Get unit details

{
    "data": {
        "id": 1,
        "code": "UNIT-0001",
        "slug": "downtown-office-tower",
        "name": "Downtown Office Tower",
        "description": "Premium office space in the heart of downtown",
        "location": "Cairo, Egypt",
        "latitude": 30.0444,
        "longitude": 31.2357,
        "total_value": 5000000,
        "currency": "EGP",
        "available_percentage": 45.5,
        "sold_percentage": 54.5,
        "active_investors_count": 12,
        "minimum_investment": 50000,
        "expected_annual_return": 12.5,
        "status": "active",
        "launch_date": "2024-01-01",
        "maturity_date": "2027-01-01",
        "current_unit_price": 5000,
        "total_units": 1000,
        "available_units": 455,
        "risk_level": "low",
        "management_fee_percentage": 2,
        "featured_image": "https://example.com/images/unit-1.jpg",
        "gallery_images": [
            "https://example.com/images/unit-1-a.jpg",
            "https://example.com/images/unit-1-b.jpg"
        ],
        "category": {
            "id": 1,
            "name": "Commercial Real Estate",
            "icon": "building",
            "color": "#3B82F6"
        },
        "created_at": "2024-01-15T10:30:00+00:00",
        "updated_at": "2024-01-20T14:45:00+00:00",
        "investment_status": "available",
        "days_until_maturity": 117,
        "funding_progress": 0.75,
        "performance_history": {
            "periods": {
                "1D": 0,
                "1W": 0.5,
                "1M": 2.1,
                "3M": 6.3,
                "6M": 12.8,
                "1Y": 25.4
            }
        }
    }
}