用户信息显示优化

admin/dashboard/templates/index.html

@@ -59,6 +59,16 @@
                 </div>
             </el-card>
         </el-col>
+        <el-col :span="4">
+            <el-card shadow="hover" class="stats-card">
+                <div slot="header">
+                    <span>系统运行时间</span>
+                </div>
+                <div style="font-size: 24px; text-align: center;">
+                    {% raw %}{{ formattedUptime }}{% endraw %}
+                </div>
+            </el-card>
+        </el-col>
     </el-row>
         
     <!-- 添加热门用户、群组和插件 -->