Add fetch + static server

Dockerfile

@@ -1,9 +1,9 @@
-FROM node:18-slim AS node_layer
+FROM node:18 AS node_layer
 
 # Build layer cho http-server
 RUN npm install -g http-server
 
-FROM python:3.9-slim
+FROM python:3.11
 
 # Tạo user không phải root (Hugging Face yêu cầu)
 RUN useradd -m -u 1000 user