Use when adding localization to a Bevy 0.19 app with `es-fluent-manager-bevy`, defining typed messages with `#[derive(EsFluent)]`, wrapping UI text in `FluentText<T>`, auto-registering locale updates with `#[derive(BevyFluentText)]`, or reacting to locale switches via `LocaleChangeEvent`. Covers `I18nPlugin`, `RequestedLanguageId`, `i18n.toml` config, and hot-reload of `.ftl` assets.
