Get project structure (Step 3 load)

{
    "towers": [
        {
            "tower": {
                "name": "Tower A",
                "totalFloors": 15
            },
            "floorPlans": [
                {
                    "unitType": "APARTMENT",
                    "label": "3BHK",
                    "countPerFloor": 2
                }
            ]
        }
    ],
    "zones": [],
    "amenities": {
        "specific": [],
        "inherited": []
    }
}