Add CopilotDisplayName helper that translates known Copilot bot
logins (copilot-pull-request-reviewer, copilot-swe-agent) to the
friendly 'Copilot (AI)' display name. Applied to:
- PullRequestReview.AuthorLogin() — review comment author
- Comment.AuthorLogin() — PR/issue comment author
- parseReviewers() in pr view — reviewer list display
This ensures gh pr view shows 'Copilot (AI)' instead of the raw
'copilot-pull-request-reviewer' login for both the reviewer status
line and any review comments left by Copilot.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
04bc0d27f4