[Backend] -- Implement Referral Campaign Analytics

[Devsol-01]

Description:
Add comprehensive analytics for referral campaigns including conversion rates, revenue attribution, and ROI metrics.

Acceptance Criteria:

• Create referral analytics service
• Track conversion funnel metrics
• Implement revenue attribution
• Add campaign performance dashboard
• Create referral leaderboards
• Export referral reports

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[RaymondAbiola]

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

Hi, I’d like to work on this issue. I have experience with Rust, Solidity, frontend, and backend development, and I’m confident I can deliver a clean solution.

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

[Sam-Rytech]

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

Hi maintainer

I'd like to work on this issue

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

[chiemezie1]

@chiemezie1 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hi,
I would like to work on this issue and deliver a clean, tested solution that meets the acceptance criteria.
Please assign me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @chiemezie1 to this issue.

[dijangh904]

@dijangh904 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i would love to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @dijangh904 to this issue.

[drips-wave]

Congratulations, @dijangh904! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @dijangh904: 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 🌊

[drips-wave]

This issue has been removed from the Stellar Wave Program by the repository maintainers.

@dijangh904, you have been unassigned from this issue. If you have any questions, please reach out to the repo maintainers.