fix(chat): isolate pending flows and cancel stale requests

src/app/chat/hooks/use-chat-unlock-coordinator.ts

@@ -79,6 +79,7 @@ export function useChatUnlockCoordinator({
   const trackedPaywallRef = useRef<string | null>(null);
   const chatState = useChatSelector(
     (state) => ({
+      characterId: state.context.characterId,
       historyLoaded: state.context.historyLoaded,
       isUnlockingHistory: state.matches({ userSession: "unlockingHistory" }),
       lockedHistoryCount: state.context.lockedHistoryCount,
@@ -125,7 +126,7 @@ export function useChatUnlockCoordinator({
     let cancelled = false;
 
     const resumePendingUnlock = async () => {
-      const pending = await peekPendingChatUnlock();
+      const pending = await peekPendingChatUnlock(chatState.characterId);
       if (
         cancelled ||
         !pending ||
@@ -138,7 +139,7 @@ export function useChatUnlockCoordinator({
         return;
       }
 
-      const consumed = await consumePendingChatUnlock();
+      const consumed = await consumePendingChatUnlock(chatState.characterId);
       if (cancelled || !consumed) return;
 
       chatDispatch({
@@ -157,6 +158,7 @@ export function useChatUnlockCoordinator({
     };
   }, [
     chatDispatch,
+    chatState.characterId,
     chatState.historyLoaded,
     defaultReturnUrl,
     enabled,