setup assisant bot

requirements.txt

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+numpy==1.26.4
+openai==1.58.1
+pandas==2.2.3
+python-dotenv==1.0.1
+reportlab==4.2.5
+requests==2.32.3
+fastapi
+Jinja2==3.1.5
+matplotlib==3.8.2
+slack_sdk==3.34.0
+tabulate==0.9.0
+python-multipart==0.0.20
+langgraph==0.3.2
+langchain==0.3.19
+langchain-openai== 0.3.7
+langchain-anthropic==0.3.9
+gunicorn==23.0.0
+tqdm
+uvicorn[standard]
+cryptography
+pydantic-settings