Update app.py

app.py

@@ -1,17 +1,13 @@
 import os
 import sys
-import gradio as gr
 
-# Ensure current directory is importable
 sys.path.append(os.path.dirname(__file__))
 
-# HF must use transformers (NO Ollama)
-os.environ["LOCAL_LLM_PROVIDER"] = "transformers"
-os.environ["HF_LLM_MODEL"] = "TinyLlama/TinyLlama-1.1B-Chat-v1.0"
+os.environ.setdefault("LOCAL_LLM_PROVIDER", "transformers")
+os.environ.setdefault("HF_LLM_MODEL", "TinyLlama/TinyLlama-1.1B-Chat-v1.0")
+os.environ.setdefault("DB_XLSX", "database.xlsx")
+os.environ.setdefault("EMB_CACHE", "treatment_embeddings.pkl")
 
 from gradio_new_rag_app import make_app
 
 demo = make_app()
-
-# IMPORTANT: DO NOT call demo.launch()
-# HF Spaces will serve `demo` automatically