fix: run Windows desktop build on Ubuntu to avoid permission issues

- Windows builds now run on ubuntu-latest to avoid symbolic link permission errors
- Added additional code signing bypass options in package.json
- This resolves electron-builder failing due to Windows permissions when extracting signing tools

Author: rui-typelets

.github/workflows/desktop-build.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - os: windows-latest
+          - os: ubuntu-latest
             platform: win
             artifact: exe
           - os: macos-latest

apps/desktop/package.json

@@ -46,7 +46,9 @@
           ]
         }
       ],
-      "icon": "assets/icon.ico"
+      "icon": "assets/icon.ico",
+      "sign": null,
+      "verifyUpdateCodeSignature": false
     },
     "mac": {
       "target": [
@@ -76,7 +78,10 @@
     "nsis": {
       "oneClick": false,
       "allowToChangeInstallationDirectory": true
-    }
+    },
+    "forceCodeSigning": false,
+    "afterSign": null,
+    "afterAllArtifactBuild": null
   },
   "devDependencies": {
     "@types/node": "^24.5.2",