feat(ItemMerge): 调整首充奖励相关配置

- 设置 openserverday 为 1，限制首充奖励仅在开服第一天有效
- 移除 redpoint 配置，取消首充奖励的红点提示

LogicServer/data/config/Merge/ItemMerge.config

@@ -1941,8 +1941,8 @@ ItemMergeConfig = {
 					type = 4,
 					count = 10000,
 				} },
+				openserverday = 1,
 				level = 1,
-				redpoint = 1,
 			},
 		},
 		[2] = {