Update requirements.txt

requirements.txt

@@ -1,12 +1,13 @@
 # --- Core Framework & Orchestration ---
 langchain>=0.3.0
 langchain-community>=0.3.0
-langchain-ollama>=0.2.0        # Per Llama 3 locale
-langchain-huggingface>=0.1.0   # NUOVO: Per embeddings senza warning
+langchain-huggingface>=0.1.0   
+langchain-core
+huggingface_hub
 
 # --- Data Validation ---
 pydantic>=2.0
-pyshacl                        # Per validazione SHACL (Modulo 3)
+pyshacl                        # Per validazione SHACL
 
 # --- NLP & Semantic Chunking ---
 sentence-transformers          # Backend per HuggingFace