# Core
transformers>=4.35.0  # 仅用于分词器，不需要模型推理
pypdf>=3.0.0
pandas>=2.0.0
requests>=2.31.0
beautifulsoup4>=4.12.0

# LangChain ecosystem
langchain>=0.1.0
langchain-community>=0.0.10
# langchain-huggingface>=0.0.3  # 注释：如使用在线 Embedding API 则不需要
langchain-core>=0.1.0
langchain-openai>=0.0.5
langchain-text-splitters>=0.1.0

# Vector Database
chromadb>=0.4.0  # 轻量级向量数据库，可选 torch 但不强制

# LangGraph
langgraph>=0.0.30
langgraph-checkpoint-postgres>=0.0.5

# ZhipuAI (智谱AI)
zhipuai>=1.0.0

# Backend
fastapi>=0.109.0
uvicorn[standard]>=0.27.0
websockets>=12.0

# Frontend
streamlit>=1.30.0

# Database
psycopg[binary,pool]>=3.1.0

# Pydantic
pydantic>=2.0.0

# Utilities
python-dotenv>=1.0.0
typing-extensions>=4.9.0
ipython>=8.0.0