Initial commit with full functionality extend app req tools

tools/final_answer.py

@@ -11,7 +11,7 @@ class FinalAnswerTool(Tool):
     # Define inputs with the correct type string
     inputs: Dict[str, Any] = {
         "answer": {
-            "type": "string",  # Changed from 'str' to 'string'
+            "type": "string",
             "description": "The final answer to be returned"
         }
     }
@@ -23,11 +23,17 @@ class FinalAnswerTool(Tool):
         super().__init__()
         self.description = description or self.description
     
-    def __call__(self, answer: str) -> str:
+    def forward(self, answer: str) -> str:
         """Process and return the final answer.
+        
         Args:
             answer: The answer text to be returned
+        
         Returns:
             str: The processed answer
         """
-        return answer
+        return answer
+
+    def __call__(self, answer: str) -> str:
+        """Alias for forward method to maintain compatibility"""
+        return self.forward(answer)