CHW-4517 BypassExemptionInvalid

bypass exemption payload requires a non-empty client_id and reason; check the request body shape

Default message: bypass exemption payload requires a non-empty client_id and reason; check the request body shape
HTTP status: 400 (client)

Problem. POST /api/bypass/exemptions returned 400. Cause. The body could not be decoded or was missing required fields (client_id, reason). Fix. Send a body that includes both the target client identifier and a non-empty reason. HTTP 400.