Implement subscription notification preferences and management

[Smartdevs17]

Context

Subscribers need granular notification preferences.

Current Limitation

Notifications are sent without preference management.

Expected Outcome

• Notification preference management
• Multi-channel notification delivery
• Notification history
• Notification analytics

Acceptance Criteria

• Notification preferences per type (email, push, SMS)
• Multi-channel delivery
• Notification history with read status
• Notification analytics (open rates, engagement)
• Notification scheduling
• Notification templates
• Notification documentation

Technical Scope

• backend/services/notification/ - Notification domain
• src/services/notificationService.ts - Notification service
• src/store/ - Notification preferences store
• src/screens/ - Notification settings UI

[Peaostrel]

@Peaostrel has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

i can handle this quickly

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Peaostrel to this issue.

[Yinklekay]

@Yinklekay has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would love to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Yinklekay to this issue.

[distributed-nerd]

@distributed-nerd has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

can i work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @distributed-nerd to this issue.

[drips-wave]

Congratulations, @distributed-nerd! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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