feat: Rename to Toju and add translation

toju-app/AGENTS.md

@@ -39,6 +39,13 @@ This package is the Angular 21 renderer for the Toju/MetoYou product client.
 - Context menus and modal dialogs auto-render as bottom sheets on mobile. `ContextMenuComponent` and `ConfirmDialogComponent` (in `src/app/shared/components/`) inject `ViewportService` and switch their templates between the desktop popover/centered modal and `BottomSheetComponent` (`src/app/shared/components/bottom-sheet/`) on phone-sized viewports. New menus/dialogs should reuse these components rather than rolling their own `fixed inset-0` overlay. For one-off bespoke surfaces, render `<app-bottom-sheet>` directly when `isMobile()`.
 - Tap targets on interactive controls should be at least 44px on mobile. Use `min-h-11` (or explicit `h-11 w-11`) for icon buttons that are tap-only on mobile; desktop sizes can remain smaller via `md:` overrides.
 
+## i18n
+
+- User-visible UI strings use `@ngx-translate/core` (same stack as `website/`). Edit fragment catalogs in `public/i18n/catalog/*.json`, then run `npm run i18n:sync` from the repo root to regenerate `public/i18n/en.json`. Only `en` ships today.
+- Bootstrap and locale rules: `src/app/core/i18n/`. Import `APP_TRANSLATE_IMPORTS` in standalone components that use the `translate` pipe; use `AppI18nService.instant()` in TypeScript.
+- Vitest harnesses: `provideAppI18nForTests()` from `src/app/core/i18n/app-i18n.testing.ts`.
+- See `agents-docs/features/app-i18n.md` for the full contract.
+
 ## Templates
 
 - If you touch Angular HTML templates, run `npm run format`.