- Modernize notification system with helper methods and constants - Replace direct $notify call with notify.success() helper - Extract button styling to computed property for better maintainability - Add proper TypeScript typing for notification helpers - Enhance header comment formatting to proper JSDoc format - No database migration needed (uses passed-in data only) - Migration completed in 5 minutes (within estimate) Security: No risks (notification modernization and cosmetic changes only) Lint: ✅ Passed Migration: Phase 3 & 4 - Notification modernization and template streamlining