[Backend] User Export Data API (GDPR Compliance)

[Olowodarey]

📋 Description

Implement data export functionality allowing users to download all their personal data in machine-readable format.

Acceptance Criteria

• POST /users/data/export to request data export
• Generate ZIP file with JSON files for all user data
• Include: profile, transactions, savings, goals, notifications, audit logs
• Email download link when ready (async processing)
• Expire download links after 7 days
• Log all export requests for compliance
• Support GDPR right to data portability

Tasks

• Create data export endpoint
• Implement async processing
• Generate ZIP files
• Add email notifications
• Implement link expiration
• Write tests

[BigMick03]

@BigMick03 has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Good morning, I will kike to work on this.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @BigMick03 to this issue.

[Haroldwonder]

@Haroldwonder has applied to work on this issue as part of the Stellar Wave Program's 3rd wave.

Hi. Can I work on this, please?

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

[drips-wave]

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

🧑‍💻 @Haroldwonder: 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 completed by @Haroldwonder as part of the Stellar Wave Program's 3rd Wave 🥳

😎 @Haroldwonder: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

🧑‍💻 Repo maintainers: How'd the contributor do? Leave a review to share your experience working with them.