fix(templates): use root_path for static assets instead of url_for

url_for generates absolute URLs with internal host (localhost:5003)
which browsers block via ERR_BLOCKED_BY_ORB. Using root_path prefix
generates correct relative paths (/gomag/static/...).

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

api/app/templates/dashboard.html

@@ -185,5 +185,5 @@
 {% endblock %}
 
 {% block scripts %}
-<script src="{{ request.url_for('static', path='js/dashboard.js') }}?v=9"></script>
+<script src="{{ request.scope.get('root_path', '') }}/static/js/dashboard.js?v=9"></script>
 {% endblock %}