Store name (required), description, WhatsApp number (optional — used to
hand off orders as a WhatsApp message; every order is recorded in the
dashboard either way), address, country, logo.
Store URL is shown but fixed — it can't be changed after creation.
Currency and Language (required dropdowns) — currency drives price
formatting store-wide, language sets the storefront's display language.
Social links — Instagram, Facebook, YouTube, Telegram, TikTok, plus
any number of custom "Other links" (label + URL, individually removable).