The one key per device rule is meant to be lifted later. SQLite cannot drop
a column with an inline UNIQUE, or its automatic index, so lifting it would
have meant rebuilding the table. As a named index it is a DROP INDEX and a
DROP COLUMN.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Rvc3HbiWBTqbAvRT45G5oX