chore: 版本信息和更新日志

public/changelogs.json

@@ -1,4 +1,12 @@
 [
+  {
+    "version": "0.40.0",
+    "date": "2026-04-10",
+    "changes": {
+      "fixes": [{ "content": "修复设备树搜索时节点错乱的问题" }, { "content": "将安防箱面板的“电路”统一更正为“空开”" }, { "content": "修复设备查询缓存键冲突问题" }],
+      "feats": [{ "content": "添加视频服务器双机热备状态" }]
+    }
+  },
   {
     "version": "0.39.0",
     "date": "2026-03-02",

public/manifest.json

@@ -1,4 +1,4 @@
 {
-  "version": "0.39.0",
+  "version": "0.40.0",
-  "buildTime": "2026-03-11 14:35:45"
+  "buildTime": "2026-04-10 15:42:03"
 }