fix(backend): support unlisted versions

[icgnos]

Checklist

• Changes have been tested locally and work as expected.
• All tests in workflows pass successfully.
• Documentation has been updated if necessary.
• Code formatting and commit messages align with the project's conventions.
• Comments have been added for any complex logic or functionality if possible.

This PR is a ..

• 🆕 New feature
• 🐞 Bug fix
• 🛠 Refactoring
• ⚡️ Performance improvement
• 🌐 Internationalization
• 📄 Documentation improvement
• 🎨 Code style optimization
• ❓ Other (Please specify below)

Related Issues

• closes [Feature] 支持更多 MC 版本下载 #1014

Description

• 没有更改 versions.txt
• 未列出版本统一使用 alist.8mi.tech/d/mirror/unlisted-versions-of-minecraft/Auto，这种做法可能需要进一步讨论
• 某些名字很长的版本（如1_19_deep_dark_experimental_snapshot-1）文字会超出范围，可能需要考虑更名
• 排序实例时可能出现问题，因为 build_game_version_cmp_fn 的逻辑缺陷（或许可以修正）