feat: Admin dispute resolution — replace window.prompt() with a proper modal

[dotunv]

Description

AdminDashboard.jsx uses window.prompt() to collect dispute resolution notes from admins. This is a native browser dialog with no styling, no validation, no character limit, and no ability to paste rich text. It breaks the UI experience and looks unprofessional.

Proposed Solution

Replace window.prompt() with a dedicated DisputeResolveModal component that includes:

• A textarea for the resolution note (required, min 20 chars)
• A resolution outcome dropdown (resolved_for_creator, resolved_for_contributor, dismissed)
• A preview of the dispute details (campaign, reason, evidence)
• Confirm / Cancel buttons

Acceptance Criteria

• Resolution note is collected via an in-app modal, not window.prompt()
• Resolution outcome must be explicitly selected
• Note is required (minimum 20 characters)
• Modal shows the dispute context before admin submits
• Both parties (creator and contributor) receive an email notification on resolution

[Komelove]

@Komelove has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

https://www.facebook.com/share/r/18v4NLcGJw/

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

[drips-wave]

Congratulations, @Komelove! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @Komelove: 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 🌊