Use atomic increment for quota counters instead of read-modify-write

[RUKAYAT-CODER]

Background

Quota counters updated via read-modify-write add round-trips and contention.

Implementation Plan

• Use atomic DB/Redis increments\n- Removes an extra read per enforcement
• Add benchmarks/metrics capturing before/after impact
• Add regression tests where applicable
• Document the change

Acceptance Criteria

• Measurable performance/efficiency improvement demonstrated with before/after numbers
• No regression in existing functionality
• Tests pass and code follows project standards
• Change is documented

[limxiy]

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

Can I please work on this isssue?

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

[drips-wave]

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

🧑‍💻 @limxiy: 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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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@limxiy's PR #2101 was approved and merged by @RUKAYAT-CODER.

🏆 @limxiy: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (662 total points). Track your full progress on GrantFox.

👏 Great work, @limxiy! Keep contributing to EarnQuestOne.

[drips-wave]

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

😎 @limxiy: 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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