Implement Notification & Alert System Module

[akargi]

Description

Create a comprehensive notification and alert system module that delivers real-time notifications to users about trades, blockchain events, and system status.

Direction

This module should provide:

• Multi-channel notification delivery (WebSocket, Email, SMS)
• Event-driven notification triggering
• User notification preferences management
• Notification history and audit trail
• Delivery reliability and retry logic
• Template management for notifications
• Notification aggregation and batching

Acceptance Criteria

• Notifications delivered via WebSocket within 2 seconds
• Email notifications sent within 5 minutes
• User notification preferences are respected
• Failed notifications are retried with exponential backoff
• Notification history is searchable and queryable
• Notification templates support customization
• Delivery status is tracked and reported
• System handles high notification volume without degradation
• Integration tests validate all notification channels
• Performance testing confirms <100ms processing per notification

[m-hajjo]

I have read the requirements of this issue and i am confident that i can solve this

[grantfox-oss]

🦊 GrantFox — @m-hajjo has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #4)
2. Your PR will be reviewed by the Chulilee maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@m-hajjo's PR #21 was approved and merged by @akargi.

🏆 @m-hajjo: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (118 total points). Track your full progress on GrantFox.

👏 Great work, @m-hajjo! Keep contributing to Chulilee.