```

feat(gameplay): 更新防御关卡金币系统

- 修改金币显示文本格式，移除冒号分隔符
- 实现差异化金币奖励机制：小怪固定1金币，英雄/Boss单位固定5金币
- 添加战术倍率支持，确保最低1金币奖励
- 增加击杀日志输出功能
- 实现英雄/Boss单位识别逻辑，通过名称和角色数据进行判断
```

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