feat: improve logging for client connects and disconnects

- add connection log to record client address on connect
- enhance disconnection log to include client address

🤖

internal/websocket/handle_connections.go

@@ -27,6 +27,8 @@ func HandleConnections(w http.ResponseWriter, r *http.Request) {
 	}
 	defer ws.Close()
 
+	log.Printf("Client connected from %v", ws.NetConn().RemoteAddr())
+
 	// Register the new client
 	mu.Lock()
 	Clients[ws] = &models.Client{