List AI knowledge bases

curl --request GET \
  --url https://api.wacht.dev/ai/knowledge-bases \
  --header 'Authorization: <api-key>'

{
  "data": [
    {
      "id": "1234567890123456789",
      "created_at": "2024-01-15T10:30:00Z",
      "updated_at": "2024-01-15T10:30:00Z",
      "deployment_id": "9876543210987654321",
      "name": "Product Documentation",
      "description": "Knowledge base for product docs",
      "configuration": {},
      "documents_count": 15,
      "total_size": 5242880
    }
  ],
  "has_more": false
}