PlanWithDetail

{
    "plan": {
        "id": 0,
        "planType": "string",
        "planName": "string",
        "planAbstract": "string",
        "projId": "string"
    },
    "details": [
        {
            "planId": 0,
            "planName": "string",
            "planChapter": "string",
            "planContent": "string"
        }
    ]
}