feat(武器系统): 添加七魂武器及相关资源

添加七魂武器系统，包括：
- 七魂武器脚本和场景
- 灵魂子弹脚本和场景
- 相关图片资源和音效
- 修改公鸡角色的武器配置
- 修复子弹基础类的UI状态检测问题

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