update to use local sentence embedings

rag_app/rag.py

@@ -18,7 +18,7 @@ from sentence_transformers import SentenceTransformer, util
 from sklearn.metrics.pairwise import cosine_similarity
 import PyPDF2
 
-embedding_model = SentenceTransformer("all-MiniLM-L6-v2")
+embedding_model = SentenceTransformer("models/all-MiniLM-L6-v2/")
 llm = Llama(model_path="models/Llama-3.2-1B-Instruct-Q4_K_M.gguf",
             n_gpu_layers=-1, n_ctx=8000)