* fix: use GITHUB_SERVER_URL to determine email domain for GitHub Enterprise
- Extract hostname from GITHUB_SERVER_URL environment variable
- Use users.noreply.github.com for GitHub.com
- Use users.noreply.{hostname} for GitHub Enterprise instances
Fixes #288
Co-authored-by: Ashwin Bhat <ashwin-ant@users.noreply.github.com>
* lint
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Co-authored-by: claude[bot] <209825114+claude[bot]@users.noreply.github.com>
Co-authored-by: Ashwin Bhat <ashwin-ant@users.noreply.github.com>