Closes #3. Closes #12.

Closes #3. Closes #12.
* Update README and MQTTClient for installation instructions and code improvements

* feat: 支持local_config启动
add: 增加对crt path的说明，为传入config.py的相对路径
move: web component

* add: registry description

* feat: node_info_update srv
fix: OTDeck cant create

* close #12
feat: slave node registry

* feat: show machine name
fix: host node registry not uploaded

* feat: add hplc registry

* feat: add hplc registry

* fix: hplc status typo

* fix: devices/

* fix: device.class possible null

* fix: HPLC additions with online service

* fix: slave mode spin not working

* fix: slave mode spin not working

* feat: 多ProtocolNode 允许子设备ID相同
feat: 上报发现的ActionClient
feat: Host重启动，通过discover机制要求slaveNode重新注册，实现信息及时上报

---------

Co-authored-by: Harvey Que <Q-Query@outlook.com>

unilabos/app/web/templates/status.html

@@ -96,17 +96,19 @@
             <tr>
                 <th>设备ID</th>
                 <th>命名空间</th>
+                <th>机器名称</th>
                 <th>状态</th>
             </tr>
             {% for device_id, device_info in host_node_info.devices.items() %}
             <tr>
                 <td>{{ device_id }}</td>
                 <td>{{ device_info.namespace }}</td>
+                <td>{{ device_info.machine_name }}</td>
                 <td><span class="status-badge online">{{ "在线" if device_info.is_online else "离线" }}</span></td>
             </tr>
             {% else %}
             <tr>
-                <td colspan="3" class="empty-state">没有发现已管理的设备</td>
+                <td colspan="4" class="empty-state">没有发现已管理的设备</td>
             </tr>
             {% endfor %}
         </table>
@@ -218,6 +220,7 @@
             <th>Device ID</th>
             <th>节点名称</th>
             <th>命名空间</th>
+            <th>机器名称</th>
             <th>状态项</th>
             <th>动作数</th>
         </tr>
@@ -227,6 +230,7 @@
             <td>{{ device_id }}</td>
             <td>{{ device_info.node_name }}</td>
             <td>{{ device_info.namespace }}</td>
+            <td>{{ device_info.machine_name|default("本地") }}</td>
             <td>{{ ros_node_info.device_topics.get(device_id, {})|length }}</td>
             <td>{{ ros_node_info.device_actions.get(device_id, {})|length }} <span class="toggle-indicator">▼</span></td>
         </tr>
@@ -329,8 +333,13 @@
         <tr id="device-info-{{ loop.index }}" class="detail-row" style="display: none;">
             <td colspan="5">
                 <div class="content-full">
-                    <pre>{{ device.class_json }}</pre>
-                    
+                    {% if device.class %}
+                        <pre>{{ device.class | tojson(indent=4) }}</pre>
+                    {% else %}
+                        <!-- 这里可以放占位内容，比如 -->
+                        <pre>// No data</pre>
+                    {% endif %}
+
                     {% if device.is_online %}
                     <div class="status-badge"><span class="online-status">在线</span></div>
                     {% endif %}
@@ -362,7 +371,12 @@
                                     <button class="copy-btn" onclick="copyToClipboard(this.previousElementSibling.textContent, event)">复制</button>
                                     <button class="debug-btn" onclick="toggleDebugInfo(this, event)">调试</button>
                                     <div class="debug-info" style="display:none;">
-                                        <pre>{{ action_info|tojson(indent=2) }}</pre>
+                                        {% if action_info %}
+                                            <pre>{{ action_info | tojson(indent=4) }}</pre>
+                                        {% else %}
+                                            <!-- 这里可以放占位内容，比如 -->
+                                            <pre>// No data</pre>
+                                        {% endif %}
                                     </div>
                                 </div>