fix: Add missing endif for results_data.results block

Fixes TemplateSyntaxError: missing {% endif %} for {% if results_data.results %} block.

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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

generations/library_rag/templates/search.html

@@ -251,6 +251,7 @@
                 </div>
             {% endfor %}
             {% endif %}
+            {% endif %}
         {% else %}
             <div class="empty-state">
                 <div class="empty-state-icon">🔮</div>