curl --request POST \
  --url https://api.seamind.xyz/api/v1/assignments/{assignment_id}/courses \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "courseIds": [
    "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  ],
  "curriculumId": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}
'

{
  "assignmentId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "courses": [
    {
      "courseId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "title": "<string>",
      "assignedAt": "2023-11-07T05:31:56Z",
      "curriculumId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "curriculumTitle": "<string>"
    }
  ]
}