fix(chat): return directly to paid image

src/app/subscription/subscription-screen.tsx

@@ -3,6 +3,7 @@ import { useEffect, useMemo, useRef, useState } from "react";
 import { useRouter } from "next/navigation";
 
 import { BackButton } from "@/app/_components";
+import { consumePendingChatImageReturn } from "@/app/chat/chat-image-return-session";
 import { Checkbox, MobileShell } from "@/app/_components/core";
 import { AppConstants } from "@/core/app_constants";
 import { PendingPaymentOrderStorage } from "@/data/storage";
@@ -157,11 +158,28 @@ export function SubscriptionScreen({
     payment.isPollingOrder;
   const canActivate =
     selectedPlan !== null && payment.agreed && !isPaymentBusy;
-  const backHref = returnTo === "chat" ? ROUTES.chat : ROUTES.sidebar;
+
+  const consumeSubscriptionExitUrl = (): string | null => {
+    const pendingImageReturn = consumePendingChatImageReturn();
+    if (pendingImageReturn) return pendingImageReturn.returnUrl;
+    return null;
+  };
+
+  const handleBackClick = () => {
+    router.replace(
+      consumeSubscriptionExitUrl() ??
+        (returnTo === "chat" ? ROUTES.chat : ROUTES.sidebar),
+    );
+  };
 
   const finishPaymentSuccessClose = () => {
     setShowPaymentSuccessDialog(false);
     paymentDispatch({ type: "PaymentReset" });
+    const pendingExitUrl = consumeSubscriptionExitUrl();
+    if (pendingExitUrl) {
+      router.replace(pendingExitUrl);
+      return;
+    }
     if (returnTo === "chat") {
       router.replace(ROUTES.chat);
     }
@@ -219,7 +237,7 @@ export function SubscriptionScreen({
         <header className={styles.header}>
           <BackButton
             className={styles.backSlot}
-            href={backHref}
+            onClick={handleBackClick}
             variant="soft"
           />
         </header>