fix: 🐛 Enhance enum dictionary generation and improve enum class resolution

[linwumingshi]

fix: 🐛 Fixed issue where enum dictionary could not be generated for enums referenced by @see in the same package as the current class.

• Add package name prefix to resolve enum classes that are not fully qualified
• Attempt to find enum class using the declaring class's package name
• Improve error handling and return null for invalid class names

Closes #995

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fix: 🐛 improve enum class resolution and refactor related methods

• Enhance enum class resolution logic to handle various scenarios
• Refactor methods for better code organization and readability
• Improve comments and method names for clarity
• Update related helper classes to use new methods

Closes #994

[github-actions]

Thanks for your this PR. 🙏
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If so, please add or update documents(markdown type) in docs/ for repository smart-doc-group/smart-doc-group.github.io

In addition, if you have added new features, please provide example code in the repository smart-doc-group/smart-doc-example-cn. This will help other users understand how to use the new features.

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感谢您提交的PR。 🙏
请再次查看您的PR内容，确认是否包含任何使用方式 配置参数的变更，如：新增配置参数、修改默认配置等操作。
如果是，请确保在提交之前，在仓库smart-doc-group/smart-doc-group.github.io中的docs/目录下添加或更新文档（markdown格式）。

另外，如果您添加了新功能，请在仓库smart-doc-group/smart-doc-example-cn中提供示例代码。这将帮助其他用户了解如何使用新功能。