rom-rb/rom-factory

AI Summary: The task is to fix a bug in the `rom-factory` gem where overriding the relation's `create` command with a custom command (specifically `ROM::SQL::Commands::Create`) causes factories to crash. The issue stems from a mismatch in the return value of the default and overridden `create` commands. The solution involves either modifying `rom-factory` to handle the differing return types or adjusting the custom command to match the default's interface.