{
  "provenance": "Synthetic drawing created for Hasr regression and UI demonstration. Not a real Saudi project. Expected values derived by hand, not from the extractor.",
  "options": {
    "units": "auto",
    "layers": {
      "A-WALL-AXIS": {
        "mode": "wall_axis",
        "item": "محاور جدران تعليمية",
        "height_m": 3,
        "deduction_m2": 6
      },
      "E-CONDUIT-25": {
        "mode": "conduit",
        "item": "مسار مواسير كهرباء",
        "spec": "قطر 25 مم، مفترض في المثال فقط"
      },
      "P-WATER-25": {
        "mode": "pipe",
        "item": "مسار أنابيب مياه",
        "spec": "قطر 25 مم، مفترض في المثال فقط"
      },
      "A-FLOOR": {
        "mode": "area",
        "item": "حدود أرضيات مستقلة"
      }
    },
    "blocks": {
      "SOCKET": {
        "mode": "count",
        "item": "رمز مأخذ"
      },
      "LUMINAIRE": {
        "mode": "count",
        "item": "رمز إنارة"
      },
      "DOOR": {
        "mode": "count",
        "item": "رمز باب"
      }
    },
    "duplicates": "review",
    "include_hidden": false
  },
  "expected": {
    "conduit_m": 34,
    "water_pipe_m": 7,
    "wall_axis_m": 63,
    "wall_one_side_area_m2": 183,
    "floor_area_m2": 60,
    "sockets": 6,
    "lights": 4,
    "doors": 3
  },
  "calculations": [
    "Conduit: (10+7+10)+(2+3+2)=34",
    "Pipe: 2+5=7",
    "Wall axes: 12+9+12+9+9+6+6=63",
    "Wall single-side area: 63*3-6=183",
    "Floor: 5*3.5+5*3.5+5*5=60"
  ]
}