[Backend] Monitoring: Integrate Sentry Exception Tracking

[ONEONUORA]

Description

Add Sentry monitoring for runtime exception capture:

• Load Sentry DSN from environment configuration.
• Wire into the tracing system to capture all error-level tracing events automatically.

Acceptance Criteria

• Exceptions are caught and reported to Sentry dashboard.
• Includes context such as client IP, user ID, and stack traces.
• No performance penalty or main-thread block on report delivery.

[Delightech28]

@Delightech28 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I'd like to work on this

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Delightech28 to this issue.

[drips-wave]

Congratulations, @Delightech28! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @Delightech28: 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]

🦊 GrantFox — @Delightech28 has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #823)
2. Your PR will be reviewed by the Fracverse maintainers

Good luck! Track your progress on GrantFox.