curl https://sys.poixe.com/api/channels \
  -X POST \
  -H "Authorization: Bearer $POIXE_SYSTEM_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "type": "openai_chatgpt",
    "keys": ["enc:v2:k1:ABC...", "enc:v2:k1:DEF..."],
    "price": 0.5,
    "comment": "batch jan"
  }'

{
  "task_id": "sys-1731337200000000000-a3b9c2d1",
  "message": "2 key(s) submitted, check status via /api/channel-tasks/sys-...",
  "timestamp": 1731337200
}