Finalize retrieval-only RAG dependencies

requirements.txt

@@ -5,7 +5,7 @@ fastapi==0.114.2
 uvicorn[standard]==0.30.6
 pydantic==2.9.2
 
-# --- LangChain + vector store (aligned) ---
+# --- LangChain + Vector Store ---
 langchain==0.3.7
 langchain-community==0.3.7
 langchain-text-splitters==0.3.2
@@ -14,21 +14,24 @@ chromadb>=0.5.7,<0.6.0
 posthog==3.5.0
 langchain-huggingface==0.1.2
 
-# --- Embeddings / Hugging Face ---
+# --- Embeddings (CPU-only) ---
+sentence-transformers>=2.6,<3
 transformers>=4.46,<5
-torch==2.3.1+cpu         # CPU wheel from the PyTorch index above
+torch==2.3.1+cpu
+onnxruntime>=1.18.0
+numpy==1.26.4
+
+# --- Hugging Face ---
 huggingface-hub>=0.23.1,<0.26
-numpy==1.26.4            # compatible with langchain on Py<3.12
-pandas>=2.2,<3
 
-# --- Required extras ---
+# --- Data / Parsing ---
 pypdf>=4.2.0
-onnxruntime>=1.18.0
-
-# --- Ingest helpers ---
-tqdm>=4.66
-Unidecode>=1.3
 pymupdf>=1.24
 beautifulsoup4>=4.12
 lxml>=5.1
 docx2txt>=0.8
+pandas>=2.2,<3
+
+# --- Utilities ---
+tqdm>=4.66
+Unidecode>=1.3