Added agent.py for auto testing.

agent.py

@@ -0,0 +1,12 @@
+from agent_config import create_agent
+
+class BasicAgent:
+    def __init__(self):
+        print("BasicAgent initialized.")
+        self.agent = create_agent()
+
+    def __call__(self, question: str) -> str:
+        try:
+            return self.agent.run(question)
+        except Exception as e:
+            return f"Error: {e}"