fix(packaging): verify bundled startup dependencies

scripts/build_exe.ps1

@@ -61,6 +61,29 @@ function Assert-NoExcludedData {
     }
 }
 
+function Assert-PackagedStartup {
+    param(
+        [string]$ExePath,
+        [int]$TimeoutSeconds = 30
+    )
+
+    $process = Start-Process `
+        -FilePath $ExePath `
+        -ArgumentList @("--startup-smoke-test") `
+        -PassThru `
+        -WindowStyle Hidden
+    if (-not $process.WaitForExit($TimeoutSeconds * 1000)) {
+        if (-not $process.HasExited) {
+            Stop-Process -Id $process.Id -Force
+        }
+        throw "打包程序启动自检超时（${TimeoutSeconds}秒）: $ExePath"
+    }
+    $process.Refresh()
+    if ($process.ExitCode -ne 0) {
+        throw "打包程序启动自检失败，退出码: $($process.ExitCode)"
+    }
+}
+
 function Compress-ArchiveWithRetry {
     param(
         [string]$SourcePath,
@@ -160,6 +183,8 @@ if (-not (Test-Path -LiteralPath $internalDir)) {
     throw "Build output missing _internal directory. Expected PyInstaller 6.x onedir layout (cmshopee.exe + _internal). Ensure PyInstaller >= 6.0 is installed: py -3.10 -m pip install -r requirements-build.txt"
 }
 Write-Host "Verified onedir layout: _internal present"
+Assert-PackagedStartup -ExePath $exePath -TimeoutSeconds 30
+Write-Host "Verified packaged startup smoke test"
 
 $releaseRoot = Join-Path $repoRoot "release"
 $releaseName = "$appName$appVersion"