EventFirmwareEditionDao

Deletes rows whose edition is not in keep. WARNING: NOT IN () is always true in SQLite, so an empty keep deletes every row — call sites must guard against passing an empty list (see EventFirmwareEditionLocalDataSource.deleteNotIn, which no-ops on empty).

Observes edition, re-emitting whenever the table changes. This is what lets a background manifest refresh reach already-visible event branding: a one-shot read resolves once when the connection is established, so metadata that lands afterwards would sit in the table unseen until the user reconnected.