fix(chat): handle guest total limit

src/app/chat/chat-screen.tsx

@@ -43,10 +43,15 @@ export function ChatScreen() {
   // 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);
 
-  // 消息数量限制由后端统一返回 blocked/daily_limit，前端不再处理本地额度。
-  const showDailyLimitBanner =
+  // 消息数量限制由后端统一返回 blocked，前端不再处理本地额度。
+  const showMessageLimitBanner =
     state.paywallTriggered &&
-    state.paywallReason === "daily_limit";
+    (state.paywallReason === "daily_limit" ||
+      state.paywallReason === "total_limit");
+  const messageLimitTitle =
+    state.paywallReason === "total_limit"
+      ? "The limit for free chat times\nhas been reached"
+      : undefined;
   const showPhotoPaywallBanner =
     state.paywallTriggered && state.paywallReason === "photo_paywall";
   const showPrivatePaywallBanner =
@@ -168,8 +173,9 @@ export function ChatScreen() {
             />
           ) : null}
 
-          {showDailyLimitBanner ? (
+          {showMessageLimitBanner ? (
             <ChatQuotaExhaustedBanner
+              title={messageLimitTitle}
             />
           ) : (
             <ChatInputBar disabled={state.isReplyingAI} />

src/data/mock/chat/responses/send-message-total-limit-blocked.json

@@ -0,0 +1,30 @@
+{
+  "code": 200,
+  "message": "success",
+  "success": true,
+  "data": {
+    "mode": "http",
+    "type": "text",
+    "reply": "",
+    "voiceUrl": "",
+    "audioUrl": "",
+    "intimacyChange": 0,
+    "newIntimacy": 0,
+    "relationshipStage": "密友",
+    "currentMood": "happy",
+    "messageId": "",
+    "isGuest": true,
+    "timestamp": 1782197944984,
+    "blocked": true,
+    "blockReason": "total_limit",
+    "blockDetail": {
+      "type": "guest_total_msg_limit",
+      "usedTotal": 12,
+      "limit": 5
+    },
+    "paywallTriggered": false,
+    "showUpgrade": false,
+    "imageType": null,
+    "imageUrl": null
+  }
+}

src/data/schemas/chat/chat_send_response.ts

@@ -6,7 +6,8 @@ import { z } from "zod";
 
 export const ChatBlockDetailSchema = z.object({
   type: z.string(),
-  usedToday: z.number(),
+  usedToday: z.number().optional(),
+  usedTotal: z.number().optional(),
   limit: z.number(),
 });
 

src/stores/chat/chat-machine.helpers.ts

@@ -103,7 +103,12 @@ export function applyHttpSendOutput(
 ): Partial<ChatState> {
   const { response, reply } = output;
 
-  if (response.blocked === true && response.blockReason === "daily_limit") {
+  const isMessageLimitBlocked =
+    response.blocked === true &&
+    (response.blockReason === "daily_limit" ||
+      response.blockReason === "total_limit");
+
+  if (isMessageLimitBlocked) {
     const detail = response.blockDetail;
     const lastMessage = context.messages[context.messages.length - 1];
     const messages =
@@ -115,9 +120,19 @@ export function applyHttpSendOutput(
       messages,
       isReplyingAI: false,
       paywallTriggered: true,
-      paywallReason: "daily_limit",
+      paywallReason:
+        response.blockReason === "total_limit" ? "total_limit" : "daily_limit",
       paywallDetail: detail
-        ? { usedToday: detail.usedToday, limit: detail.limit }
+        ? {
+            type: detail.type,
+            ...(detail.usedToday != null
+              ? { usedToday: detail.usedToday }
+              : {}),
+            ...(detail.usedTotal != null
+              ? { usedTotal: detail.usedTotal }
+              : {}),
+            limit: detail.limit,
+          }
         : null,
     };
   }

src/stores/chat/chat-state.ts

@@ -19,8 +19,20 @@ export interface ChatState {
    */
   wsConnected: boolean;
   paywallTriggered: boolean;
-  paywallReason: "daily_limit" | "photo_paywall" | "private_paywall" | null;
-  paywallDetail: { usedToday: number; limit: number } | null;
+  paywallReason:
+    | "daily_limit"
+    | "total_limit"
+    | "photo_paywall"
+    | "private_paywall"
+    | null;
+  paywallDetail:
+    | {
+        type?: string;
+        usedToday?: number;
+        usedTotal?: number;
+        limit: number;
+      }
+    | null;
   unlockingPrivateMessageId: string | null;
   isLoadingMore: boolean;
   hasMore: boolean;