`.git` suffix inconsistently enforced

When creating a new repo, a `.git` suffix is appended here: https://github.com/gabrielcsapo/node-git-server/blob/e25c481b85f8b929146b4ea46227d0b6fd83caf4/src/git.ts#L288 and it appears to be enforced in `list`, but not everywhere

However the `.git` suffix is not a requirement anywhere else - this server is perfectly happy serving git repositories without a `.git` suffix afaict... https://github.com/gabrielcsapo/node-git-server/blob/e25c481b85f8b929146b4ea46227d0b6fd83caf4/src/util.ts#L150

This inconsistency has tripped me up a bit. I would personally be in favour of enforcing a .git suffix everywhere - possibly by redirecting to `.git` suffixed URL if a non-git suffixed URL is encountered.

This is inconsistent with bare/checked-out repo conventions though... which might suggest to enforce `.git` only if `checkout` is `false`...

I think for us we're going to enforce and stick to the suffix externally for the meantime - but it'd be good to gather opinions of other maintainers/users.

从 src/git.ts 第 288 行的仓库创建逻辑和列表行为开始，然后将它们与 src/util.ts 第 150 行进行比较。检查 bare 仓库和已 checkout 的仓库通常如何寻址，并确定后缀处理应保持一致，还是应取决于 checkout；完成的标准是制定出一致同意的策略，并在所有仓库路由中实现匹配的行为。

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