refactor(db): Create AuditLogRepository

[zeemscript]

Description

Implement AuditLogRepository class that wraps all AuditLog model database operations. This repository should be read-only and append-only, supporting audit trail queries and compliance reporting.

Acceptance Criteria

• Create AuditLogRepository extending BaseRepository (read-only, append-only)
• Implement audit queries (findByUser, findByAction, findByDateRange)
• Remove or disable update/delete methods
• Include retention policy recommendations

Files to Create

• /mongo/repositories/AuditLogRepository.js

[fhave21]

@fhave21 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello maintainer, I'd be delighted to work on this. Please assign

ℹ️ Repo Maintainers: To accept this application, review their application or assign @fhave21 to this issue.

[ayushi-wq]

@ayushi-wq has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, I would like to work on this issue.

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

[mayborn005]

@mayborn005 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello @maintainer, I understand the expected outcome and would love to work on this. I'll provide a solution that satisfies the acceptance criteria.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @mayborn005 to this issue.

[drips-wave]

Congratulations, @heazyway! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @heazyway: 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 is assigned to @heazyway via the Stellar Wave Program.

Other assignees have been removed. To reassign, please unassign the current contributor through Drips Wave first.

[datboilondon]

@datboilondon has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

i would love for this issues to be assigned to me because it in my area of expertise

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