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/battle/FightOverOutboundInfo.java

@@ -0,0 +1,20 @@
+package org.nieo.seerproject.common.net.info.battle;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.nieo.seerproject.common.annotations.OutboundMessageType;
+import org.nieo.seerproject.common.annotations.serialize.AutoCodec;
+import org.nieo.seerproject.common.net.MessageCommandIDRegistry;
+import org.nieo.seerproject.common.net.OutboundMessage;
+
+@Data
+@Builder
+@AutoCodec
+@NoArgsConstructor
+@AllArgsConstructor
+@OutboundMessageType(MessageCommandIDRegistry.Fight_Over)
+public class FightOverOutboundInfo implements OutboundMessage {
+	private FightOverInfo overInfo;
+}