alonso.torres 11d7a630dc 🐛 Restore migration and test compatibility after rebase
Keep the container root helper used by the main-instance name migration.
Adapt imported-file ids and component swap tests to the current APIs, and
check copied swaps through their position refs and swap groups.

AI-assisted-by: gpt-6
2026-10-28 15:53:11 +01:00
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