Add integration test for creator detail endpoint returning 404 for a non-existent creator ID

[Chucks1093]

Summary

The creator detail endpoint should return 404 when the requested creator ID does not exist in the database. An integration test should confirm the status code, the error message shape, and that no internal details are leaked in the response body.

Scope

• Call the creator detail endpoint with a creator ID that does not exist
• Assert response status is 404
• Assert response body contains an error field with a message identifying the resource as not found
• Assert the response does not include database error details, table names, or stack traces

Acceptance Criteria

• Response status is 404 for non-existent creator
• error field present with descriptive message
• No internal details in response body
• Response shape consistent with other 404 responses in the API

ETA: 12 hours

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Coordinate on Telegram

[Rafiat30]

@Rafiat30 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

can i work on this

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[drips-wave]

Congratulations, @Rafiat30! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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