Schema changes:
- Added dueDate field to companyReminders table
- Removed reminderDate and reminderSent from notes table
Backend changes:
- Updated company-reminder.service with dueDate handling
- Added getUpcomingReminders function for dashboard
- Simplified note.service (removed reminder logic)
- Updated validators and routes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
