added clear cache tool

app.py

@@ -23,7 +23,7 @@ def call_api(endpoint: str, payload: dict) -> str:
         return str(e)
 
 
-def clear_cache_tool(docs_path="data/docs"):
+'''def clear_cache_tool(docs_path="data/docs"):
     """
     🧹 Clear Cache MCP Tool
     Deletes all files and directories inside docs_path on the server.
@@ -39,7 +39,7 @@ def clear_cache_tool(docs_path="data/docs"):
         r.raise_for_status()
         return r.json()
     except Exception as e:
-        return {"error": str(e)}
+        return {"error": str(e)}'''
 
 
 def upload_docs_tool(files, docs_path="data/docs"):