feat(console): 默认预设升级为两张(极光SVG + 海岸公路Sea01 1280px JPEG 181KB)；恢复初始按钮文案去括号；种子逻辑双图入库

02_process/tmp-convert.ps1

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+$ErrorActionPreference = 'Stop'
+Add-Type -AssemblyName System.Drawing
+$src = 'G:\01 Media\02 Video\20260423 意、西、葡\【无人机】\20260511-2西岸沿海公路（Praia da Arriba）\Sea01.jpg'
+$img = [System.Drawing.Image]::FromFile($src)
+$max = 1280
+$scale = [Math]::Min(1.0, $max / [Math]::Max($img.Width, $img.Height))
+$w = [int][Math]::Max(1, [Math]::Round($img.Width * $scale))
+$h = [int][Math]::Max(1, [Math]::Round($img.Height * $scale))
+$bmp = New-Object System.Drawing.Bitmap($w, $h)
+$g = [System.Drawing.Graphics]::FromImage($bmp)
+$g.InterpolationMode = 'HighQualityBicubic'
+$g.DrawImage($img, 0, 0, $w, $h)
+$enc = [System.Drawing.Imaging.ImageCodecInfo]::GetImageEncoders() | Where-Object MimeType -eq 'image/jpeg'
+$ep = New-Object System.Drawing.Imaging.EncoderParameters(1)
+$ep.Param[0] = New-Object System.Drawing.Imaging.EncoderParameter([System.Drawing.Imaging.Encoder]::Quality, [long]82)
+$out = 'C:\Users\SJL\AppData\Local\Temp\wave-bg.jpg'
+$bmp.Save($out, $enc, $ep)
+$g.Dispose(); $bmp.Dispose(); $img.Dispose()
+$f = Get-Item $out
+'{0}x{1} -> {2:N0} KB' -f $w, $h, ($f.Length/1KB)