feat: Add admin route and navigation for admin users

src/app/(admin)/admin/page.tsx

@@ -0,0 +1,113 @@
+import { redirect } from "next/navigation";
+
+import { prisma } from "@/lib/prisma";
+import { getCurrentUser } from "@/lib/session";
+import {
+  Card,
+  CardContent,
+  CardDescription,
+  CardHeader,
+  CardTitle,
+} from "@/components/ui/card";
+import {
+  Table,
+  TableBody,
+  TableCell,
+  TableHead,
+  TableHeader,
+  TableRow,
+} from "@/components/ui/table";
+
+async function getStats() {
+  const [userCount, clientCount] = await Promise.all([
+    prisma.user.count(),
+    prisma.client.count(),
+  ]);
+
+  const clients = await prisma.client.findMany({
+    include: {
+      user: {
+        select: {
+          username: true,
+          email: true,
+        },
+      },
+    },
+    orderBy: {
+      createdAt: "desc",
+    },
+    take: 10,
+  });
+
+  return {
+    userCount,
+    clientCount,
+    recentClients: clients,
+  };
+}
+
+export default async function AdminPage() {
+  const user = await getCurrentUser();
+  if (!user || user.role !== "ADMIN") {
+    redirect("/dashboard");
+  }
+
+  const stats = await getStats();
+
+  return (
+    <div className="mx-auto max-w-7xl px-4 py-8 sm:px-6 lg:px-8">
+      <div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
+        <Card>
+          <CardHeader>
+            <CardTitle>用户统计</CardTitle>
+            <CardDescription>系统中的总用户数</CardDescription>
+          </CardHeader>
+          <CardContent>
+            <p className="text-3xl font-bold">{stats.userCount}</p>
+          </CardContent>
+        </Card>
+
+        <Card>
+          <CardHeader>
+            <CardTitle>应用统计</CardTitle>
+            <CardDescription>系统中的总应用数</CardDescription>
+          </CardHeader>
+          <CardContent>
+            <p className="text-3xl font-bold">{stats.clientCount}</p>
+          </CardContent>
+        </Card>
+      </div>
+
+      <Card className="mt-8">
+        <CardHeader>
+          <CardTitle>最近创建的应用</CardTitle>
+          <CardDescription>显示最近创建的 10 个应用</CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Table>
+            <TableHeader>
+              <TableRow>
+                <TableHead>应用名称</TableHead>
+                <TableHead>创建者</TableHead>
+                <TableHead>创建时间</TableHead>
+                <TableHead>Client ID</TableHead>
+              </TableRow>
+            </TableHeader>
+            <TableBody>
+              {stats.recentClients.map((client) => (
+                <TableRow key={client.id}>
+                  <TableCell className="font-medium">{client.name}</TableCell>
+                  <TableCell>{client.user.username}</TableCell>
+                  <TableCell>
+                    {new Date(client.createdAt).toLocaleString()}
+                  </TableCell>
+                  <TableCell className="font-mono">{client.clientId}</TableCell>
+                </TableRow>
+              ))}
+            </TableBody>
+          </Table>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

src/app/(admin)/layout.tsx

@@ -0,0 +1,26 @@
+import { redirect } from "next/navigation";
+
+import { getCurrentUser } from "@/lib/session";
+import { DashboardHeader } from "@/components/layout/dashboard-header";
+
+export default async function AdminLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  const user = await getCurrentUser();
+  if (!user) {
+    redirect("/sign-in");
+  }
+
+  if (user.role !== "ADMIN") {
+    redirect("/dashboard");
+  }
+
+  return (
+    <div className="min-h-screen">
+      <DashboardHeader />
+      {children}
+    </div>
+  );
+}

src/app/(auth)/layout.tsx

@@ -10,7 +10,6 @@ export default async function AuthLayout({
   const user = await getCurrentUser();
 
   if (user) {
-    if (user.role === "ADMIN") redirect("/admin");
     redirect("/dashboard");
   }
 

src/app/(dashboard)/layout.tsx

@@ -9,7 +9,9 @@ export default async function DashboardLayout({
   children: React.ReactNode;
 }) {
   const user = await getCurrentUser();
-  if (!user) redirect("/sign-in");
+  if (!user) {
+    redirect("/sign-in");
+  }
 
   return (
     <div className="min-h-screen">

src/components/auth/user-authorize.tsx

@@ -1,7 +1,6 @@
 "use client";
 
 import { useCallback, useEffect, useState } from "react";
-import { useRouter } from "next/navigation";
 import { signIn } from "@/actions/user-authorize";
 import { useSession } from "next-auth/react";
 
@@ -17,7 +16,6 @@ export function UserAuthorize({
   const [isLoading, setIsLoading] = useState<boolean>(false);
   const [error, setError] = useState<Error | unknown>(null);
   const { update } = useSession();
-  const router = useRouter();
 
   const signInCallback = useCallback(async () => {
     if (isLoading) {
@@ -25,22 +23,18 @@ export function UserAuthorize({
     }
     setIsLoading(true);
     try {
-      await signIn({ ...data, redirectTo: "/dashboard" });
+      const result = await signIn({ ...data, redirectTo: "/dashboard" });
       // 更新 session
       await update();
-      router.push("/dashboard");
       setIsLoading(false);
     } catch (error) {
       setError(error);
       setIsLoading(false);
     }
-  }, [data, isLoading, update, router]);
+  }, [data, isLoading, update]);
 
   useEffect(() => {
-    const timer = setTimeout(signInCallback, 5);
-    return () => {
-      clearTimeout(timer);
-    };
+    signInCallback();
   }, [signInCallback]);
 
   return (
@@ -48,7 +42,7 @@ export function UserAuthorize({
       {error ? (
         <p className="text-center">登录异常，授权失败！</p>
       ) : (
-        <p className="text-center">账号信息验证中，准备跳转中，请稍等...</p>
+        <p className="text-center">账号信息验证中，请稍等...</p>
       )}
     </>
   );

src/components/layout/dashboard-header.tsx

@@ -11,6 +11,7 @@ export function DashboardHeader() {
     if (pathname === "/dashboard") return "控制台";
     if (pathname === "/dashboard/clients") return "应用管理";
     if (pathname.includes("/dashboard/clients/")) return "应用编辑";
+    if (pathname === "/admin") return "管理后台";
     return "";
   };
 

src/components/layout/nav-bar.tsx

@@ -89,6 +89,14 @@ export function NavBar() {
                   <DropdownMenuItem asChild>
                     <Link href="/dashboard/clients">应用管理</Link>
                   </DropdownMenuItem>
+                  {user.role === "ADMIN" && (
+                    <>
+                      <DropdownMenuSeparator />
+                      <DropdownMenuItem asChild>
+                        <Link href="/admin">管理后台</Link>
+                      </DropdownMenuItem>
+                    </>
+                  )}
                   <DropdownMenuSeparator />
                   <DropdownMenuItem
                     className="text-red-600 dark:text-red-400"