An international phone field — country picker + national number input that writes a canonical E.164 value (e.g. "+15555550100") into a hidden input for phx-change/phx-submit.

<.phone field={@form[:phone]} label="Phone" />
<.phone field={@form[:phone]} country="GB" required />

Pairs with the Skua.Phone harness: validate with Skua.Phone.validate_phone(changeset, :phone, required: true). The country dataset is rendered alongside the field (no extra dependency, no bloat to the shared JS bundle), so the picker is fully self-contained in the SkuaPhone hook.