Add integration test for webhook deletion removing the record and stopping future deliveries

[Chucks1093]

Summary

When a creator deletes a webhook via DELETE /creators/:id/webhooks/:webhook_id, the webhook must be removed from the database and no further deliveries should occur for that webhook ID even if a matching trade event arrives shortly after deletion.

Scope

• Register a webhook and confirm it exists
• Delete the webhook and assert the response is 204
• Simulate a trade event after deletion
• Assert no delivery attempt was made for the deleted webhook

Acceptance Criteria

• DELETE returns 204
• Webhook record no longer exists after deletion
• No delivery attempted after deletion on subsequent trade event

ETA: 12 hours

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Coordinate on Telegram

[bheesty]

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

Hello maintainer, I can fix this issue and deliver within the ETA. Kindly assign. Thank you

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[barnabasolutayo-lgtm]

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

Hello Maintainer. Pls I would love to resolve this issue. Please assign to me. Thank you

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[wagmiiii]

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

please assign to me

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[VeronicDev]

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

Hello maintainer. Please assign me this

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

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[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@wagmiiii's PR #528 was approved and merged by @Chucks1093.

🏆 @wagmiiii: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (363 total points). Track your full progress on GrantFox.

👏 Great work, @wagmiiii! Keep contributing to accesslayerorg.

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This issue has been completed by @wagmiiii as part of the Stellar Wave Program's 6th Wave 🥳

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