Add Windows QA command launcher

Ariver

2026-06-30 5b5cba7030b7f4dd519868fe310bb4fce893bf91

 privatevoice.src/frontend/src/components/settings/LanguagePage.svelte

@@ -184,6 +184,9 @@
    if (option.unsupportedReason === 'requires_macos_14') {
      return t('models.qwen3RequiresMacOS14')
    }
    if (option.unsupportedReason === 'windows_preview_unsupported') {
      return t('models.windowsPreviewUnsupported')
    }
    return t('settings.modelUnavailable')
  }