fix(chat): restore direct voice unlock subscription

src/app/chat/chat-screen.tsx

@@ -23,7 +23,6 @@ import {
   ChatQuotaExhaustedBanner,
   ExternalBrowserDialog,
   PwaInstallOverlay,
-  VoiceUnlockOptionsDialog,
 } from "./components";
 import styles from "./components/chat-screen.module.css";
 
@@ -41,7 +40,6 @@ export function ChatScreen() {
   const router = useRouter();
   const [showExternalBrowserDialog, setShowExternalBrowserDialog] =
     useState(false);
-  const [showVoiceUnlockDialog, setShowVoiceUnlockDialog] = useState(false);
 
   // isGuest 派生（chat-screen 是唯一知道这个值的地方 —— chat 机器无 isGuest 字段）
   const isGuest = deriveIsGuest(authState.loginStatus);
@@ -62,20 +60,6 @@ export function ChatScreen() {
     returnTo: "chat",
   });
 
-  function navigateToSubscription(type: "vip" | "voice"): void {
-    const subscriptionUrl = ROUTE_BUILDERS.subscription(type, {
-      returnTo: "chat",
-    });
-
-    setShowVoiceUnlockDialog(false);
-    if (isGuest) {
-      router.push(ROUTE_BUILDERS.authWithRedirect(subscriptionUrl));
-      return;
-    }
-
-    router.push(subscriptionUrl);
-  }
-
   useEffect(() => {
     if (!authState.hasInitialized || authState.isLoading) return;
     const isDev = AppEnvUtil.isDevelopment();
@@ -170,7 +154,11 @@ export function ChatScreen() {
   }
 
   function handleUnlockVoiceMessage(): void {
-    setShowVoiceUnlockDialog(true);
+    if (isGuest) {
+      router.push(ROUTE_BUILDERS.authWithRedirect(chatPaywallSubscriptionUrl));
+      return;
+    }
+    router.push(chatPaywallSubscriptionUrl);
   }
 
   return (
@@ -230,12 +218,6 @@ export function ChatScreen() {
           onClose={() => setShowExternalBrowserDialog(false)}
           onConfirm={() => void handleOpenExternalBrowser()}
         />
-        <VoiceUnlockOptionsDialog
-          open={showVoiceUnlockDialog}
-          onClose={() => setShowVoiceUnlockDialog(false)}
-          onBuyVoicePackage={() => navigateToSubscription("voice")}
-          onActivateVip={() => navigateToSubscription("vip")}
-        />
       </div>
     </MobileShell>
   );