feat(api): 添加安全上传 Skill 和 COS 图片归一化

scripts/package-upload-skill.ps1

@@ -0,0 +1,44 @@
+$ErrorActionPreference = 'Stop'
+
+$repositoryRoot = Split-Path -Parent $PSScriptRoot
+$skillName = 'upload-delivery-desk-work'
+$sourcePath = Join-Path $repositoryRoot ".agents\skills\$skillName"
+$packageDirectory = Join-Path $repositoryRoot 'skill-packages'
+$packagePath = Join-Path $packageDirectory "$skillName.zip"
+
+if (-not (Test-Path -LiteralPath (Join-Path $sourcePath 'SKILL.md'))) {
+  throw "Skill not found: $sourcePath"
+}
+
+$previousNoBytecode = $env:PYTHONDONTWRITEBYTECODE
+try {
+  $env:PYTHONDONTWRITEBYTECODE = '1'
+  python (Join-Path $repositoryRoot 'tests\test_upload_skill.py')
+  if ($LASTEXITCODE -ne 0) {
+    throw 'Upload Skill regression tests failed.'
+  }
+} finally {
+  $env:PYTHONDONTWRITEBYTECODE = $previousNoBytecode
+}
+
+$runtimeFiles = Get-ChildItem -LiteralPath $sourcePath -Recurse -Force | Where-Object {
+  $_.Name -eq '__pycache__' -or $_.Extension -in @('.pyc', '.pyo')
+}
+if ($runtimeFiles) {
+  throw 'Skill contains Python runtime cache. Remove it before packaging.'
+}
+
+New-Item -ItemType Directory -Force -Path $packageDirectory | Out-Null
+if (Test-Path -LiteralPath $packagePath) {
+  Remove-Item -LiteralPath $packagePath -Force
+}
+
+Add-Type -AssemblyName System.IO.Compression.FileSystem
+[System.IO.Compression.ZipFile]::CreateFromDirectory(
+  $sourcePath,
+  $packagePath,
+  [System.IO.Compression.CompressionLevel]::Optimal,
+  $true
+)
+
+Write-Output $packagePath