[Notifications] Web Push notifications for merchant dashboard (PWA)

[Xaxxoo]

Overview

Push browser notifications to merchants using the Web Push API.

Tasks

• Integrate web-push package
• POST /api/v1/merchants/me/push-subscription — register device
• Push on payment.confirmed and payment.settled events
• Merchant can opt out via notification preferences

Acceptance Criteria

• Push received within 5 seconds of event
• Works on Chrome and Firefox
• Merchant can disable push per event type

[onahiOMOTI]

@onahiOMOTI has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

hi maintainer,
I'd like to work on this issue.

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

[drips-wave]

Congratulations, @onahiOMOTI! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @onahiOMOTI: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊