feat(payment): support user-bound seven-discount offers

src/app/chat/chat-screen.tsx

@@ -17,8 +17,9 @@ import { useCharacterCatalog } from "@/providers/character-catalog-provider";
 import { clearPendingChatNavigation } from "@/lib/navigation/chat_unlock_session";
 import { buildGlobalPageUrl } from "@/router/global-route-context";
 import { resolveAuthenticatedNavigation } from "@/router/navigation-resolver";
-import { getCharacterRoutes, ROUTES } from "@/router/routes";
+import { getCharacterRoutes, ROUTE_BUILDERS, ROUTES } from "@/router/routes";
 import type { CommercialAction } from "@/data/schemas/chat";
+import { paymentApi } from "@/data/services/api";
 import { behaviorAnalytics } from "@/lib/analytics";
 
 import { MobileShell } from "@/app/_components/core";
@@ -252,7 +253,7 @@ export function ChatScreen() {
     router.push(characterRoutes.privateZone);
   }
 
-  function handleCommercialAction(action: CommercialAction): void {
+  async function handleCommercialAction(action: CommercialAction): Promise<void> {
     behaviorAnalytics.elementClick(
       "chat.commercial_action.open",
       action.ctaLabel,
@@ -264,6 +265,29 @@ export function ChatScreen() {
         target: action.target,
       },
     );
+    if (action.target === "discountConsent") {
+      const offer = await paymentApi.acceptCommercialOffer(action.actionId);
+      behaviorAnalytics.elementClick(
+        "chat.commercial_action.accepted",
+        action.ctaLabel,
+        {
+          actionId: action.actionId,
+          actionType: action.type,
+          characterId: state.characterId,
+          planId: offer.planId,
+          discountPercent: offer.discountPercent,
+        },
+      );
+      router.push(
+        ROUTE_BUILDERS.subscription(offer.subscriptionType, {
+          sourceCharacterSlug: character.slug,
+          returnTo: "chat",
+          planId: offer.planId,
+          commercialOfferId: offer.commercialOfferId,
+        }),
+      );
+      return;
+    }
     router.push(
       action.target === "giftCatalog"
         ? characterRoutes.tip