chore(gui): 版本号 1.9.1 → 1.9.2

v1.9.2 收两处 UI 修复：
- 统计区间文案在日视图恒为空（bucket 是小时粒度，盲目拼 T00:00:00Z 使
  toISOString 抛 RangeError，整句赋值丢失），且天数按小时桶数误报
- per-key AUTO 链默认复制全局链作为编辑起点，而不是空白画布

Co-Authored-By: ModelRouter <noreply@modelrouter.dev>

cmd/gui/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "modelrouter-gui",
-  "version": "1.9.1",
+  "version": "1.9.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "modelrouter-gui",
-      "version": "1.9.1",
+      "version": "1.9.2",
       "license": "Proprietary",
       "devDependencies": {
         "electron": "^33.0.0",

cmd/gui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "modelrouter-gui",
-  "version": "1.9.1",
+  "version": "1.9.2",
   "description": "ModelRouter Desktop — embedded ModelRouter core with tray",
   "author": "ModelRouter",
   "main": "main.js",