fix: update template to iterate over tools list directly

prompts.yaml

@@ -21,7 +21,7 @@ prompt_templates:
        d. Use final_answer to submit your response
 
     Available tools:
-    {%- for tool in tools.values() %}
+    {%- for tool in tools %}
     - {{ tool.name }}: {{ tool.description }}
     {%- endfor %}
 
@@ -89,7 +89,7 @@ prompt_templates:
       ```
 
       Available tools:
-      {%- for tool in tools.values() %}
+      {%- for tool in tools %}
       - {{ tool.name }}: {{ tool.description }}
       {%- endfor %}