feat(graphiti): Integrate Langfuse Tracer for enhanced monitoring and tracing of Graphiti operations

feat(graphiti): Define entity and edge types in new graphiti_schema for structured data extraction
feat(graphiti): Enhance ingest_episode_event_step with schema integration for improved episode processing

services/graphiti_client.py

@@ -12,6 +12,8 @@ from graphiti_core.llm_client import LLMConfig
 from graphiti_core.llm_client.openai_generic_client import OpenAIGenericClient
 from graphiti_core.embedder import OpenAIEmbedder, OpenAIEmbedderConfig
 
+from services.graphiti_tracer import build_langfuse_tracer
+
 
 class GraphitiError(Exception):
     """Fehler beim Zugriff auf den Graphiti-Client."""
@@ -89,12 +91,15 @@ async def _build_graphiti() -> Graphiti:
         )
     )
 
+    tracer = build_langfuse_tracer(span_prefix="graphiti", ctx=None)
+
     client = Graphiti(
         uri=neo4j_uri,
         user=neo4j_user,
         password=neo4j_password,
         llm_client=llm_client,
         embedder=embedder,
+        tracer=tracer,
     )
     await client.build_indices_and_constraints()
     return client