207ca6893a
- Use SecAddSharedWebCredential to prompt 'Save Password?' on signup - Use ASAuthorizationPasswordProvider to restore credentials on login - Add webcredentials:ditto.pub Associated Domains entitlement - Deploy apple-app-site-association for domain validation - Keep existing Chromium PasswordCredential flow as web fallback - Add saveNsec() helper: native credential manager on iOS/Android, file download + bonus PasswordCredential on web - Single 'Continue' button triggers the appropriate save method per platform