Implement Admin Dashboard API Endpoints

[KuchiMercy]

Complexity: High (200 points)

Description

Add administrative endpoints for platform oversight including user management, escrow overview, and system statistics.

Requirements and Context

README mentions "Admin Monitoring: Centralized tools for oversight and analytics"
No admin role or admin-specific endpoints exist
Platform operators need oversight of all escrows, not just their own
Required for dispute arbitration and compliance

Suggested Execution

Fork repo, create branch feat/admin-api
Add role field to User entity with enum: USER, ADMIN, SUPER_ADMIN
Create AdminGuard that checks user role
Create AdminModule with:
AdminController with admin-only endpoints
AdminService for admin operations
Implement endpoints:
GET /admin/escrows - list all escrows with advanced filters
GET /admin/users - list all users
GET /admin/stats - platform statistics (counts, volumes)
POST /admin/users/:id/suspend - suspend user
Add admin seed script for development

Test and Commit

Test admin guard rejects non-admin users
Test all admin endpoints with mock admin user
Verify regular users cannot access admin routes
Include example statistics response

Example Commit Message

feat: implement admin dashboard API endpoints

Add role-based admin system with endpoints for platform oversight
including user management, escrow listing, and system statistics.

Guidelines

Never expose admin endpoints to regular users
Log all admin actions for audit
Statistics should be cacheable (add cache headers)
Consider pagination for user/escrow lists

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[Mackenzie-OO7]

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Hi! I would like to work on this issue. I’m a full stack blockchain developer with over 5 years of experience, an active contributor to Stellar for 2+ years and have built multiple projects on Stellar as well. I believe I’ll be able to handle this efficiently.

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[RUKAYAT-CODER]

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[Xhristin3]

@Xhristin3 has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hello can I work on this please..

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Congratulations, @Xhristin3! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

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This issue has been completed by @Xhristin3 as part of the Stellar Wave Program's 2nd Wave 🥳

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