{% comment %}
Page header: a title, optional description, and an actions slot. Used inside the
shell's {% block page_header %}. loading=True swaps the title/description for a
skeleton (STA-004), never a spinner.

Required context: title. Optional: description, loading. The actions slot is
filled by the caller wrapping this include, or via the shell's page_actions block.
{% endcomment %}
<header class="bw-page-header">
  {% if loading %}
    <div class="bw-skeleton bw-skeleton--title" aria-hidden="true"></div>
    <div class="bw-skeleton bw-skeleton--text" aria-hidden="true"></div>
  {% else %}
    <div class="bw-page-header__titles">
      <h1 class="bw-page-header__title">{{ title }}</h1>
      {% if description %}<p class="bw-page-header__description">{{ description }}</p>{% endif %}
    </div>
  {% endif %}
</header>