Revert "scnd graph v2"

This reverts commit 89a7ec71b4c537ee83be47207052a1f5d75e6fee.

app.py

@@ -542,28 +542,29 @@ async def stream_agent_response(question: str, chat_history: List[List[str]]) ->
     except Exception as e:
         logger.error(f"Error updating agent memory: {str(e)}", exc_info=True)
     
-    # Add empty assistant message that will be updated
-    assistant_message = {"role": "assistant", "content": ""}
-    messages.append(assistant_message)
-    
-    # Execute the agent with proper error handling
-    try:
-        # If the user is asking for a chart, steer the agent to be concise
-        wants_chart, _desired = detect_chart_preferences(question)
-        input_text = question
-        if wants_chart:
-            input_text = (
-                "Instrucciones: Si el usuario pide una visualización y los datos ya "
-                "están en el historial, no pidas más contexto. Responde brevemente "
-                "confirmando que generarás/has generado la gráfica y, si necesitas SQL, "
-                "devuelve solo la consulta en un bloque ```sql``` sin explicaciones.\n\n"
-                f"Pregunta del usuario: {question}"
-            )
+        try:
+        # Add empty assistant message that will be updated
+        assistant_message = {"role": "assistant", "content": ""}
+        messages.append(assistant_message)
+        
+        # Execute the agent with proper error handling
+        try:
+                # If the user is asking for a chart, steer the agent to be concise
+                wants_chart, _desired = detect_chart_preferences(question)
+                input_text = question
+                if wants_chart:
+                    input_text = (
+                        "Instrucciones: Si el usuario pide una visualización y los datos ya "
+                        "están en el historial, no pidas más contexto. Responde brevemente "
+                        "confirmando que generarás/has generado la gráfica y, si necesitas SQL, "
+                        "devuelve solo la consulta en un bloque ```sql``` sin explicaciones.\n\n"
+                        f"Pregunta del usuario: {question}"
+                    )
 
-        # Let the agent use its memory; don't pass raw chat_history
-        response = await agent.ainvoke({"input": input_text})
-        logger.info(f"Agent response type: {type(response)}")
-        logger.info(f"Agent response content: {str(response)[:500]}...")
+                # Let the agent use its memory; don't pass raw chat_history
+                response = await agent.ainvoke({"input": input_text})
+            logger.info(f"Agent response type: {type(response)}")
+            logger.info(f"Agent response content: {str(response)[:500]}...")
             
             # Handle different response formats
             if hasattr(response, 'output') and response.output: