{#
  SETTINGS · System save-result banner (R4a). Swapped into #sys-save-result after
  POST /settings/system. Renders a success confirmation or an error notice.

  Context:
    saved        : truthy on a successful persist
    saved_count  : number of fields written (optional, success only)
    saved_error  : error string (when the save failed)
#}
{% if saved_error %}
<div class="set-banner sys-saved err" role="alert">
  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><circle cx="12" cy="12" r="9"/><path d="M12 8v4M12 16h.01"/></svg>
  <div><b>Couldn't save.</b> {{ saved_error }}</div>
</div>
{% elif saved %}
<div class="set-banner secure sys-saved ok" role="status">
  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><path d="M20 6 9 17l-5-5"/></svg>
  <div><b>Saved.</b> Settings written to the console app-DB{% if saved_count %} · {{ saved_count }} field{{ 's' if saved_count > 1 else '' }} applied{% endif %}.</div>
</div>
{% endif %}