BE-36: Webhook Replay Tooling (Safe Redelivery + Visibility)

[Cedarich]

Complexity: 150 points
Branch: feat/be-webhook-redelivery
Summary
Provide reliable tooling to replay webhook deliveries safely, improving developer experience during production rollouts.
Tasks

• Add API to replay a delivery by event id with rate limiting.
• Add visibility into retry schedule, last error, and DLQ reason.
• Implement safeguards to prevent replay storms (cooldowns + quotas).
• Add tests for idempotency and abuse protection.
  Acceptance Criteria
• Developers can replay a specific event deterministically.
• Replay is rate-limited and does not overload downstream receivers.
• Delivery history remains auditable and queryable.

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[Ivenkili]

@Ivenkili has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hey maintainer,
I would love on this issue kindly assign

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

[AbuJulaybeeb]

@AbuJulaybeeb has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

hi maintainer,
i would like to take on this issue

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[MztaKing]

@MztaKing has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

i can work on this issue

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

[drips-wave]

Congratulations, @MztaKing! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @MztaKing: 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.

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