Agent mode now fetches the authenticated user (claude[bot] when using Claude App token)
and configures git identity properly, matching the behavior of tag mode.
This fixes the issue where commits in agent mode were failing due to missing git identity.
This allows workflows to use the Claude App token obtained by the action
for posting comments as claude[bot] instead of github-actions[bot].
Changes:
- Add github_token output to action.yml
- Export token from prepare.ts after authentication
- Allows workflows to use the same token Claude uses internally
Kashyap Murali