Merge Feature/add dockerfile

[rugitter]

• Added new docker file

1. optimise pnpm install process
2. add docker-compose file
3. fix EOL error when build cross platform
4. ignore eslint during build to prevent build failure due to lint error

• Improve Dockerfile

1. Add appuser to run the app
2. Optimise runtime image in speed and size

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[Copilot]

Pull request overview

Adds containerization support for the Next.js frontend by introducing a production Dockerfile + docker-compose workflow, and adjusts Next.js build output to support a standalone runtime image.

Changes:

• Configure Next.js for output: 'standalone' and skip ESLint during next build.
• Add a new multi-stage production Dockerfile and a docker-compose.yml service.
• Add .gitattributes for LF line endings and update .dockerignore to exclude .next.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
next.config.ts	Enables standalone output and disables ESLint during builds.
docker-compose.yml	Defines a frontend service building the Docker image and exposing port 3000.
Dockerfile	Adds a multi-stage build producing a smaller non-root runtime image using Next standalone output.
.gitattributes	Enforces LF EOL normalization across platforms.
.dockerignore	Updates ignored build-context files, including .next/.

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