Add a tag-triggered workflow that builds the Electron desktop app (with the
bundled Go daemon) on macOS, Windows, and Linux runners and attaches the
unsigned artifacts to a GitHub prerelease for end-to-end pipeline validation.
Signing/notarization is intentionally off until the certs and secrets exist,
so these builds are for validating packaging, not distribution.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Harshit Singh Bhandari