Public menu page now shows a TR|EN|... pill selector (styled after the
Menulio design reference) that switches category/item text to the AI
translations added via the mobile app, falling back to Turkish for
anything not yet translated.
Also adds a migration for restaurants.cover_url, which was referenced by
existing code but was missing from the live database — the public menu
page was silently forcing cover photos to null on every restaurant.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
