Update requirements.txt

requirements.txt

@@ -1,21 +1,34 @@
-gradio==4.44.0
-pandas==2.2.2
-numpy==1.26.4
-scikit-learn==1.5.2
-xgboost==2.1.1
-lightgbm==4.5.0
-shap==0.45.1
-matplotlib==3.9.2
-jinja2==3.1.4
-huggingface_hub==0.24.6
-transformers==4.44.2
-accelerate==0.34.2
+# --- Core UI & utilities ---
+gradio>=4.44,<5
+jinja2>=3.1,<4
+python-dotenv>=1.0,<2
+
+# --- Data & plotting ---
+pandas>=2.2,<3
+numpy>=1.26,<2
+matplotlib>=3.8,<4
+pyarrow>=14,<20
+
+# --- ML stack (tabular + explainability) ---
+scikit-learn>=1.4,<2
+joblib>=1.3,<2
+xgboost>=2.0,<3
+lightgbm>=4.3,<5
+shap>=0.45,<0.47
+
+# --- Hugging Face artifacts & (optional) tiny LLM orchestrator ---
+huggingface_hub>=0.24,<0.26
+transformers>=4.41,<5
+accelerate>=0.28,<0.36
+# (Optional — comment these two if you don't use the tiny LLM orchestrator.)
+
+# --- Tracing (optional) ---
 langfuse>=3.5,<4
-python-dotenv==1.0.1
-# Optional data layers (pick what you use)
-google-cloud-bigquery==3.25.0
-google-auth==2.35.0
-motherduck>=0.8,<1
+
+# --- Warehouses (choose one; both can coexist) ---
+# BigQuery
+google-cloud-bigquery>=3.20,<4
+google-auth>=2.30,<3
+
+# MotherDuck via DuckDB extension (no 'motherduck' pip needed)
 duckdb>=1.0,<2
-pyarrow==17.0.0
-joblib==1.4.2