Issue for this PR

PRs did not produce a downloadable web client build, so reviewers had no direct way to pull the built app artifact and test it locally.

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Adds a dedicated GitHub Actions workflow that builds the web client on pull requests and uploads the built output as an artifact.

• Workflow

  • adds .github/workflows/web-client-artifact.yml
  • runs on pull_request and workflow_dispatch
  • cancels superseded runs for the same PR/ref

• Build target

  • uses the existing Bun setup action
  • builds the existing web client package at packages/app

• Artifact output

  • uploads packages/app/dist
  • names artifacts per commit/run attempt so each PR run is easy to identify
  • retains artifacts for 7 days

- name: Build web client
  run: bun --cwd packages/app build

- name: Upload web client artifact
  uses: actions/upload-artifact@v4
  with:
    name: web-client-${{ github.sha }}-${{ github.run_attempt }}
    path: packages/app/dist

How did you verify your code works?

Validated the workflow YAML parses correctly and aligned the build target/output with the existing app package scripts and CI usage of packages/app.

Screenshots / recordings

If this is a UI change, please include a screenshot or recording.

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

If you do not follow this template your PR will be automatically rejected.