修改认证中心对接方式

components/auth-login-panel.tsx

@@ -27,10 +27,6 @@ export function AuthLoginPanel({
   const feedbackRef = useRef<HTMLDivElement | null>(null);
   const hasMissingConfig = !configured && Boolean(missing?.length);
 
-  useEffect(() => {
-    refreshCaptcha();
-  }, []);
-
   useEffect(() => {
     return runScopedMotion(screenRef, (scope) => revealChildren(scope));
   }, []);
@@ -55,14 +51,19 @@ export function AuthLoginPanel({
     setSubmitting(true);
     setError(null);
     try {
+      const payload: Record<string, string> = { username, password, next };
+      if (code.trim() && randomStr) {
+        payload.code = code.trim();
+        payload.randomStr = randomStr;
+      }
       const response = await fetch("/api/auth/password", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ username, password, code, randomStr, next })
+        body: JSON.stringify(payload)
       });
-      const payload = await response.json();
-      if (!response.ok) throw new Error(payload.error || "登录失败");
-      window.location.assign(payload.redirectTo || next || "/create");
+      const result = await response.json().catch(() => ({})) as { error?: string; redirectTo?: string };
+      if (!response.ok) throw new Error(result.error || "登录失败");
+      window.location.assign(result.redirectTo || next || "/create");
     } catch (err) {
       setError(err instanceof Error ? err.message : String(err));
       refreshCaptcha();
@@ -123,15 +124,22 @@ export function AuthLoginPanel({
                 value={code}
                 onChange={(event) => setCode(event.target.value)}
                 disabled={!configured || submitting}
-                placeholder="请输入验证码"
+                placeholder="需要时填写"
               />
-              <button className="auth-captcha-button" type="button" onClick={refreshCaptcha} disabled={!configured || submitting} aria-label="刷新验证码" title="刷新验证码">
+              <button
+                className="auth-captcha-button"
+                type="button"
+                onClick={refreshCaptcha}
+                disabled={!configured || submitting}
+                aria-label="刷新验证码"
+                title="刷新验证码"
+              >
                 {captchaSrc ? <img src={captchaSrc} alt="验证码" /> : <RefreshCw size={18} />}
               </button>
             </div>
           </label>
 
-          <button className="button primary auth-submit" type="submit" disabled={!configured || submitting || !username.trim() || !password || !code.trim()} data-animate>
+          <button className="button primary auth-submit" type="submit" disabled={!configured || submitting || !username.trim() || !password} data-animate>
             {submitting ? <Loader2 className="spin" size={18} /> : <LogIn size={18} />}
             登录
           </button>