List team leave

curl 'https://api.expiryedge.com/v1/getTeamAvailability?team_id=tm_3Fh8qLx' \
  -H "Authorization: Bearer $EXPIRYEDGE_API_KEY"

{
  "availability": [
    {
      "id": "av_6Jc3nTy",
      "user_id": "u_4Np8cZe",
      "organization_id": "org_northwind",
      "start_date": "2026-10-15",
      "end_date": "2026-10-22",
      "reason": "Annual leave",
      "created_by": "u_4Np8cZe",
      "created_at": "2026-09-27T14:05:00.000Z",
      "updated_at": "2026-09-27T14:05:00.000Z"
    }
  ]
}