Load upload dir from ENV

Containerfile

@@ -8,8 +8,10 @@ COPY . .
 RUN npm run build
 
 FROM node:21-alpine
-USER node:node
 WORKDIR /app
+RUN chown -R node:node /app
+USER node:node
+COPY ./container/entrypoint.sh /entrypoint.sh
 COPY package.json .
 COPY --from=builder /app/build ./build
-CMD ["node", "./build/index.js"]
+ENTRYPOINT ["sh", "/entrypoint.sh"]