Add virtualized chat pagination (#1080)

packages/client/src/api/hermes/chat.ts

@@ -75,6 +75,10 @@ export interface RunEvent {
 export interface ResumeSessionPayload {
   session_id: string
   messages: any[]
+  messageTotal?: number
+  messageLoadedCount?: number
+  messagePageLimit?: number
+  hasMoreBefore?: boolean
   isWorking: boolean
   isAborting?: boolean
   events: Array<{ event: string; data: RunEvent }>

packages/client/src/api/hermes/group-chat.ts

@@ -162,8 +162,15 @@ export async function listRooms(): Promise<{ rooms: RoomInfo[] }> {
     return request('/api/hermes/group-chat/rooms')
 }
 
-export async function getRoomDetail(roomId: string): Promise<{ room: RoomInfo; messages: ChatMessage[]; agents: RoomAgent[]; members: MemberInfo[] }> {
-    return request(`/api/hermes/group-chat/rooms/${roomId}`)
+export async function getRoomDetail(
+    roomId: string,
+    options: { offset?: number; limit?: number } = {},
+): Promise<{ room: RoomInfo; messages: ChatMessage[]; agents: RoomAgent[]; members: MemberInfo[]; total?: number; offset?: number; limit?: number; hasMore?: boolean }> {
+    const params = new URLSearchParams()
+    if (options.offset != null) params.set('offset', String(options.offset))
+    if (options.limit != null) params.set('limit', String(options.limit))
+    const query = params.toString()
+    return request(`/api/hermes/group-chat/rooms/${roomId}${query ? `?${query}` : ''}`)
 }
 
 export async function joinRoomByCode(code: string): Promise<{ room: RoomInfo }> {

packages/client/src/api/hermes/sessions.ts

@@ -30,6 +30,15 @@ export interface SessionDetail extends SessionSummary {
   messages: HermesMessage[]
 }
 
+export interface PaginatedSessionMessages {
+  session: SessionSummary
+  messages: HermesMessage[]
+  total: number
+  offset: number
+  limit: number
+  hasMore: boolean
+}
+
 export interface SessionSearchResult extends SessionSummary {
   matched_message_id: number | null
   snippet: string
@@ -96,6 +105,26 @@ export async function fetchSession(id: string, profile?: string | null): Promise
   }
 }
 
+export async function fetchSessionMessagesPage(
+  id: string,
+  offset: number,
+  limit = 300,
+  profile?: string | null,
+): Promise<PaginatedSessionMessages | null> {
+  try {
+    const params = new URLSearchParams()
+    params.set('offset', String(offset))
+    params.set('limit', String(limit))
+    if (profile) params.set('profile', profile)
+    const res = await request<PaginatedSessionMessages>(
+      `/api/hermes/sessions/conversations/${encodeURIComponent(id)}/messages/paginated?${params}`,
+    )
+    return res
+  } catch {
+    return null
+  }
+}
+
 /**
  * Fetch Hermes session detail only (exclude api_server source)
  */