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feat: List auto-keyed reconciliation via key= extractor - #6
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List is now a factory function (like Row/Column) returning a Column of items, so keyed children reconcile on the stable parent. key= extracts per-item identity and auto-keys stateful components, preserving their state across reorder/add/remove without manual .keyed() calls. Also: duplicate child keys under one owner now raise a clear error, and the keyed list item moves off the roadmap in README/AGENTS.
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List is now a factory function (like Row/Column) returning a Column of items, so keyed children reconcile on the stable parent. key= extracts per-item identity and auto-keys stateful components, preserving their state across reorder/add/remove without manual .keyed() calls.
Also: duplicate child keys under one owner now raise a clear error, and the keyed list item moves off the roadmap in README/AGENTS.