0.12.29

What's Changed

Fixed

• use() now throws a clear, actionable error when a trait is undefined/invalid instead of crashing with the cryptic Cannot read properties of undefined (reading 'id'). The message names the likely cause (a circular import where a trait module hadn't finished initializing) so the failure is diagnosable at a glance.

Full Changelog: 0.12.26...0.12.29