970299b1a4
- Added `last_reminder_mail_sent_at` field to track reminder timestamps. - Implemented `can_send_reminder` to check if a reminder can be sent based on a 30-minute cooldown. - Added `reminder_cooldown_remaining` to get remaining cooldown time. - Added `mark_reminder_sent` to update reminder timestamp. - Added example demonstrating reminder functionality in `legal_contract_example.rs`. - Added tests for reminder functionality in `test_reminder_functionality.rs`. - Updated Rhai scripts to include reminder-related functions and tests. - Improved formatting and clarity in example code.