Add analytics and revenue reporting dashboard

[Smartdevs17]

Description

Build a comprehensive analytics dashboard showing payment volumes, conversion funnels, merchant revenue, and transaction trends with interactive charts and data export.

Acceptance Criteria

• Revenue metrics (total volume, fees, net revenue) with time filters
• Transaction funnel visualization (initiated -> confirmed -> settled)
• Merchant performance comparison with percentile rankings
• Real-time dashboard with WebSocket updates
• CSV/PDF export of reports
• Scheduled report delivery via email

Technical Scope

• backend/src/services/analytics.ts
• backend/src/routes/analytics.ts
• frontend/app/dashboard/analytics/page.tsx
• frontend/lib/cache/analytics.ts
• Edge: large date range queries, cache invalidation, data consistency across shards

[jadonamite]

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

Hi maintainer can i work on this issue I have read your requirements and i am ready to jump on this and send out the fix for your review ASAP

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

[vjuliaife]

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

Hi, I would like to resolve this

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

[drips-wave]

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

🧑‍💻 @vjuliaife: 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.

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