Update CI/CD for npm public registry publishing

- Added npm-publish.yml workflow for publishing to npm public registry
  - Triggers on release or manual workflow dispatch
  - Supports version bumping (patch, minor, major, prerelease)
  - Publishes to https://registry.npmjs.org/
  - Uses NPM_TOKEN secret for authentication
- Removed release.yml (old GitHub Packages workflow)
- Removed visual-testing.yml (Chromatic workflow - dependency removed)

Note: NPM_TOKEN secret must be configured in repository settings

Author: fergusbisset

.github/workflows/release.yml .github/workflows/npm-publish.yml.github/workflows/release.yml renamed to .github/workflows/npm-publish.yml

@@ -1,6 +1,8 @@
-name: Publish GitHub Package
+name: Publish to npm
 
 on:
+  release:
+    types: [published]
   workflow_dispatch:
     inputs:
       version:
@@ -18,60 +20,64 @@ on:
         type: string
 
 permissions:
-  contents: read
-  packages: write
+  contents: write
+  id-token: write
 
 jobs:
-  release:
+  publish:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v4
 
       - name: Setup Node
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v4
         with:
           node-version: 20
-          registry-url: https://npm.pkg.github.com
-          scope: '@fergusbisset'
+          registry-url: 'https://registry.npmjs.org'
 
-      - name: Install
+      - name: Install dependencies
         run: npm ci
 
       - name: Optionally bump version (manual dispatch only)
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.version != '' }}
         run: |
+          git config user.name github-actions
+          git config user.email [email protected]
           if [ "${{ inputs.version }}" = "prerelease" ]; then
             npm version prerelease --preid=${{ inputs.preid || 'alpha' }} -m "chore(release): %s"
           else
             npm version ${{ inputs.version }} -m "chore(release): %s"
           fi
 
-      - name: Build & Test
+      - name: Run tests
         run: |
           npm run lint
-          npm run verify:schema-macro
-          npm run verify:macro-parity
-          npm run build
+          npm run test:components
+          npm run test:ssr-components
+
+      - name: Build
+        run: npm run build
 
-      - name: Publish (GitHub Packages)
+      - name: Publish to npm
         env:
-          NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
         run: |
           if [ -n "${{ inputs.tag }}" ] && [ "${{ inputs.tag }}" != "latest" ]; then
             npm publish --access public --tag ${{ inputs.tag }}
           else
             npm publish --access public
           fi
 
-      - name: Create Git Tag (when version bumped)
-        if: ${{ inputs.version != '' }}
+      - name: Push version bump (when version bumped)
+        if: ${{ github.event_name == 'workflow_dispatch' && inputs.version != '' }}
         run: |
           VERSION=$(node -p "require('./package.json').version")
-          git config user.name github-actions
-          git config user.email [email protected]
+          git push origin HEAD
           git tag v$VERSION
           git push origin v$VERSION
 
       - name: Summary
-        run: echo "Published @fergusbisset/nhs-fdp-design-system@$(node -p "require('./package.json').version") to GitHub Packages" >> $GITHUB_STEP_SUMMARY
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          echo "Published @nhsdigital/nhs-fdp-design-system@$VERSION to npm" >> $GITHUB_STEP_SUMMARY