Dockerfile

# Dockerfile
FROM node:18-bullseye

# create app directory
WORKDIR /app

# copy package files first for caching
COPY package.json package-lock.json* /app/

# install dependencies
RUN npm install --production

# copy application code
COPY . /app

# ensure output dir exists
# ensure output dir exists and is writable by all users
RUN mkdir -p /app/output && chmod -R 777 /app/output


# expose the HF/streamlit default port
EXPOSE 7860

# ensure required files exist (optional)
# Place your logo.png and integrity_dashboard.png at repo root

CMD ["npm", "start"]