Update src/vectorstore/vectorstore.py

src/vectorstore/vectorstore.py

@@ -3,6 +3,7 @@
 from typing import List
 from langchain_community.vectorstores import FAISS
 from langchain_openai import OpenAIEmbeddings
+from langchain_community.embeddings import HuggingFaceEmbeddings
 # from langchain.schema import Document
 from langchain_core.documents import Document
 
@@ -12,7 +13,13 @@ class VectorStore:
     
     def __init__(self):
         """Initialize vector store with OpenAI embeddings"""
-        self.embedding = OpenAIEmbeddings()
+        # self.embedding = OpenAIEmbeddings()
+        # ✅ Hugging Face Embeddings (LOCAL / FREE)
+        self.embeddings = HuggingFaceEmbeddings(
+            model_name="sentence-transformers/all-MiniLM-L6-v2",
+            model_kwargs={"device": "cpu"},   # change to "cuda" if GPU available
+            encode_kwargs={"normalize_embeddings": True}
+        )
         self.vectorstore = None
         self.retriever = None