Fix media uploads/rendering in production and avoid catalog wipe on boot

Dockerfile

@@ -4,7 +4,7 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
     PORT=7860 \
-    MEDIA_ROOT=/data/media
+    MEDIA_ROOT=/home/user/app/media
 
 # Install required system packages for OpenCV
 RUN apt-get update && apt-get install -y --no-install-recommends \
@@ -34,7 +34,7 @@ RUN pip install --upgrade pip && \
 COPY --chown=user . .
 
 # Create necessary directories with proper user permissions
-RUN mkdir -p $HOME/app/staticfiles $HOME/app/media /data/media
+RUN mkdir -p $HOME/app/staticfiles $HOME/app/media
 
 EXPOSE 7860