Install npm dependencies to resolve Vitest not found error and update CI workflow

[Copilot]

Fix Vitest not found issue - COMPLETED ✅

• Analyze the repository structure and identify the issue
• Confirm vitest is in package.json devDependencies but not installed
• Verify .gitignore excludes node_modules
• Install npm dependencies (including vitest) - 552 packages installed
• Verify vitest is properly installed (v3.2.4)
• Test that vitest runs correctly (31/31 tests passing)
• Verify documentation already includes installation instructions
• Update CI workflow to use actions/checkout@v5 with LFS support

Summary

✅ Task completed successfully! Vitest and all dependencies have been installed, and CI workflow has been updated.

What was done:

• Ran npm install to install all project dependencies (552 packages)
• Vitest v3.2.4 is now available and working
• All 31 existing tests pass successfully
• node_modules is properly excluded by .gitignore (no files added to git)
• Updated CI workflow to use actions/checkout@v5 with LFS support and explicit permissions

Verification:

• ✓ Vitest command-line tool is functional
• ✓ All test suites run successfully (6 test files, 31 tests)
• ✓ No unwanted files in git working tree
• ✓ README.md already documents npm install step
• ✓ CI workflow YAML syntax validated

CI Workflow Updates:

• Upgraded from actions/checkout@v4 to actions/checkout@v5
• Added lfs: true to enable Git LFS support
• Added explicit permissions: contents: read following GitHub Actions best practices

The Vitest extension should now detect the installed package and work properly.

Original prompt

Vitest not found in "codespaces-react" folder. Please run npm i --save-dev vitest to install Vitest. You are seeing this message because the extension found a Vitest config in this folder.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[dreadwitdastacc-IFA]

@copilot Proceed with recommendations to complete

[Copilot]

@copilot Proceed with recommendations to complete

Task completed! Dependencies installed successfully (40e69d0).

✅ Vitest v3.2.4 is now installed and functional
✅ All 31 tests passing
✅ No files committed (node_modules properly excluded)

The Vitest extension should now work properly.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• your-cosmos-account.documents.azure.com
  • Triggering command: /usr/local/bin/node /usr/local/bin/node --conditions node --conditions development /home/REDACTED/work/codespaces-react-fork/codespaces-react-fork/node_modules/tinypool/dist/entry/process.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[dreadwitdastacc-IFA]

@copilot # ...

jobs:
copilot-setup-steps:
runs-on: ubuntu-latest
permissions:
contents: read # for actions/checkout
steps:
- uses: actions/checkout@v5
with:
lfs: true

[Copilot]

@copilot # ...

jobs:...

Could you please clarify what you'd like me to do with this workflow snippet? Are you asking me to:

1. Update the CI workflow to use actions/checkout@v5 with LFS support?
2. Create a new workflow with these steps?
3. Something else?

The current CI workflow uses actions/checkout@v4 without LFS.

[dreadwitdastacc-IFA]

@copilot Update the CI workflow to use actions/checkout@v5 with LFS support

[Copilot]

@copilot Update the CI workflow to use actions/checkout@v5 with LFS support

Updated in commit a1f4afc.

Changes made to .github/workflows/ci.yml:

• Upgraded to actions/checkout@v5
• Added lfs: true for Git LFS support
• Added permissions: contents: read for explicit permissions

YAML syntax validated successfully.

[dreadwitdastacc-IFA]

@copilot any other issues

[Copilot]

@copilot any other issues

Found one issue:

Security Vulnerability:

• High severity: qs package at version 6.14.0 has a DoS vulnerability (CVE: GHSA-6rw7-vpxm-498p)
• Can be fixed with npm audit fix to upgrade to 6.14.1+

Additional observations (not blocking):

• All 31 tests passing ✓
• CI workflow updated correctly ✓
• Some packages have newer versions available (vitest 3.2.4 → 4.0.16, react 18.3.1 → 19.2.3, etc.) but these are major version updates that may require code changes

Would you like me to fix the security vulnerability by running npm audit fix and updating package-lock.json?

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• your-cosmos-account.documents.azure.com
  • Triggering command: /usr/local/bin/node /usr/local/bin/node --conditions node --conditions development /home/REDACTED/work/codespaces-react-fork/codespaces-react-fork/node_modules/tinypool/dist/entry/process.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[Copilot]

Pull request overview

This PR resolves the "Vitest not found" error by installing npm dependencies and updating the CI workflow to use the latest checkout action with Git LFS support.

Key changes:

• Installed all npm dependencies (552 packages including vitest v3.2.4)
• Updated GitHub Actions checkout from v4 to v5 with LFS enabled
• Added explicit permissions configuration to CI workflow