Create AI knowledge base

curl --request POST \
  --url https://api.wacht.dev/ai/knowledge-bases \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Product Documentation",
  "description": "Contains all product documentation",
  "configuration": {}
}
'

{
  "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": {}
}