Localization

The Razor host is the single user interface. Its localization is split by purpose:

• src/AbioticEditor.Web/Localization/AppResources.resx contains the neutral English editor catalog.
• AppResources.de.resx, AppResources.es.resx, AppResources.fr.resx, and AppResources.ru.resx contain shipped translations.
• HostLanguageService provides host-specific navigation and formatting strings and resolves the RESX catalog.
• Plugins may contribute strings through PluginLocalizations; plugin values override bundled values for the requested culture.

Add a user-facing editor string to the neutral RESX file first, add the same key to every shipped locale, then render it with HostLanguageService.Resource. Host-only strings use Text, Detail, or Inventory according to their existing catalog.

Do not hard-code host prose in Razor components. Dynamic game-data labels, item rows, actor names, coordinates, and save values are not localization resources.

Run the localization coverage tests after changing any catalog:

dotnet test tests/AbioticEditor.Tests --filter FullyQualifiedName~HostLanguageServiceTests

Language selection is persisted locally. Missing plugin or locale-specific values fall back to the neutral English resource.