- Create modular EmailTemplateRenderer with master shell and content separation
- Build reusable email components library (buttons, alerts, OTP boxes, etc.)
- Add EmailTemplatePreview component with master/content preview modes
- Implement test email functionality for each notification template
- Update NotifikasiTab to use new preview system with shortcode processing
- Add dummy shortcode data for testing (nama, email, order_id, etc.)
- Maintain design consistency between web and email
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Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
