fix: pass customer_id directly to tools instead of state

- Avoids JSON serialization errors with HumanMessage objects
- schedule_appointment now receives customer_id as direct parameter

src/naliiabot/bot/agent/agent.py

@@ -228,7 +228,9 @@ class Agent:
         tool_results: list[BaseMessage] = []
 
         for tool_call in last_message.tool_calls:
-            result = self._execute_tool(tool_call, state)
+            result = self._execute_tool(
+                tool_call, state.get("customer_id"), state.get("customer_name")
+            )
             tool_results.append(result)
 
             if self._post_tool_hook:
@@ -236,7 +238,9 @@ class Agent:
 
         return {"messages": state["messages"] + tool_results}
 
-    def _execute_tool(self, tool_call: dict, state: MessagesState) -> ToolMessage:
+    def _execute_tool(
+        self, tool_call: dict, customer_id=None, customer_name=None
+    ) -> ToolMessage:
         """
         Ejecuta una herramienta individual con manejo de errores.
         """
@@ -253,7 +257,10 @@ class Agent:
 
         try:
             tool = self._tools_by_name[tool_name]
-            tool_args["state"] = state
+            if customer_id is not None:
+                tool_args["customer_id"] = customer_id
+            if customer_name is not None:
+                tool_args["customer_name"] = customer_name
             observation = tool.invoke(tool_args)
 
             return ToolMessage(

src/naliiabot/bot/tools/naliia_tools.py

@@ -160,7 +160,7 @@ class NaliiaTools:
         service_center=11,
         customer=None,
         professional=6,
-        state=None,
+        customer_id=None,
     ) -> bool:
         """
         Permite agendar una cita para un cliente en un centro de servicio específico.
@@ -170,8 +170,9 @@ class NaliiaTools:
             schedule_time: Hora de la cita en formato HH:MM:SS.
             description (str): Descripción o motivo de la cita.
             service_center (int, optional): ID del centro de servicio. Por defecto es 11.
-            customer (int, optional): ID del cliente. Si no se proporciona, se obtiene del estado.
+            customer (int, optional): ID del cliente. Si no se proporciona, se usa customer_id.
             professional (int, optional): ID del profesional. Por defecto es 6.
+            customer_id (int, optional): ID del cliente obtenido del estado.
 
         Returns:
             bool: True si la cita fue agendada exitosamente, False en caso contrario.
@@ -186,9 +187,9 @@ class NaliiaTools:
         if not schedule_date and schedule_time:
             return False
 
-        if customer is None and state is not None:
-            customer = state.get("customer_id", 0)
-            logger.info(f"Customer ID obtained from state: {customer}")
+        if customer is None and customer_id is not None:
+            customer = customer_id
+            logger.info(f"Customer ID obtained from agent state: {customer}")
 
         if customer is None or customer == 0:
             logger.warning("No se pudo obtener el ID del cliente")