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/pet/PetShowOutboundInfo.java

@@ -0,0 +1,35 @@
+package org.nieo.seerproject.common.net.info.pet;
+
+import lombok.Data;
+import org.nieo.seerproject.common.annotations.FieldDescription;
+import org.nieo.seerproject.common.annotations.OutboundMessageType;
+import org.nieo.seerproject.common.annotations.serialize.AutoCodec;
+import org.nieo.seerproject.common.annotations.serialize.UInt;
+import org.nieo.seerproject.common.net.MessageCommandIDRegistry;
+import org.nieo.seerproject.common.net.OutboundMessage;
+
+@Data
+@AutoCodec
+@OutboundMessageType(MessageCommandIDRegistry.Pet_Show)
+public class PetShowOutboundInfo implements OutboundMessage {
+	@FieldDescription("米米号")
+	private @UInt long UserID;
+	@FieldDescription("精灵获得的时间")
+	private @UInt long CatchTime;
+	@FieldDescription("精灵编号")
+	private @UInt long PetID;
+	@FieldDescription("1为显示 0为收回")
+	private @UInt long flag;
+	@FieldDescription("个体")
+	private @UInt long dv;
+	@FieldDescription("闪")
+	private @UInt long shiny;
+	@FieldDescription("皮肤id")
+	private @UInt long skinID;
+	@FieldDescription("填充字段")
+	private @UInt long reserved;
+	@FieldDescription("填充字段")
+	private @UInt long reserved1;
+	@FieldDescription("填充字段")
+	private @UInt long reserved2;
+}