BULL-3225-better-startup

• Adds a startup docker service.
• Provides a way to ensure npm install is run before anything else is done.
• Unwraps the node_modules from the ui/api container build process.

docker/Dockerfile.node-be.dev

-FROM node:20.11
-
-RUN mkdir -p /app && chown node:node /app
-WORKDIR /app
-
-USER node
-
-# Copy only package files to leverage Docker caching
-COPY --chown=node:node ./xx_project_name_xx-api/package*.json ./
-
-# install dependencies
-RUN if test -f package-lock.json ; then npm ci ; else npm i ; fi
-
-EXPOSE 8000
-
-# Default command (can be overridden by docker-compose)
-CMD ["npm", "run", "dev"]