- Subclass Devise::Mailer as DeviseMailer overriding subject_for to pass site_name option.
- Configure config.mailer = 'DeviseMailer' and config.mailer_sender in Devise initializer using GROWSTUFF_SITE_NAME env var.
- Update Devise locale subject strings in config/locales/devise.en.yml to use %{site_name}.
- Add spec/mailers/devise_mailer_spec.rb to verify subject interpolation.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Co-authored-by: Brenda Wallace <brenda@wallace.net.nz>
