Add integration test for the post delete endpoint removing the post and rejecting deletion by a non-owner

[Chucks1093]

Summary

A creator should be able to delete their own posts, but another wallet must not be able to delete a post they did not author. An integration test should confirm the deletion succeeds for the owner and is rejected for everyone else.

Scope

• Seed a post authored by creator A
• DELETE the post as creator A and assert 204 is returned
• Assert the post no longer appears in creator A's post list
• Authenticate as creator B and attempt to DELETE the same post, assert 403 with forbidden
• Assert an unauthenticated DELETE returns 401

Acceptance Criteria

• 204 returned when the owner deletes their post
• Post absent from the post list after deletion
• Non-owner receives 403 with forbidden
• Unauthenticated request returns 401
• Deleted post cannot be fetched by ID (returns 404)

ETA: 12 hours

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Coordinate on Telegram

[Gentleslyl2006]

Hello maintainer
I would love to contribute to this Issue and I assure you the best result which matches your expectation