# FinChat API (FastAPI) — backend dependencies for the headless Space.
#
# The RAG stack is pinned to the SAME versions verified end-to-end in the main
# requirements.txt (Python 3.12). Unpinned installs previously resolved a
# different stack and broke chromadb's storage engine at startup — keep these
# pins in sync with ../requirements.txt.

# --- web server ---
fastapi==0.115.6
uvicorn[standard]==0.34.0

# --- RAG orchestration ---
langchain==1.3.11
langchain-community==0.4.2
langchain-huggingface==1.2.2
langchain-groq==1.1.3
langchain-chroma==1.1.0

# --- vector store ---
chromadb==1.5.9

# --- embedding model runtime (pulls in torch, CPU is fine) ---
sentence-transformers==5.6.0

# --- config / secrets ---
python-dotenv==1.2.2