Soft-delete a scene by moving it to trash.

This action will:
- Remove the scene from active workspace lists
- Move scene metadata to trash storage
- Keep the item restorable from trash until it is permanently deleted via internal trash flows

<Callout type="warn">
This endpoint does not permanently delete the scene. It performs a trash move (soft delete).
</Callout>

<Callout type="warn">
Existing links or integrations may stop working while the scene is in trash.
</Callout>

**Use cases:**
- Moving unused or outdated scenes to trash
- Implementing scene management workflows
- Bulk soft-delete operations
- Lifecycle management before permanent deletion