. Add `reward-history.tsx` improvements

[DeFiVC]

What: Improve the RewardHistory component with filtering, date range, and export functionality.

Why: The current RewardHistory shows a flat list. Users need to filter by date, course, or status, and export their reward history for tax purposes.

Scope: Add date range filter, course filter, status filter (claimed/pending/failed). Add export to CSV button. Add summary stats (total earned, total claimed, pending).

Acceptance criteria:

• Filters narrow the list
• Export downloads CSV file
• Summary shows totals
• Filters are combinable

Technical context: src/components/rewards/reward-history.tsx — existing RewardHistory. src/lib/hooks/use-rewards.ts — rewards hook.

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[bubah911]

@bubah911 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I’m interested in this issue and would be glad to contribute. I can get started right away.

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[graceanya796-maker]

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Hello
I would love to work on this issue please

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[Oluwasuyi-Oluwatimilehin-Daniel]

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

Hello @maintainer, I’d like to work on this issue. I have experience handling similar tasks and can start immediately. And I will deliver at the shortest possible time.

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[TheHalalHunter]

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

Hi maintainer
I’d love to help out with this issue. I’ve checked the current codebase/documentation and know exactly what needs to be updated to make this clearer. I will ensure everything aligns perfectly with your existing contribution guidelines.

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[codewithzubair07]

@codewithzubair07 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

i would like to work on this issue

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[Lekan101]

@Lekan101 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Can I handle this issue please

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[drips-wave]

Congratulations, @Lekan101! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @Lekan101: 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!

@Lekan101's PR #405 was approved and merged by @DeFiVC.

🏆 @Lekan101: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (306 total points). Track your full progress on GrantFox.

👏 Great work, @Lekan101! Keep contributing to ChainLearnOfficial.