fix: migliora intent detection e parsing message dict

- Shell commands: supporta comando singolo (pwd, echo) oltre a quelli con argomenti
- write_file: parsing migliorato per estrarre contenuto con vari pattern
- invoke: gestisce correttamente messaggi in formato dict (non solo oggetti con .content)

Fix principali:
- ls, pwd, echo, git ora funzionano come execute
- write_file con 'con dentro' e virgolette
- llm.invoke con {content: 'testo'} invece di HumanMessage

ollama_agent.py

@@ -342,12 +342,13 @@ For other questions, just answer normally without tools."""
         file_path = path_match.group(1) if path_match else None
         
         # Execute command patterns - check FIRST for shell commands with flags
-        # Shell commands like "ls -lha", "git status" should use execute
-        if ('ls' in text_lower or 'git' in text_lower or 'cat' in text_lower or 
-            'grep' in text_lower or 'find' in text_lower or 'pwd' in text_lower or
-            'cd ' in text_lower or 'mkdir' in text_lower or 'rm ' in text_lower or
-            'cp ' in text_lower or 'mv ' in text_lower or 'chmod' in text_lower) and ' ' in text:
-            return ToolCall(id='intent', name='execute', arguments={'command': text.strip()})
+        # Shell commands like "ls -lha", "git status", "pwd", "echo" should use execute
+        shell_commands = ['ls', 'git', 'cat', 'grep', 'find', 'pwd', 'echo', 'cd', 
+                         'mkdir', 'rm', 'cp', 'mv', 'chmod', 'head', 'tail', 'sort', 'uniq']
+        # Check for command alone or with arguments
+        for cmd in shell_commands:
+            if text_lower.strip() == cmd or text_lower.startswith(cmd + ' '):
+                return ToolCall(id='intent', name='execute', arguments={'command': text.strip()})
         
         # System info patterns (more comprehensive)
         system_patterns = [
@@ -400,17 +401,29 @@ For other questions, just answer normally without tools."""
         has_write_keyword = any(k in text_lower for k in write_keywords)
         
         if has_write_keyword and file_path:
-            # Extract content from quoted text
-            content_match = re.search(r'["\']([^"\']+)["\']', text)
+            # Extract content - try multiple patterns
+            content = None
+            
+            # Pattern 1: "con dentro 'testo'" o "con 'testo'"
+            content_match = re.search(r'con\s+(?:dentro\s+)?["\']([^"\']+)["\']', text, re.IGNORECASE)
             if content_match:
                 content = content_match.group(1)
-            else:
-                # Try to extract content between "con dentro" and quotes
-                content_match = re.search(r'con dentro ["\']([^"\']+)["\']', text)
+            
+            # Pattern 2: testo tra virgolette anywhere
+            if not content:
+                content_match = re.search(r'["\']([^"\']+)["\']', text)
                 if content_match:
                     content = content_match.group(1)
-                else:
-                    content = "Content not specified"
+            
+            # Pattern 3: contenuto dopo "con" fino alla fine (senza virgolette)
+            if not content:
+                # Match: con <resto della frase senza virgolette iniziali/finali>
+                after_con = re.search(r'con\s+["\']?(.+?)["\']?\s*$', text, re.IGNORECASE | re.DOTALL)
+                if after_con:
+                    content = after_con.group(1).strip()
+            
+            if not content:
+                content = "Content not specified"
             
             return ToolCall(id='intent', name='write_file', arguments={'path': file_path, 'content': content})
         
@@ -433,7 +446,11 @@ For other questions, just answer normally without tools."""
         """
         # Estrai il messaggio utente
         user_message = input_dict.get("messages", [])[-1]
-        if hasattr(user_message, 'content'):
+        
+        # Gestisci diversi formati di messaggio
+        if isinstance(user_message, dict):
+            user_content = user_message.get("content", str(user_message))
+        elif hasattr(user_message, 'content'):
             user_content = user_message.content
         else:
             user_content = str(user_message)