Backend: dependency-free t(key, locale) helper (bober_bbq/utils/i18n.py) in
the spirit of Setting.get(), a new TelegramUser.locale column (migrated via
the existing _add_column_if_missing pattern) populated from Telegram's
language_code on first contact, and order-status notification messages
(notify_customer.py) plus the bot's /start welcome translated to en as proof.
Webapp: a ~30-line I18nProvider/useI18n context (webapp/src/i18n/) with a
per-locale translations dict, auto-detecting locale from a saved choice,
Telegram's language_code, or the browser, with a manual UA/EN switcher in
the header. CartPage and CheckoutPage are fully bilingual end-to-end as the
representative slice; the rest of the app is unchanged Ukrainian-only.
Documented in docs/I18N.md: how to add strings/languages, and the explicit
boundary of what's translated today vs. left for later (admin panel is
intentionally untouched).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
byrsapty
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