fix(payment): inherit chat recipient without selector

src/app/subscription/use-subscription-payment-flow.ts

@@ -7,7 +7,6 @@ import { usePaymentRouteFlow } from "@/app/_hooks/use-payment-route-flow";
 import type { PayChannel } from "@/data/schemas/payment";
 import {
   DEFAULT_CHARACTER,
-  DEFAULT_CHARACTER_SLUG,
   getCharacterBySlug,
 } from "@/data/constants/character";
 import {
@@ -36,7 +35,7 @@ export function useSubscriptionPaymentFlow({
   shouldResumePendingOrder,
   returnTo,
   initialPayChannel,
-  sourceCharacterSlug = DEFAULT_CHARACTER_SLUG,
+  sourceCharacterSlug = null,
   initialPlanId = null,
   initialAutoRenew = null,
   commercialOfferId = null,