Get Internship By Slug

{
    "message": "Internship program fetched successfully",
    "data": {
        "id": 6,
        "title": "NEWWWW",
        "reference": "c4535e62-c3e2-411b-a8e6-eca56c918e16",
        "description": "A 3-month backend engineering internship focused on Node.js and PostgreSQL.",
        "slug": "newwww2025-07-01591",
        "startDate": "2025-07-01",
        "endDate": "2025-09-30",
        "requirements": "Basic knowledge of JavaScript and REST APIs.",
        "employerId": 2,
        "createdAt": "2025-06-25T15:29:35.583Z",
        "updatedAt": "2025-06-25T15:29:35.583Z",
        "deletedAt": null,
        "employer": {
            "id": 2,
            "firstName": "cod6ddf",
            "lastName": "cod6ddf",
            "otherName": null,
            "email": "employer@worknation.com",
            "phoneNumber": "1244244374",
            "gender": "male",
            "userId": 3,
            "role": "employer",
            "password": null,
            "createdAt": "2025-06-24T11:53:51.473Z",
            "updatedAt": "2025-06-24T11:53:51.473Z",
            "deletedAt": null
        },
        "categoryMappings": [
            {
                "id": 6,
                "internshipProgramId": 6,
                "programCategoryId": 1,
                "programCategory": {
                    "id": 1,
                    "name": "Accounting, Auditing & Finance",
                    "description": "Careers focused on managing financial records, audits, and financial planning.",
                    "createdAt": "2025-06-24T11:53:43.310Z",
                    "updatedAt": "2025-06-24T11:53:43.310Z",
                    "deletedAt": null
                }
            }
        ]
    }
}