fix(security): 脱敏启动脚本中的疑似真实QQ号默认值

- snowcat-launch.ps1: -Account 默认值与用法注释改为 <REDACTED>（对齐 release-tools 已脱敏版本）
- snowcat-launch-9937.ps1: 启动参数 -q<号码> 改为 -q<Account> 占位
- 说明: 一次性验证脚本与稳定线启动器不应把真实账号写死入库

snowcat-launch-9937.ps1

@@ -39,5 +39,5 @@ $env:NAPCAT_INJECT_PATH = Join-Path $NapcatDir 'NapCatWinBootHook.dll'
 $env:NAPCAT_MAIN_PATH = $mainJs
 Write-Host ("[OK] qqnt=" + $app.version + " build=" + $qqnt['buildVersion'])
 $logFile = Join-Path $NapcatDir ('snowcat-boot5-' + (Get-Date -Format 'HHmmss') + '.log')
-Start-Process -FilePath (Join-Path $NapcatDir 'NapCatWinBootMain.exe') -ArgumentList ('"' + $QQPath + '"', '"' + (Join-Path $NapcatDir 'NapCatWinBootHook.dll') + '"', '-q3430961870') -WindowStyle Hidden -RedirectStandardError $logFile
+Start-Process -FilePath (Join-Path $NapcatDir 'NapCatWinBootMain.exe') -ArgumentList ('"' + $QQPath + '"', '"' + (Join-Path $NapcatDir 'NapCatWinBootHook.dll') + '"', '-q<Account>') -WindowStyle Hidden -RedirectStandardError $logFile
 Write-Host 'launched'