List Webhook Subscriptions

GET /accounts/{account_id}/webhooks

curl https://api.brale.xyz/accounts/{account_id}/webhooks \
  -H "Authorization: Bearer {access_token}"

{
  "subscriptions": [
    {
      "id": "3D3jNzs2r7Sf78qtYpRe1biscLG",
      "events": ["transfer.completed"],
      "url": "https://your-app.example.com/webhooks/brale",
      "status": "active"
    }
  ]
}