Backend: Implement favorites API matching frontend contract

[aji70]

Task: Backend: Implement favorites API matching frontend contract

Overview

Frontend calls /favorites but backend has no module.

---

Goals

• Favorite entity + CRUD
• Auth required
• Tests

---

Deliverables

• Module + migration + tests

---

Acceptance Criteria

• Favorite/unfavorite works
• List only own
• 404 missing target

[CodedBay]

@CodedBay has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Dear maintainer,

I would love to take on this issue. I have solid experience working with smart contracts, state validation, and writing robust test suites, and frontensd and I am confident I can implement this cleanly and submit a clean, mergeable PR.

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

[Praisefotos1]

@Praisefotos1 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

HELLO MAINTAINER PLEASE I'D LOVE OT TAKE THIS ISSUES UP AND FIX IT WITHIN 24 HRS!
PLEASE ASSIGN IT TO ME

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Praisefotos1 to this issue.

[Emeka000]

@Emeka000 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

may I be assigned to this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Emeka000 to this issue.

[drips-wave]

Congratulations, @Emeka000! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @Emeka000: 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 🌊

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@Emeka000's PR #1540 was approved and merged by @aji70.

🏆 @Emeka000: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (802 total points). Track your full progress on GrantFox.

👏 Great work, @Emeka000! Keep contributing to MyFanss.

[drips-wave]

This issue has been completed by @Emeka000 as part of the Stellar Wave Program's 7th Wave 🥳

😎 @Emeka000: 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.