Update requirements.txt

requirements.txt

@@ -1,17 +1,22 @@
+# --- Core LangChain ---
 langchain==0.3.1
 langchain-core==0.3.6
 langchain-community==0.3.1
-langchain-huggingface==0.1.0
 
+# --- Embeddings ---
+sentence-transformers==2.6.1
 
-huggingface-hub==0.25.2
---no-binary=huggingface-hub
-
+# --- Vector DB ---
 chromadb==0.5.5
+
+# --- PDF parsing ---
 pypdf==4.2.0
-sentence-transformers==3.0.1
 
+# --- UI ---
 gradio==5.1.0
+
+# --- Utilities ---
 pydantic==2.10.6
+langchain-text-splitters==0.3.0
 sentencepiece
 protobuf