127a36dd5f
When bd cook encounters a circular extends chain (A extends B extends A), the error message now shows the full chain: "cycle-a -> cycle-b -> cycle-a" instead of just "circular extends detected: cycle-a". This makes debugging circular dependencies much easier by showing exactly which formulas are involved in the cycle. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>