05. PNPM Workspaces, Monorepos & CI/CD Pipelines

# .github/workflows/ci.yml: Multi-OS PNPM Matrix Pipeline
name: CI & Quality Gate
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
jobs:
  validate:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [22.x, 24.x]
    steps:
      - uses: actions/checkout@v4
      - uses: pnpm/action-setup@v4
        with:
          version: 10.x.x
          run_install: false
      - name: Setup Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: 'pnpm'
      - name: Install Dependencies (Frozen Lockfile)
        run: pnpm install --frozen-lockfile
      - name: Run Type Check & Diagnostics
        run: pnpm check
      - name: Lint Codebase
        run: pnpm lint
      - name: Static Build & Prerender
        run: pnpm build