curl --request GET \
  --url https://api.alpha-1edtech.ai/edubridge/analytics/highestGradeMastered/:studentId/:subject \
  --header 'Authorization: Bearer <token>'

{
  "studentId": "<string>",
  "subject": "<string>",
  "grades": {
    "ritGrade": "3",
    "edulasticGrade": "3",
    "placementGrade": "3",
    "testOutGrade": "3",
    "highestGradeOverall": "3"
  }
}