fix: improve maintenance and synchronize live conversations

backend/app/api/session_to_agent.py

@@ -29,6 +29,7 @@ from app.core.auth import CHAT_MANAGE_PERMISSIONS, get_current_user, has_any_per
 from app.database import get_db
 from app.services.chat_notifications import notify_chat_assigned
 from app.services.human_routing import notify_customer, route_session_to_human
+from app.services.agent_rooms import notify_conversation_changed
 from app.models.schemas.chat import ChatDetailResponse, TransferReasonType
 
 
@@ -131,6 +132,7 @@ async def takeover_chat(
         # Let the customer know a human joined (external channels only), before
         # the detail is read back so the notice is part of the returned thread.
         await _notify_customer_of_handover(db, session, current_user)
+        await notify_conversation_changed(current_user.organization_id, session_id)
 
         # Get updated chat details
         chat = await chat_repo.get_chat_detail(
@@ -187,6 +189,7 @@ async def route_chat_to_human(
         if not routed:
             raise HTTPException(
                 status_code=400, detail="This chat is already waiting for a human")
+        await notify_conversation_changed(current_user.organization_id, session_id)
 
         chat = await ChatRepository(db).get_chat_detail(
             session_id=session_id,
@@ -249,6 +252,7 @@ async def reassign_chat(
         success = session_repo.reassign_session(session_id=session_id, to_user_id=to_user_id)
         if not success:
             raise HTTPException(status_code=400, detail="Failed to reassign chat")
+        await notify_conversation_changed(current_user.organization_id, session_id)
 
         # Fetch updated chat detail
         chat_repo = ChatRepository(db)