Repository and compare browsers list .git and offer to propagate, copy or delete it #492

What's wrong

The repository browser (ShowRepoBrowser) and the compare browser (ShowCompareBrowser) list everything Directory.EnumerateFileSystemEntries returns (ListBrowserEntries, ProjectDirector/ProjectDirector.cs:2429), including the .git directory. Each row offers the same actions as any other entry: Propagate in the repo browser, Give/Take and X in the compare browser.

• Expected: .git is hidden from both browsers (scanning already skips it, :1317), or at least offers no copy, propagate or delete action.
• Actual: .git is the first row in both listings (see docs/gallery/selecting-a-repository.png and comparing-two-repositories.png). Copying or deleting it would copy another repository's object store or delete this one's history.

Related: #440 covers the browsers' path handling. This is about what they list.

Generated by Claude Code