Optimize docker image for production

[ukashazia]

What kind of change does this PR introduce?

• use cache layers and multiple build stages to reduce image size by half (from ~8Gib to ~4Gib)
• reduce image build time of successive builds
• replace Dockerfile.dev with Dockerfile in relevant files

Why was this change needed?

• building container image takes a while and any change in source code invalidated the node dependency caches
• image took more than 8 Gib on disk

Checklist:

Put a "X" in the boxes below to indicate you have followed the checklist;

• [X ] I have read the CONTRIBUTING guide.
• [ X] I checked that there were not similar issues or PRs already open for this.
• [X ] This PR fixes just ONE issue (do not include multiple issues or types of change in the same PR) For example, don't try and fix a UI issue and include new dependencies in the same PR.

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[Copilot]

Pull Request Overview

This PR optimizes the Docker build process for production by implementing multi-stage builds and build caching to reduce image size from ~8GB to ~4GB and improve build times. The changes replace the previous Dockerfile.dev with an optimized production Dockerfile across all build workflows.

• Implements multi-stage Docker build with separate stages for dependencies, build, production dependencies, and runtime
• Adds build caching layers and optimizes package installation to reduce successive build times
• Updates all CI/CD workflows and build scripts to use the new optimized Dockerfile

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
package.json	Moves prisma from devDependencies to dependencies for production builds
Dockerfile	New multi-stage production-optimized Dockerfile with caching and cleanup
Jenkinsfile	Updates Docker build command to use new Dockerfile
.github/workflows/pr-docker-build.yml	Updates PR workflow to use optimized Dockerfile
.github/workflows/build-containers.yml	Updates container build workflow to use new Dockerfile
.dockerignore	Comprehensive ignore rules to reduce build context size

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

[Copilot]

Copying the entire source code (COPY . .) before installing production dependencies defeats the purpose of layer caching. Consider copying only package files first, then installing dependencies, then copying source code.

Suggested change

	COPY . .
	COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
	COPY apps/*/package.json ./apps/
	COPY libraries/*/package.json ./libraries/

[egelhaus]

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[nevo-david]

Please elaborate on the changes, also we can't change Dockerfile.dev to Dockerfile