- Made owner property optional in GitLabForkParentSchema
- Made forked_from_project property optional in GitLabForkSchema
- Improved error handling in fork_repository MCP handler
- Changed to s to use the correct plural form in API endpoints
- This fixes 404 errors when trying to add notes to issues or merge requests
- Added a test file to verify the fix
- Conforms to GitLab API documentation which uses plural resource names (issues, merge_requests)