Update requirements.txt

requirements.txt

@@ -1,3 +1,30 @@
-altair
+# --- 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
+
+# --- Data Validation ---
+pydantic>=2.0
+pyshacl                        # Per validazione SHACL (Modulo 3)
+
+# --- NLP & Semantic Chunking ---
+sentence-transformers          # Backend per HuggingFace
+scikit-learn                   # Per cosine similarity
+numpy
+matplotlib                     # Per grafici di analisi
+nltk                           # Per lo splitting linguistico avanzato
 pandas
-streamlit
+spacy
+
+# --- Graph Database & Semantic Web ---
+neo4j>=5.0.0                   # Driver Python ufficiale
+rdflib                         # Gestione RDF
+networkx                       # Calcoli su grafo (usato da PyVis/Streamlit)
+
+# --- Frontend ---
+streamlit>=1.30.0
+pyvis                          # Visualizzazione interattiva
+
+# --- Utilities ---
+python-dotenv