Get an admin proposal

curl --request GET \
  --url https://api.onchainden.com/api/v1/admins/proposals \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "prop_admin_update_123",
    "resourceType": "admins",
    "action": "update",
    "signatureStatus": "approvalReady",
    "executionStatus": "completed",
    "threshold": 3,
    "approvals": [],
    "rejections": [],
    "createdAt": "2026-01-18T00:00:00.000Z",
    "expiresAt": "2026-01-25T00:00:00.000Z",
    "data": {
      "members": [
        {
          "id": "mem_4",
          "name": "Admin Dana",
          "type": "user",
          "walletAddress": "0xdef..."
        }
      ],
      "threshold": 3
    },
    "result": {
      "resolution": "approved",
      "resources": [
        {
          "type": "admin",
          "id": "adm_123",
          "uri": "/api/v1/admins/adm_123"
        }
      ]
    }
  }
}