new feature: frontend with separated responses

tests/migration/test_multi_intent_contas.py

@@ -1,5 +1,8 @@
 from agent_framework.routing.config_loader import load_intents, load_multi_intent_config
+import pytest
+
 from agent_framework.routing.multi_intent import MultiIntentPlanner
+from agent_framework.routing.pending_topics import drain_pending_topics
 from agent_framework.mcp.tool_policy import ToolPolicyRegistry
 
 
@@ -53,3 +56,55 @@ def test_duas_mais_caras_sao_calculadas_sobre_evidencia_autorizada():
     selected = _select_relative_invoice_charges("as duas mais caras", args)
     assert [row["value"] for row in selected] == [29.90, 24.90]
     assert [row["charge_date"] for row in selected] == ["02/09/26", "04/09/26"]
+
+
+@pytest.mark.asyncio
+async def test_promocao_transacional_substitui_snapshot_de_continuidade_anterior():
+    async def orders_handler(state):
+        assert state["intent"] == "retail_order_cancel"
+        return {
+            "answer": "Informe o número do pedido que deseja cancelar.",
+            "transaction_status": "COLLECTING_PARAMETERS",
+            "active_transaction": {
+                "tool_name": "cancelar_pedido",
+                "status": "COLLECTING_PARAMETERS",
+            },
+            "missing_parameters": ["order_id"],
+            "pending_tool_call": {
+                "tool_name": "cancelar_pedido",
+                "arguments": {},
+            },
+            "next_state": "COLLECTING_PARAMETERS",
+        }
+
+    drained = await drain_pending_topics(
+        {
+            "answer": "Devolução concluída.",
+            "route": "support_agent",
+            "active_agent": "support_agent",
+            "intent": "retail_support_exchange_return",
+            "transaction_status": "COMPLETED",
+            "route_decision": {
+                "route": "support_agent",
+                "agent": "support_agent",
+                "intent": "state:WAITING_SUPPORT_CONFIRMATION",
+            },
+            "pending_topics": [{
+                "operation_id": "op-3",
+                "agent": "orders_agent",
+                "intent": "retail_order_cancel",
+                "domain": "retail",
+                "tools": ["consultar_pedido", "cancelar_pedido"],
+                "source_text": "quero cancelar pedido",
+                "disposition": "defer",
+            }],
+        },
+        "Devolução concluída.",
+        {"orders_agent": orders_handler},
+    )
+
+    assert drained.state_patch["route"] == "orders_agent"
+    assert drained.state_patch["transaction_status"] == "COLLECTING_PARAMETERS"
+    assert drained.state_patch["route_decision"]["agent"] == "orders_agent"
+    assert drained.state_patch["route_decision"]["intent"] == "retail_order_cancel"
+    assert drained.state_patch["route_decision"]["metadata"]["promoted_from_pending_topics"] is True