Feature/ontology class clean (#249)

* [add] Complete ontology engineering feature implementation

* [add] Add ontology feature integration and validation utilities

* [add] Add OWL validator and validation utilities

* [fix] Add missing render_ontology_extraction_prompt function

* [fix]Add dependencies, fix functionality

api/app/models/__init__.py

@@ -28,6 +28,10 @@ from .tool_model import (
     ToolExecution, ToolType, ToolStatus, AuthType, ExecutionStatus
 )
 from .memory_perceptual_model import MemoryPerceptualModel
+from .ontology_scene import OntologyScene
+from .ontology_class import OntologyClass
+from .ontology_scene import OntologyScene
+from .ontology_class import OntologyClass
 
 __all__ = [
     "Tenants",