Build invoice recipient reputation display

[Kingsman-99]

Label: complexity: high
Points: 200

Description

Recipients' on-chain reputation scores are fetched but not visualised beyond a badge. This issue adds a reputation detail panel on the invoice detail page showing each recipient's full reputation history as a sparkline chart with total payments received and success rate.

Technical Context

Involves invoice/[id]/page.tsx and a new src/components/ReputationPanel.tsx. Call splitClient.getReputation(address) for each recipient. Fetch their past invoices to build a history array. Render sparkline using a simple SVG polyline. Show total received and success rate.

Acceptance Criteria

• Reputation panel expandable per recipient
• Sparkline shows reputation score over last 10 invoices
• Total USDC received shown
• Success rate (Released/total) shown as percentage
• "No history" shown for new addresses
• Mobile responsive — works on 375px screens
• No TypeScript errors

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[aji70]

@aji70 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I would love to work on this

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[daddygokings-art]

@daddygokings-art has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

please assign me this issue

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[MAN7A-afk]

@MAN7A-afk has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Please assign this issue to me

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[Teeeyanaa]

@Teeeyanaa has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i will like to work on this issues

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[drips-wave]

Congratulations, @Teeeyanaa! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Teeeyanaa: 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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