feat(backend_server.py): add send_close() method

src/judas_server/backend/backend_server.py

@@ -73,6 +73,16 @@ class BackendServer:
         self.logger.info(f"[>] Sending ACK to {client}")
         client.outbound += ack
 
+    def send_close(self, client: Client) -> None:
+        """Send a CLOSE message to a client.
+
+        Args:
+            client (Client): The client to send the CLOSE message to.
+        """
+        close_msg: bytes = Message.close().to_bytes()
+        self.logger.info(f"[>] Sending CLOSE to {client}")
+        client.outbound += close_msg
+
     def _accept_connection(self, sock: socket.socket) -> None:
         """Accept a new client connection.
 
@@ -96,7 +106,6 @@ class BackendServer:
             sock (socket.socket): The client socket to disconnect.
         """
         self.logger.info(f"[-] Disconnecting {client}...")
-        self.logger.debug("[*] Sending DNR message...")
 
         try:
             self.selector.unregister(client.socket)