fix: properly log settings as structlog kwargs instead of dropping them

backend/mem0_manager.py

@@ -60,7 +60,14 @@ class Mem0Manager:
 
     def __init__(self):
         # Custom endpoint configuration with graph memory enabled
-        logger.info("Initializing Mem0Manager with custom endpoint")
+        logger.info(
+            "Initializing Mem0Manager with custom endpoint",
+            model=settings.default_model,
+            embedding_model=settings.embedding_model,
+            embedding_dims=settings.embedding_dims,
+            qdrant_host=settings.qdrant_host,
+            neo4j_uri=settings.neo4j_uri,
+        )
         config = {
             "version": "v1.1",
             "enable_graph": True,