chore: Update landing page and auth links to Q58 official website

src/app/()/page.tsx

@@ -23,8 +23,8 @@ export default function IndexPage() {
               Q58 Connect
             </h1>
             <p className="mx-auto mt-6 max-w-2xl text-lg text-gray-600 dark:text-gray-300">
-              基于 Discourse SSO 的 OAuth
-              认证服务，让用户使用论坛账号快速登录您的应用
+              基于Q58论坛的OAuth 2.0认证服务,
+              让用户使用Q58论坛账号快速登录您的应用
             </p>
             <div className="mt-10 flex flex-col justify-center space-y-4 sm:flex-row sm:space-x-6 sm:space-y-0">
               <Link href="/dashboard">
@@ -33,15 +33,6 @@ export default function IndexPage() {
                   <ArrowRight className="ml-2 h-4 w-4" />
                 </Button>
               </Link>
-              <Link href="https://github.com/Tuluobo/discourse-connect">
-                <Button
-                  size="lg"
-                  variant="outline"
-                  className="w-full sm:w-auto"
-                >
-                  查看源码
-                </Button>
-              </Link>
             </div>
           </div>
         </div>

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

@@ -32,14 +32,14 @@ export default function AuthPage({ searchParams }: Props) {
       <p className="px-8 text-center text-sm text-muted-foreground">
         By clicking continue, you agree to our{" "}
         <Link
-          href="/terms"
+          href="https://q58.pro/tos"
           className="hover:text-brand underline underline-offset-4"
         >
           Terms of Service
         </Link>{" "}
         and{" "}
         <Link
-          href="/privacy"
+          href="https://q58.pro/privacy"
           className="hover:text-brand underline underline-offset-4"
         >
           Privacy Policy

src/app/(auth)/sign-in/page.tsx

@@ -41,14 +41,14 @@ export default function LoginPage() {
         <p className="px-8 text-center text-sm text-muted-foreground">
           By clicking continue, you agree to our{" "}
           <Link
-            href="/terms"
+            href="https://q58.pro/tos"
             className="hover:text-brand underline underline-offset-4"
           >
             Terms of Service
           </Link>{" "}
           and{" "}
           <Link
-            href="/privacy"
+            href="https://q58.pro/privacy"
             className="hover:text-brand underline underline-offset-4"
           >
             Privacy Policy