Update tiered commissions (V2)

Replaces the tiered commission tiers for a sale, then recomputes and persists the Office Gross Commission. Tiered and flat commissions are mutually exclusive.

Validation & Requirements

Required Parameters

• saleGuid (path, string, format=guid)
• tieredCommissions (body, object)

Required JSON Body Fields

• None

Validations

• Invalid GUID values in *Guid/*Guids fields return 422 Unprocessable Entity.
• Invalid date values in *date* fields return 422 Unprocessable Entity.
• Missing required request body returns 422 Unprocessable Entity with Missing request body..
• Additional business-rule validation may return 422 with details in the errors array.