* fix(workspaces): gate the GitHub palette number match on repo identity
`repoMatchesGitHubSlug` returned the permissive `'unknown'` whenever the repo
displayName was not in `owner/repo` form and no upstream metadata existed — the
common basename-named non-fork case. The caller only rejects on `false`, so a
pasted issue/PR URL could activate a workspace in a different repo that happened
to share the number, since issue/PR numbers are per-repo.
Mirror the GitLab gate from #14381: fall back to the probed
`gitRemoteIdentity.canonicalKey` before giving up, comparing host and owner/repo
after normalizing port, `www.`, and case. An `upstream`-derived identity stays
`'unknown'` because `deriveGitRemoteIdentity` ranks `upstream` above `origin`, so
a fork's own origin is invisible and rejecting would drop URLs from the fork the
user actually checked out.
The canonicalKey compare runs after the displayName branch: displayName is
compared host-agnostically, so mirrors and host aliases of the same owner/repo
keep matching as they do today, and the probed remote only fills in where no
name evidence exists.
Refs STA-4237
* fix(workspaces): keep SSH host aliases matching in the palette identity gate
`git remote -v` reports ssh.github.com, www., and ~/.ssh/config `Host` aliases
verbatim, so comparing a probed canonicalKey against a pasted URL host rejected
legitimate GitHub/GitLab remotes. Normalize the alias hosts both sides can fold
offline, and downgrade a host-only mismatch to 'unknown' when the probed host is
dotless (an unexpandable OpenSSH alias); dotted hosts like ghe.example.com still
lose. Lifts the GitHub host normalizer into shared instead of a third copy.
* fix(repos): keep the www host fold out of the derived project identity
getProjectIdentityKey feeds the persisted Project id, so folding www. there
re-keyed existing projects on upgrade and dropped localWindowsRuntimePreference.
Restrict the fold to the palette's URL-vs-remote comparison, and pin the derived
id for a www. remote so it cannot drift silently again.
Neil
Jinwoo HongandOrca