- .github/workflows/ci.yml: add e2e + e2e-windows jobs with Resend secrets,
extend check-windows with build:binary + smoke tests
- docs/reference/platform-support.md: update CI testing table to match reality
- context/changes/e2e/plan.md: mark phase 5 automated steps complete
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add PowerShell Set-Clipboard to clipboard table, expand CI testing
section with unit+e2e matrix for both Ubuntu and Windows.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Switch Windows CI job to native PowerShell with Get-ChildItem for test
file enumeration (no glob expansion needed). Add platform-support
reference doc for learners.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>