export is idempotent — two consecutive calls return the same id, slug, name

Walk the CVL editor end-to-end: agent + human cooperation, bullet reorder across panes, edit latency, micro-interaction polish, full-list reorder, the header drag chip layout, and the export path. Catches Svelte hydration regressions and CRDT merge ordering bugs the unit tests cannot.

Realtime, mirror, export, and read-only browser proof. This lane validates collaboration-adjacent browser behaviour without leaving the self-hosted runner.