fix: speed up chat detail pagination

ai_knowledge_base_v2/apps/admin-web/src/services/api.ts

@@ -8,6 +8,7 @@ import type {
   AiLogRecord,
   ApiResponse,
   ChatDetail,
+  ChatMessageRecord,
   ChatRecord,
   ChatRecordQuery,
   DashboardStats,
@@ -203,6 +204,8 @@ export const api = {
   chats: (query: ChatRecordQuery = {}) => request<PageResult<ChatRecord>>(`/admin/chat/list${queryString(query)}`),
   chatDetail: (sessionId: number, query: { messagePage?: number; messagePageSize?: number } = {}) =>
     request<ChatDetail>(`/admin/chat/${sessionId}${queryString(query)}`),
+  chatMessages: (sessionId: number, query: { page?: number; pageSize?: number } = {}) =>
+    request<PageResult<ChatMessageRecord>>(`/admin/chat/${sessionId}/messages${queryString(query)}`),
   exportChats: (query: ChatRecordQuery = {}) => download(`/admin/chat/export${queryString(query)}`, "chat_records.csv"),
   aiLogs: (query: { sessionId?: number; userId?: number; status?: string; page?: number; pageSize?: number } = {}) =>
     request<PageResult<AiLogRecord>>(`/admin/ai-log/list${queryString(query)}`),