Add LangGraph agent system: requirements.txt

langgraph-agents/requirements.txt

@@ -0,0 +1,13 @@
+langgraph>=0.4.0
+langgraph-checkpoint>=2.0.0
+langchain-google-genai>=2.1.0
+langchain-openai>=0.3.0
+langchain-community>=0.3.0
+langchain-core>=0.3.0
+fastapi>=0.115.0
+uvicorn>=0.32.0
+sse-starlette>=2.0.0
+python-dotenv>=1.0.0
+pydantic>=2.10.0
+numpy>=1.26.0
+scipy>=1.13.0