Add pandas dependency, enhance inventory summary visualization, and update table rendering

templates/index.html

@@ -32,6 +32,20 @@
             </div>
         </div>
         {% endif %}
+        <div class="col">
+            <div class="card">
+                <div class="card-body">
+                    <h5 class="card-title">Summary</h5>
+                    <div id="summary"></div>
+                </div>
+            </div>
+        </div>
     </div>
 </div>
-{% endblock %}
+{% endblock %}
+
+{% block script %}
+    const data = {{ datasets|tojson }};
+    const layout = { title: 'Summary' };
+    Plotly.newPlot('summary', data, layout)
+{% endblock %}