{# Shared investigation body — included by the standalone page
   (investigation.html) and the in-app overlay (_investigation_overlay.html).
   Needs: found (bool), body (markdown str), bug_id (int). #}
{% if found %}
<article class="investigation-body md-body">{{ body | render_markdown }}</article>
{% else %}
<div class="investigation-missing">
  <h2>No investigation yet</h2>
  <p>There's no investigation on file for bug {{ bug_id }}. Run
     <code>/bug-start {{ bug_id }}</code> to create one — it'll appear here.</p>
</div>
{% endif %}