feat: 增加订阅主题备注功能

app/src/main/mqtt-manager.js

@@ -82,6 +82,7 @@ class MqttManager {
             s.topics = (s.topics || []).map((t) => ({
               ...t,
               id: t.id || 'topic_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6),
+              comment: t.comment ?? '',
               subscribed: false,
             }));
             this.servers.set(s.id, s);
@@ -154,8 +155,8 @@ class MqttManager {
         reconnectInterval: 5000,
         status: 'disconnected',
         topics: [
-          { id: 'topic_default_001', topic: 'sensor/+/temperature', qos: 1, subscribed: false },
-          { id: 'topic_default_002', topic: 'device/status', qos: 2, subscribed: false },
+          { id: 'topic_default_001', topic: 'sensor/+/temperature', qos: 1, comment: '', subscribed: false },
+          { id: 'topic_default_002', topic: 'device/status', qos: 2, comment: '', subscribed: false },
         ],
       },
     ];
@@ -272,6 +273,7 @@ class MqttManager {
       id: t.id || 'topic_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6),
       topic: t.topic,
       qos: t.qos ?? 1,
+      comment: t.comment ?? '',
       subscribed: false,
     };
   }
@@ -361,6 +363,7 @@ class MqttManager {
       id: t.id,
       topic: t.topic,
       qos: t.qos,
+      comment: t.comment ?? '',
     };
   }
 
@@ -575,9 +578,10 @@ class MqttManager {
    * @param {string} serverId - 服务器 id
    * @param {string} topic - 主题名称
    * @param {MqttQoS} qos - QoS 等级
+   * @param {string} comment - 主题备注
    * @returns {MqttTopic | null} 添加后的主题对象或 null
    */
-  addTopic(serverId, topic, qos = 1) {
+  addTopic(serverId, topic, qos = 1, comment = '') {
     let server = this.servers.get(serverId);
     if (!server) {
       return null;
@@ -588,7 +592,7 @@ class MqttManager {
 
     let topicId = 'topic_' + Date.now() + '_' + Math.random().toString(36).slice(2, 6);
 
-    let newTopic = { id: topicId, topic, qos, subscribed: false };
+    let newTopic = { id: topicId, topic, qos, comment, subscribed: false };
     server.topics.push(newTopic);
 
     this.saveData();
@@ -686,9 +690,10 @@ class MqttManager {
    * @param {string} topicId - 主题 id
    * @param {string} newTopic - 新的主题名称
    * @param {number} newQos - 新的 QoS 等级
+   * @param {string} comment - 新的主题备注
    * @returns {boolean} 是否更新成功
    */
-  updateTopic(serverId, topicId, newTopic, newQos) {
+  updateTopic(serverId, topicId, newTopic, newQos, comment = '') {
 
     let server = this.servers.get(serverId);
 
@@ -721,6 +726,7 @@ class MqttManager {
 
     t.topic = newTopic;
     t.qos = newQos;
+    t.comment = comment;
 
     // 如果已连接且此前已订阅，重新订阅新主题
     if (server.status === 'connected' && wasSubscribed) {
@@ -733,6 +739,7 @@ class MqttManager {
       topic: newTopic,
       subscribed: t.subscribed,
       topicId,
+      comment: t.comment,
     });
 
     return true;