Addition of a Server

[AtakanTekparmak]

The agent should also be runnable as an HTTP server for users who wish to run the agent locally and expose it (over an API with user management maybe). It should have methods along the lines of:

• start_session(): Starts a session of an agent, returns an id
• send_message(message: str, session_id: int, show_tool_calls: False): Sends a message to the agent, returns agent response and the tool calls if show_tool_calls is set to True
• end_session(session_id: int): Ends the session