Add Frontend CI Lint Step and Test Script Stub

[aji70]

Task: Add Frontend CI Lint Step and Test Script Stub

Overview

The existing GitHub Actions workflow runs npm run build only. Add linting to CI and a test script placeholder so contributors catch issues early and the project is ready for Vitest/Playwright later.

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Goals

• Add npm run lint step to .github/workflows/frontend-ci.yml
• Add npm run test script (passes with --passWithNoTests or a single smoke test)
• Optionally add TypeScript check: tsc --noEmit
• Fail CI on lint errors; document how to fix locally

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Deliverables

• Updated frontend-ci.yml with lint (and optional typecheck) jobs
• package.json scripts: "test": "..."
• Optional: one smoke test proving CI test step runs
• README badge or CI section noting required checks

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Acceptance Criteria

• PRs fail when ESLint errors are introduced
• npm run lint and npm run build both pass on main
• CI completes in under 5 minutes on a typical PR
• Contributors see clear CI failure messages
• No secrets required in the workflow file

[Cjay-Cyber-2]

i would love to work on this