Update requirements.txt

requirements.txt

@@ -3,11 +3,11 @@ requests==2.32.3
 
 # --- LangChain ecosystem ---
 langchain==0.3.15
-langchain-core==1.0.7
+langchain-core==0.3.34
 langchain-community==0.3.15
 langchain-experimental==0.3.3
 langchain-openai==0.3.4
-langchain-huggingface==1.0.0
+langchain-huggingface==0.1.2
 langgraph==0.2.55
 
 # --- Google + Hugging Face + Tools ---