Restore fork-specific features lost during upstream sync:
- README.md: Restore WaboSign branding and content (was overwritten by upstream)
- Routes: Restore account_logo, omniauth_callbacks, send_sms, sms test_message, sso create actions
- Account model: Restore LOGO constants and logo attachment
- User model: Restore EDITOR_ROLE, VIEWER_ROLE, editor?, viewer?, from_google_omniauth, signed_in_via_sso?, default_sso_account
- Ability model: Restore role-based permissions (admin, editor, viewer)
- SMS controller: Restore create and test_message actions
- SSO controller: Restore create action and fix config key
- Brakeman fix: Escape JSON in mcp_settings to fix XSS warning
Wabo