Fix broken macOS code signature and add real README Tauri only ad-hoc-signed the raw executable, not the full .app bundle, so Gatekeeper rejected it as "damaged" (no resource seal) regardless of notarization status. Setting bundle.macOS.signingIdentity fixes this at the config level so every future build is properly sealed. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>