curl --request GET \
  --url https://api.olostep.com/user/credits/info \
  --header 'Authorization: Bearer <token>'

{
  "credits": 12500,
  "breakdown": [
    {
      "purchase_kind": "Subscription",
      "allocated_units": 10000,
      "remaining_units": 8500,
      "expiry_date": 1735689600
    },
    {
      "purchase_kind": "Top-up",
      "allocated_units": 5000,
      "remaining_units": 4000,
      "expiry_date": 1743465600
    }
  ],
  "active_subscription": {
    "id": "SUB_PRO",
    "display_name": "Pro",
    "credits": 10000,
    "created_at": 1704067200
  },
  "allow_usage": true
}