Get placement test orders

{
  "status": 200,
  "message": "Placement test orders retrieved successfully",
  "data": {
    "orders": [
      {
        "id": "order_abc123",
        "cartOrderId": "cart_xyz789",
        "testName": "Monthly Test - December 2024",
        "mailboxId": "mailbox_def456",
        "mailboxEmail": "user@example.com",
        "status": "COMPLETED",
        "billingCycle": "MONTHLY",
        "subscriptionId": "sub_1AbcDefGhiJklMnop",
        "results": {
          "inboxRate": 88.5,
          "spamRate": 11.5,
          "score": 85.2
        },
        "seedAccounts": ["google", "microsoft365"],
        "spamassassin": true,
        "blacklist": true,
        "createdAt": "2024-12-01T10:00:00.000Z",
        "completedAt": "2024-12-01T10:45:00.000Z"
      },
      {
        "id": "order_ghi789",
        "cartOrderId": "cart_uvw345",
        "testName": "Weekly Test",
        "mailboxId": "mailbox_jkl012",
        "mailboxEmail": "sales@example.com",
        "status": "PENDING",
        "billingCycle": "ONE_TIME",
        "seedAccounts": ["google", "microsoft365"],
        "spamassassin": true,
        "blacklist": true,
        "createdAt": "2024-12-15T14:30:00.000Z",
        "completedAt": null
      }
    ],
    "pagination": {
      "currentPage": 1,
      "totalPages": 5,
      "totalCount": 48,
      "limit": 10,
      "hasNextPage": true,
      "hasPreviousPage": false
    }
  }
}