refactor(common): 重构宠物相关信息结构

- 修改 PetInfo 和 PetEffectInfo 结构体，统一字段命名规范
- 更新 SkillInfo 结构体，增加技能等级字段
- 删除未使用的 LoginUserInfo 和 ServerInfo 结构体
- 引入 google/uuid 包，用于后续可能的唯一标识生成

common/core/info/map/PeopleWalkInboundInfo.java

@@ -0,0 +1,22 @@
+package org.nieo.seerproject.common.net.info.map;
+
+import lombok.Data;
+import org.nieo.seerproject.common.annotations.FieldDescription;
+import org.nieo.seerproject.common.annotations.InboundMessageType;
+import org.nieo.seerproject.common.annotations.serialize.AutoCodec;
+import org.nieo.seerproject.common.annotations.serialize.UInt;
+import org.nieo.seerproject.common.net.InboundMessage;
+import org.nieo.seerproject.common.net.MessageCommandIDRegistry;
+import org.nieo.seerproject.common.structs.Point;
+
+@Data
+@AutoCodec
+@InboundMessageType(MessageCommandIDRegistry.People_Walk)
+public class PeopleWalkInboundInfo implements InboundMessage {
+	@FieldDescription("0为走，1为飞行模式")
+	private @UInt long flag;
+	@FieldDescription("直接给坐标x，y")
+	private Point point = new Point();
+	@FieldDescription("暂定 占位字符2")
+	private String reverse2;
+}