. Add `notification-bell.tsx` component

[DeFiVC]

What: Create a notification bell component that shows unread notification count and opens a notification panel.

Why: Users need to see notifications (reward claims, credential mints, system announcements). Currently there's no notification system in the UI.

Scope: Create src/components/shared/notification-bell.tsx with: bell icon, unread count badge, notification panel dropdown. Fetch notifications from API. Mark as read on click.

Acceptance criteria:

• Bell shows unread count
• Panel opens on click
• Notifications are listed with timestamps
• Clicking marks as read
• Panel closes on outside click

Technical context: src/components/layout/header.tsx — header. src/components/shared/ — shared components.

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[malaysiaonelove]

Hi maintainer, I’m interested in working on this issue. I have relevant experience and have reviewed the requirements. Please assign it to me—I’m confident I can deliver a high-quality solution.

[dollfins]

@dollfins has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer, i would love to fix this issue kindly assign it to me Thanks

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

[jajafwangshak86-ops]

@jajafwangshak86-ops has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

can I handle this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @jajafwangshak86-ops to this issue.

[drips-wave]

Congratulations, @jajafwangshak86-ops! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @jajafwangshak86-ops: 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.

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@jajafwangshak86-ops's PR #392 was approved and merged by @DeFiVC.

🏆 @jajafwangshak86-ops: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (847 total points). Track your full progress on GrantFox.

👏 Great work, @jajafwangshak86-ops! Keep contributing to ChainLearnOfficial.

[drips-wave]

This issue has been completed by @jajafwangshak86-ops as part of the Stellar Wave Program's 8th Wave 🥳

😎 @jajafwangshak86-ops: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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