Show bracket gross total price on bracket filter view

Sums gross_price estimates for all bracket jobs with known STL volume
and displays it as a badge next to the bracket name.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/templates/jobs.html

@@ -26,6 +26,11 @@
   <span class="badge bg-secondary fs-6 fw-normal px-3 py-2">
     <i class="bi bi-collection me-1"></i>{{ active_bracket.name }}
   </span>
+  {% if bracket_gross_total is not none %}
+  <span class="badge bg-dark border border-secondary fs-6 fw-normal px-3 py-2 text-white">
+    <i class="bi bi-currency-euro me-1 text-secondary"></i>{{ "%.2f"|format(bracket_gross_total) }} <span class="text-secondary fw-normal" style="font-size:.75em">gross total</span>
+  </span>
+  {% endif %}
   <a href="/jobs{% if q %}?q={{ q }}{% endif %}" class="text-secondary text-decoration-none small">× clear filter</a>
 </div>
 {% elif q %}