{# 🔭 관련 신호 wrapper. Outer section is omitted when no subsection has
   content so the heading never appears on its own. Subsections (pgvector
   similarity + signal alerts + track_history timeline) are independently
   omitted by their own partials when their lists are empty. #}
{% set has_similar = item.similar %}
{% set has_alerts = item.signal_alerts %}
{% set has_history = item.related_history %}
{% if has_similar or has_alerts or has_history %}
<section class="detail-signals">
  <h2 class="detail-section__title">🔭 관련 신호</h2>
  {% include "_detail_similarity.html" %}
  {% include "_detail_new_signals.html" %}
  {% include "_detail_history.html" %}
</section>
{% endif %}