.repo-manager/index.json is a rebuildable local cache written by rmgr, not
repository state. repo-manager gitignores its own; match that.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 2564823@bnt-lap001
Assistant-Session: 2a7ed827-4928-4b9f-8613-9135c9cadfe9
