Delete Cost Rate
----------------

Delete a cost rate by UUID within the current mandant. This performs a \
cascade delete, removing all associated schedules, intervals, and versions. \
On success, the response confirms the deletion.

**Request**

- Method: ``DELETE``
- Path: ``/api/dynamic_pricing/cost_rate/{uuid}``

**Path parameters**

.. list-table::
   :widths: 20 15 65
   :header-rows: 1

   * - Name
     - Type
     - Description
   * - uuid
     - string
     - Cost rate UUID to delete.

**Example request**

.. code-block:: bash

    curl --location --request DELETE 'https://example.beenergised.cloud/api/dynamic_pricing/cost_rate/<COST_RATE_UUID>' \
    --header 'x-api-token: <your_token>'

**Response (200)**

.. code-block:: json

    {
      "status": "ok",
      "message": "Cost rate deleted successfully"
    }

**Error responses**

- ``404``: Cost rate not found.

.. code-block:: json

    {
      "status": "error",
      "message": "Cost rate not found"
    }

- ``400``: Cost rate cannot be deleted \
  (e.g., it is still referenced by active rate schedules).

.. code-block:: json

    {
      "status": "error",
      "message": "Cost rate cannot be deleted"
    }

- ``500``: Generic server error.

.. code-block:: json

    {
      "status": "error",
      "message": "Internal Server Error"
    }