Replace prompt()/alert() in handleTopUp with proper TopUpModal

[ogazboiz]

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Description

handleTopUp in both Dashboard.tsx and dashboard-view.tsx still uses a native prompt() dialog and alert() instead of calling sorobanTopUp. The TopUpModal component exists and sorobanTopUp is already imported — this TODO has been open across three releases.

What Needs to Happen

• Remove prompt() and alert() from handleTopUp in both files
• Open the existing TopUpModal with the selected stream ID
• On modal confirm: validate amount precision, call sorobanTopUp(session, { streamId, amount }) via Freighter
• Show TransactionTracker states (signing → submitted → confirmed)
• On success: refresh stream card balance, close modal

Files

• frontend/src/components/Dashboard.tsx (line 64)
• frontend/src/components/dashboard/dashboard-view.tsx (line 466)
• frontend/src/components/stream-creation/TopUpModal.tsx

Acceptance Criteria

• No prompt() or alert() anywhere in the top-up flow
• Real Soroban transaction submitted via Freighter
• Stream balance updates after successful top-up

[kingfavourjudah]

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

can I work on this?

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[davedumto]

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

i would like to work on this issue

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[SpacePanda7077]

@SpacePanda7077 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hey, I've successfully completed similar task assign to me let me deliver quickly and smoothly in respect with your time frame

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[Marvell69]

@Marvell69 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

hello,i'd like work on this issue

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Congratulations, @Marvell69! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

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

🧑‍💻 @davedumto: 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 🌊