Update requirements.txt

requirements.txt

@@ -37,7 +37,13 @@ jsonpointer==3.0.0
 langchain==0.3.25
 langchain-community==0.3.24
 langchain-core==0.3.59
+langchain-experimental==0.3.4
+langchain-openai==0.3.17
 langchain-text-splitters==0.3.8
+langgraph==0.4.5
+langgraph-checkpoint==2.0.26
+langgraph-prebuilt==0.1.8
+langgraph-sdk==0.1.70
 langsmith==0.3.42
 lxml==5.4.0
 markdown-it-py==3.0.0
@@ -53,6 +59,7 @@ numpy==2.2.5
 openai==1.78.1
 openpyxl==3.1.5
 orjson==3.10.18
+ormsgpack==1.9.1
 packaging==24.2
 pandas==2.2.3
 pillow==11.1.0
@@ -88,6 +95,7 @@ SQLAlchemy==2.0.40
 starlette==0.46.2
 sympy==1.14.0
 tenacity==9.1.2
+tiktoken==0.9.0
 tokenizers==0.21.1
 tomlkit==0.13.2
 torch==2.7.0
@@ -102,8 +110,10 @@ tzdata==2025.2
 urllib3==2.4.0
 uvicorn==0.34.2
 websockets==15.0.1
+wikipedia==1.4.0
 Wikipedia-API==0.8.1
 xlrd==2.0.1
+xxhash==3.5.0
 yarl==1.20.0
 zstandard==0.23.0
 langchain-openai==0.3.17