Delete Accounting Bill

    Permanently deletes an accounting bill and its associated journal entry.

    This endpoint performs a complete deletion of the bill including:
    - Removal of all bill line items and associated data
    - Deletion of the corresponding accounts payable journal entry
    - Cleanup of any tax calculations and allocations
    - Removal of vendor payment allocations if applicable

    **Important Notes:**
    - This operation is irreversible and permanently removes the bill from the system
    - The associated journal entry will be automatically deleted to maintain accounting integrity
    - All double-entry bookkeeping records related to this bill will be removed
    - Any payments allocated to this bill should be handled separately before deletion
    - Deletion may affect financial reports and account balances

    **Restrictions:**
    - Bills with allocated payments may require payment reallocation first
    - Consider the impact on historical financial reporting
    - Bills cannot be deleted in a closed period