curl -X POST https://api.intellibase.dev/api/v1/ontologies \
  -H "Authorization: Bearer ib-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Software Engineering",
    "schema": {
      "ontology": {
        "hierarchy": [
          {
            "level": 0,
            "node_types": {
              "Developer": {
                "properties": ["name", "role", "team"],
                "description": "Software developer"
              },
              "Feature": {
                "properties": ["name", "status", "deadline"],
                "description": "Software feature"
              }
            }
          }
        ],
        "edge_types": [
          {
            "name": "WORKS_ON",
            "source_types": ["Developer"],
            "target_types": ["Feature"],
            "properties": ["role"],
            "temporal": true,
            "description": "Developer works on feature"
          }
        ]
      }
    }
  }'

{
  "id": "ont-abc123",
  "name": "Software Engineering",
  "created_at": "2024-01-15T10:30:00Z",
  "schema": {
    "ontology": {
      "hierarchy": [ ... ],
      "edge_types": [ ... ]
    }
  }
}