fix(partner-ui): orange dot + fallback name for unknown ROA partner

- diff dot for partner_mismatch uses --warning (orange) instead of --error
  to distinguish from price mismatch (also red)
- modal ROA column shows "necunoscut - se va actualiza la urmatorul sync"
  when denumire_roa is null but partner_mismatch=1 (orders imported before
  the column existed)

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

api/app/templates/dashboard.html

@@ -114,5 +114,5 @@
 {% endblock %}
 
 {% block scripts %}
-<script src="{{ request.scope.get('root_path', '') }}/static/js/dashboard.js?v=44"></script>
+<script src="{{ request.scope.get('root_path', '') }}/static/js/dashboard.js?v=45"></script>
 {% endblock %}