Get issue relations

Example response

{
  "items": [
    {
      "id": "9bsv0s46s6s002p9ltq0",
      "kind": "blocks",
      "direction": "outgoing",
      "related": {
        "id": "9bsv0s46s6s002p9ltq0",
        "key": "MOB-1",
        "numeric_id": 1,
        "kind": "story",
        "title": "Implement authentication",
        "description": "Add OAuth2 password and authorization code flows.",
        "status": "open",
        "priority": "normal",
        "reported_by": {
          "id": "9bsv0s46s6s002p9ltq0",
          "first_name": "Test",
          "last_name": "User",
          "picture": "https://example.com/users/my-user.png"
        },
        "assignees": [
          {
            "id": "9bsv0s46s6s002p9ltq0",
            "first_name": "Test",
            "last_name": "User",
            "picture": "https://example.com/users/my-user.png"
          }
        ],
        "reviewers": [
          {
            "id": "9bsv0s46s6s002p9ltq0",
            "first_name": "Test",
            "last_name": "User",
            "picture": "https://example.com/users/my-user.png"
          }
        ],
        "labels": [
          {
            "id": "9bsv0s46s6s002p9ltq0",
            "name": "frontend"
          }
        ],
        "project": {
          "id": "9bsv0s46s6s002p9ltq0",
          "key": "ENG",
          "name": "Engineering Project",
          "description": "Main engineering project",
          "logo": "https://example.com/logo.png",
          "status": "active"
        },
        "namespace": {
          "id": "9bsv0s46s6s002p9ltq0",
          "slug": "platform",
          "name": "Engineering"
        }
      }
    }
  ]
}