    const currentUrl = new URL(
+      "/oauth/authorize",
+      process.env.NEXT_PUBLIC_HOST_URL,
+    );
+    Object.entries(searchParams).forEach(([key, value]) => {
+      if (value) currentUrl.searchParams.append(key, value.toString());
+    });
+    redirect(
+      `/sign-in?callbackUrl=${encodeURIComponent(currentUrl.toString())}`,
+    );
   }
 
   // 验证必要的参数