fix: use .exe.sig for tauri v2 updater format

.github/workflows/release.yml

@@ -88,12 +88,11 @@ jobs:
           Get-ChildItem "$env:GITHUB_WORKSPACE\src-tauri\target\release\bundle" -Recurse | ForEach-Object { Write-Host $_.FullName }
 
           $all       = Get-ChildItem $nsisDir
+          # Tauri v2: 更新包是 .exe + .exe.sig（不再是 .nsis.zip）
           $installer = $all | Where-Object { $_.Name.EndsWith('-setup.exe') } | Select-Object -First 1
-          $updateZip = $all | Where-Object { $_.Name.EndsWith('.nsis.zip') -and -not $_.Name.EndsWith('.nsis.zip.sig') } | Select-Object -First 1
-          $sigFile   = $all | Where-Object { $_.Name.EndsWith('.nsis.zip.sig') } | Select-Object -First 1
+          $sigFile   = $all | Where-Object { $_.Name.EndsWith('-setup.exe.sig') } | Select-Object -First 1
 
           Write-Host "installer : $($installer?.FullName)"
-          Write-Host "updateZip : $($updateZip?.FullName)"
           Write-Host "sigFile   : $($sigFile?.FullName)"
 
           if (-not $installer) { Write-Error "installer not found!"; exit 1 }
@@ -105,11 +104,10 @@ jobs:
 
           & $oss cp $installer.FullName "$bucket/releases/$tag/$($installer.Name)" -f
 
-          if ($updateZip -and $sigFile) {
-            & $oss cp $updateZip.FullName "$bucket/releases/$tag/$($updateZip.Name)" -f
+          if ($sigFile) {
             & $oss cp $sigFile.FullName "$bucket/releases/$tag/$($sigFile.Name)" -f
 
-            # 生成 latest.json
+            # 生成 latest.json（Tauri v2 格式：url 指向 .exe，signature 来自 .exe.sig）
             $date    = (Get-Date -Format 'yyyy-MM-ddTHH:mm:ssZ')
             $baseUrl = "https://$env:OSS_BUCKET.$env:OSS_ENDPOINT/releases/$tag"
             $sig     = (Get-Content $sigFile.FullName -Raw).Trim()
@@ -121,7 +119,7 @@ jobs:
               platforms = [ordered]@{
                 'windows-x86_64' = [ordered]@{
                   signature = $sig
-                  url       = "$baseUrl/$($updateZip.Name)"
+                  url       = "$baseUrl/$($installer.Name)"
                 }
               }
             } | ConvertTo-Json -Depth 5
@@ -133,6 +131,5 @@ jobs:
             & $oss cp latest.json "$bucket/latest.json" -f
             Write-Host "latest.json uploaded"
           } else {
-            Write-Warning "update bundle (.nsis.zip) not found — skipping updater upload"
-            Write-Warning "Check that TAURI_SIGNING_PRIVATE_KEY is correctly set"
+            Write-Warning "sigFile (.exe.sig) not found — skipping updater upload"
           }