Downgrade some requirements for old compatibility

requirements.txt

@@ -1,4 +1,4 @@
-numpy>=2.2.0
+# numpy>=2.2.0
 pandas>=2.1.2
 pydantic>=2.10.0
 pydantic-settings>=2.5.1
@@ -15,12 +15,18 @@ uvicorn>=0.24.0
 openai>=1.58.1
 cohere>=5.13.0
 litellm>=1.55.4
-langchain>=0.3.10
-langchain-openai>=0.2.14
-langchain-experimental>=0.3.3
-langchain-core>=0.3.27
-chromadb>=0.6.0
-weave>=0.51.27
+langchain == 0.2.2
+langchain-core >= 0.2.2
+langchain-openai >= 0.1.8
+langchain-experimental >= 0.0.60
+# langchain>=0.3.10
+# langchain-core>=0.3.27
+# langchain-openai>=0.2.14
+# langchain-experimental>=0.3.3
+
+# chromadb>=0.6.0
+chromadb == 0.4.23
+weave>=0.51.29
 wandb[workspaces]>=0.19.0
 fasttext-wheel
 tree-sitter-languages>=1.7.1