新增：Windows 图标源文件 + PNG→ICO 转换脚本

build/windows/convert-ico.ps1

@@ -0,0 +1,44 @@
+Add-Type -AssemblyName System.Drawing
+
+$srcPath = "E:\wk-lab\u-desk\build\windows\app-icon.png"
+$icoPath = "E:\wk-lab\u-desk\build\windows\icon.ico"
+$sizes = @(256, 128, 64, 48, 32, 16)
+
+$src = [System.Drawing.Image]::FromFile($srcPath)
+$fs = New-Object System.IO.FileStream($icoPath, [System.IO.FileMode]::Create)
+$w = New-Object System.IO.BinaryWriter($fs)
+
+$w.Write([uint16]0)
+$w.Write([uint16]1)
+$w.Write([uint16]$sizes.Count)
+
+foreach ($sz in $sizes) {
+    $bmp = New-Object System.Drawing.Bitmap($sz, $sz, [System.Drawing.Imaging.PixelFormat]::Format32bppArgb)
+    $g = [System.Drawing.Graphics]::FromImage($bmp)
+    $g.SmoothingMode = [System.Drawing.Drawing2D.SmoothingMode]::HighQuality
+    $g.InterpolationMode = [System.Drawing.Drawing2D.InterpolationMode]::HighQualityBicubic
+    $g.DrawImage($src, 0, 0, $sz, $sz)
+    $g.Dispose()
+
+    $ms = New-Object System.IO.MemoryStream
+    $bmp.Save($ms, [System.Drawing.Imaging.ImageFormat]::Png)
+    $bytes = $ms.ToArray()
+    $ms.Dispose()
+    $bmp.Dispose()
+
+    $w.Write([uint32]40)
+    $w.Write([int32]$sz)
+    $w.Write([int32]$sz)
+    $w.Write([uint16]1)
+    $w.Write([uint32]32)
+    $w.Write([uint32]$bytes.Length)
+    $w.Write([uint32]22)
+    $w.Write($bytes)
+}
+
+$w.Close()
+$fs.Close()
+$src.Dispose()
+
+$item = Get-Item $icoPath
+Write-Output "ICO: $($item.Name) ($([math]::Round($item.Length / 1KB)) KB)"