Incorrect Co-Author Attribution for Claude Code Commits to GitHub

Bug Description
When Claude Code adds co-author attribution to commits using Co-Authored-By: Claude <noreply@anthropic.com>, GitHub is attributing these commits to an unrelated user account "Panchajanya1999" instead of an official Anthropic/Claude account.

Steps to Reproduce:

1. Use Claude Code to make changes to a repository
2. Let Claude Code create a commit (it automatically adds Co-Authored-By: Claude <noreply@anthropic.com>)
3. Push the commit to GitHub
4. View the commit on GitHub - the co-author shows as "Panchajanya1999"

Expected Behavior:
The co-author should either:

• Link to an official Anthropic/Claude GitHub account
• Show as an unlinked email address
• Use a different email domain that Anthropic controls

Actual Behavior:
The commits are being attributed to GitHub user "Panchajanya1999" who appears to have registered the noreply@anthropic.com email address on GitHub.

Impact:

• Incorrect attribution of work
• Potential security/reputation risk as commits appear to be co-authored by an unknown third party
• Confusion for users who see an unexpected co-author on their commits

Environment Info

• Platform: macos
• Terminal: zed
• Version: 1.0.11
• Feedback ID: ed2bb839-19ea-45fc-8f63-fc826453cfc3