Add remote CI validation for pull requests

[Yuto-24]

Summary

Pull requests currently do not appear to have remote CI validation. During review of PR #30, the head commit had no associated workflow runs, so verification relied on local command output.

Add a minimal GitHub Actions workflow so PRs can be validated remotely before merge.

Motivation

For dependency/security remediation PRs, local validation alone is easy to miss in review. At minimum, PRs should show a remote check confirming that install and tests pass.

Initial scope

Add a GitHub Actions workflow that runs on pull requests targeting master.

Minimum commands:

npm ci
npm test

Suggested workflow file:

.github/workflows/ci.yml

Suggested job shape:

• runner: ubuntu-latest

• Node.js version: choose and pin one supported project version

• steps:

  • checkout
  • setup-node with npm cache
  • npm ci
  • npm test

Out of scope for the first CI workflow

Do not require npm run build as a blocking check yet.

npm run build currently fails during the webpack step with a likely gas-webpack-plugin / webpack compatibility issue. That build failure is tracked separately and should be fixed before adding build as a required CI gate.

Acceptance criteria

• A PR against master triggers a GitHub Actions workflow.
• The workflow runs npm ci successfully.
• The workflow runs npm test successfully.
• PR checks show the CI result on GitHub.
• npm run build is not required in this initial CI workflow.

Follow-up

After the webpack build issue is fixed, extend CI to include:

npm run build

At that point, build can be considered for a required status check.