fix: migliora intent detection con più patterns

ollama_agent.py

@@ -361,13 +361,15 @@ For other questions, just answer normally without tools."""
     
     def _detect_intent(self, text: str) -> Optional[ToolCall]:
         """Detect common intents directly without relying on model"""
-        text_lower = text.lower()
+        text_lower = text.lower().strip()
         
         # System info patterns
         system_patterns = [
             'sistema operativo', 'so sto', 'che os', 'what os', 
             'che sistema', 'which system', 'operating system',
-            'che versione', 'python version', 'versione python'
+            'che versione', 'python version', 'versione python',
+            'sto usando', 'sto usand', 'che so', 'which computer',
+            'che tipo di sistema', 'che computer', 'what system'
         ]
         if any(p in text_lower for p in system_patterns):
             return ToolCall(id='intent', name='system_info', arguments={})
@@ -375,7 +377,8 @@ For other questions, just answer normally without tools."""
         # List files patterns
         list_patterns = [
             'lista', 'listare', 'listami', 'elenco', 'mostrami i file',
-            'list files', 'list directory', 'ls', 'file nella cartella'
+            'list files', 'list directory', 'ls', 'file nella cartella',
+            'file del', 'cartella corrente', 'mostra i file'
         ]
         if any(p in text_lower for p in list_patterns):
             return ToolCall(id='intent', name='ls', arguments={'path': '.'})
@@ -404,16 +407,25 @@ For other questions, just answer normally without tools."""
             result = self._execute_tool(detected_tool)
             
             # Format result as a clean response
+            response_text = ""
             try:
-                result_data = json.loads(result) if isinstance(result, str) else result
-                if isinstance(result_data, dict):
-                    if "result" in result_data:
-                        return {"messages": self.messages, "response": result_data["result"]}
-                    elif "error" in result_data:
-                        return {"messages": self.messages, "response": f"Errore: {result_data['error']}"}
-            except:
-                pass
-            return {"messages": self.messages, "response": str(result)}
+                if isinstance(result, str):
+                    try:
+                        result = json.loads(result)
+                    except:
+                        response_text = result
+                
+                if isinstance(result, dict):
+                    if "result" in result:
+                        response_text = result["result"]
+                    elif "error" in result:
+                        response_text = f"Errore: {result['error']}"
+                    else:
+                        response_text = json.dumps(result, indent=2)
+            except Exception as e:
+                response_text = str(result) if not response_text else response_text
+            
+            return {"messages": self.messages, "response": response_text}
         
         # Loop principale: risposta -> parse tools -> esegui -> ripeti
         iteration = 0