ends is not provided, replaces from starts to the end of the audio.POST /producer/submit/REPLACE -> {"code":"success","data":"task_xxx"}GET /producer/fetch/{id} or POST /producer/fetch -> inspect data.status and data.datadata.status = "SUCCESS", data.data contains the normalized result payloadPOST /producer/submit/MUSIC is the only Producer submit action currently enabled.Authorization: Bearer <CCAPI token>task_xxx ID instead of exposing the upstream job IDTaskDto) with normalized data payload