[BE-36] Add admin user management endpoints

[mftee]

Overview

Add admin-only endpoints for listing, suspending, and managing user roles inside backend/cmmty/.

Acceptance Criteria

• Create backend/cmmty/admin-users/ with module, controller, and service
• Implement GET /cmmty/admin/users — paginated user list with email search
• Implement GET /cmmty/admin/users/:id — single user details
• Implement PATCH /cmmty/admin/users/:id/suspend and unsuspend
• Implement PATCH /cmmty/admin/users/:id/role — change role (ADMIN only)
• Write unit tests for role guard and suspension logic

Contribution Folder

All files must be placed inside backend/cmmty/. Do not modify any file outside this folder.

How to Contribute

Comment on this issue to express interest, fork the repo, build inside backend/cmmty/ only, and open a PR targeting main.

[Hallab7]

@Hallab7 has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

I would like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Hallab7 to this issue.

[DevSolex]

@DevSolex has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi Maintainer,

I’m a smart contract and full-stack developer and would love to contribute to this issue. I’m an experienced contributor with hands-on expertise in Rust, Soroban, Cairo, and TypeScript.

I’m passionate about building secure, scalable blockchain solutions, with a strong emphasis on writing clean and maintainable code. Based on the scope of this issue, I’m confident I can deliver a complete solution within 24 hours of assignment.

I’d greatly appreciate the opportunity to contribute and help move this forward.

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

[Clement-coder]

@Clement-coder has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi, I’m a full-stack software engineer with strong experience in backend APIs and role-based access control.

I’ll implement the admin user module inside backend/cmmty with secure endpoints for listing, role management, and suspension, including proper guards and pagination.

Clean, tested, and aligned with project structure.

I can start immediately and deliver quickly.

Would love to be assigned.

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

[feyishola]

@feyishola has applied to work on this issue as part of the Stellar Wave Program's 4th wave.

Hi, im Feyishola, a software developer with over 4 years of experience. Please i would like to handle this issue

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

[drips-wave]

Congratulations, @feyishola! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on April 29, 2026.

🧑‍💻 @feyishola: 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

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🌊 Happy Wave 🌊

[drips-wave]

This issue has been completed by @feyishola as part of the Stellar Wave Program's 4th Wave 🥳

😎 @feyishola: 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.

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