fix: support Upstash Redis on Cloudflare Pages

components/PasswordGate.tsx

@@ -207,6 +207,12 @@ export function PasswordGate({
       });
       const data = await response.json();
 
+      if (response.status === 503) {
+        setError('认证存储暂时不可用，请检查 Upstash Redis 配置');
+        setIsValidating(false);
+        return;
+      }
+
       if (data.valid && data.session) {
         setSession(toAuthSession(data.session), data.persistSession ?? persistSession);
         setIsLocked(false);