The Windows preview build dies in WiX with 'optional pre-release identifier in app version must be numeric-only and cannot be greater than 65535 for msi target' because the stamp was BASE-preview.N. Drop the word: BASE-N is still a valid semver prerelease (sorts below the stable BASE for the updater channel), unique per run, and MSI-legal. Failed run: 27096586578 (Windows x64; macOS + Linux built fine but the publish job was skipped). Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>