Update Dockerfile

Dockerfile

@@ -1,4 +1,3 @@
-
 # --- Stage 1: Build React frontend ---
 FROM node:20-alpine AS frontend
 WORKDIR /app/frontend
@@ -15,9 +14,14 @@ FROM nvidia/cuda:12.1.1-cudnn8-runtime-ubuntu22.04 AS backend
 ENV DEBIAN_FRONTEND=noninteractive             PYTHONDONTWRITEBYTECODE=1             PYTHONUNBUFFERED=1             PIP_NO_CACHE_DIR=1
 
 ENV HF_HOME=/app/.cache/huggingface
-ENV TRANSFORMERS_CACHE=/app/.cache/huggingface/transformers
 
-RUN mkdir -p /app/.cache/huggingface
+RUN useradd -m appuser
+# Create cache directory and set permissions before switching
+RUN mkdir -p /app/.cache/huggingface/transformers && \
+    chown -R appuser:appuser /app/.cache
+
+# Switch to non-root user
+USER appuser
 # Install Python and system deps
 RUN apt-get update && apt-get install -y --no-install-recommends             python3 python3-pip python3-venv git &&             rm -rf /var/lib/apt/lists/*