[PM-33298] Fix InvalidCastException when uploading attachments as admin

[boris324]

Fixes #7062

Problem

When uploading attachments via admin endpoints, GetOrganizationDetailsByIdAsync returns a CipherOrganizationDetails which is then passed into CreateAttachmentForDelayedUploadAsync / CreateAttachmentAsync. These methods cast the cipher to CipherDetails when calling ReplaceAsync, but CipherOrganizationDetails is a parent of CipherDetails, so the downcast fails with an InvalidCastException.

Fix

Use pattern matching (is CipherDetails) to call the appropriate ReplaceAsync overload. When the cipher is a CipherDetails, use the specific overload; otherwise fall back to the base ReplaceAsync(Cipher) overload.

Applied to all three occurrences in CipherService.cs:

• CreateAttachmentForDelayedUploadAsync
• CreateAttachmentAsync
• DeleteAttachmentAsync

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[bitwarden-bot]

Thank you for your contribution! We've added this to our internal tracking system for review.
ID: PM-33298
Link: https://bitwarden.atlassian.net/browse/PM-33298

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