[skip ci] Update version to v1.5.20

version_history.json

@@ -1,4 +1,20 @@
 [
+  {
+    "version": "1.5.20",
+    "update_type": "patch",
+    "content": "[patch] 修改逻辑: 在用户误触或开了多个GUI程序的时候不能同时建立多个连接 确保一个账号只能建立一个与后端的连接 友好提示的集成review 修改powershell语法问题",
+    "author": "haosicheng",
+    "commit_hash": "5896b422f73104cb7b9dba00d19936736f584a4b",
+    "commit_short_hash": "5896b422",
+    "branch": "develop",
+    "release_time": "2025-10-13 13:40:48",
+    "download_url": "https://shuidrop-chat-server.ks3-cn-guangzhou.ksyuncs.com/installers/ShuiDi_AI_Assistant_Setup_v1.5.20.exe",
+    "stats": {
+      "files_changed": 1,
+      "lines_added": 171,
+      "lines_deleted": 171
+    }
+  },
   {
     "version": "1.5.13",
     "update_type": "patch",