{# Tabbed multi-source list — one tab per source entity, each lazy-loaded via HTMX #}
{# UX-035 adopter #4 (after grid, list, kanban). #}
{% from 'macros/region_wrapper.html' import region_card %}
{% set tabs = source_tabs if source_tabs is defined else (region.source_tabs if region is defined else []) %}
{% set rname = region_name if region_name is defined else (region.name if region is defined else "unknown") %}
{% set rtitle = title if title is defined else (region.title if region is defined else "") %}
{% set rempty = empty_message if empty_message is defined else (region.empty_message if region is defined else "No data available.") %}
{% call region_card(rtitle) %}
{# Tab headers #}
{% if tabs %}