CallCompletionRequest

{
    "expertId": "exp-001",
    "projectId": "proj-001",
    "callId": "string",
    "duration": 900,
    "status": "COMPLETED",
    "reason": "The expert was not available",
    "callStartTime": "2025-04-02T10:00:00Z",
    "callEndTime": "2025-04-02T11:00:00Z"
}