fix: 延迟发送gameOver消息确保最后一手牌先显示

app/internal/ws/hub.go

@@ -186,10 +186,13 @@ func (c *Client) handleMessage(data []byte) {
 		room, _ := c.Hub.GameMgr.GetRoom(c.RoomID)
 		if room != nil && room.State == models.RoomStateFinished {
 			c.Hub.broadcastFinalState(c.RoomID, room)
+			go func() {
+				time.Sleep(100 * time.Millisecond)
 				c.Hub.broadcastToRoom(c.RoomID, models.Message{
 					Type: models.MsgTypeGameOver,
 					Data: map[string]string{"winnerId": room.LastWinner},
 				})
+			}()
 		} else {
 			c.Hub.broadcastRoomState(c.RoomID)
 		}