Add integration test for the creator profile page displaying a 404 error state for a non-existent creator ID

[Chucks1093]

Summary

When a user navigates to a creator profile URL with a non-existent creator ID, the page should display a clear not-found error state rather than loading indefinitely or crashing. An integration test should mock a 404 API response and confirm the error state is rendered.

Scope

• Mock the creator profile API to return 404 for a specific creator ID
• Navigate to /creator/{unknown-id}
• Assert a not-found error message is displayed
• Assert the page does not show a loading skeleton or the generic network error state
• Assert a link or button to navigate back to the creator list is present

Acceptance Criteria

• Not-found error state rendered on 404 API response
• Error state distinct from generic network error state
• No loading skeleton visible after 404 resolves
• Navigation back to creator list available from the error state

ETA: 12 hours

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Coordinate on Telegram

[Abba073]

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[jaymoneymanxl]

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[Calebux]

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let me work on this issue

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[grantfox-oss]

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@Calebux's PR #664 was approved and merged by @Chucks1093.

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