Add FastAPI app initialization in main.py

main.py

@@ -8,7 +8,8 @@ BASE_DIR = Path("/app")
 MODEL_DIR = BASE_DIR / "models"
 MODEL_NAME = "llama-2-7b-chat.q4_K_M.gguf"
 MODEL_PATH = MODEL_DIR / MODEL_NAME
-
+# Create FastAPI app
+app = FastAPI(title="LLM API Server")
 # Ensure model directory exists
 MODEL_DIR.mkdir(parents=True, exist_ok=True)
 # Model download URL