Delete a knowledge base collection

Permanently deletes a collection and all its contents. This operation will:

• Delete the collection itself
• Delete all articles within the collection
• Recursively delete all child collections and their articles

⚠️ Warning: This is a destructive operation that cannot be undone. Make sure to
backup any content you want to preserve before deletion.

Note: This endpoint only deletes the specified collection. If you have linked
collections in other locales, they must be deleted separately. The system does
not automatically cascade deletions across linked collections to prevent
accidental data loss.