Use AWS Amplify to deploy PRs

[jpzwarte]

Closes #3094

Changes

Storybook (storybook.yml)

• Replace Chromatic/existing deployment with AWS Amplify for PR previews
• Deploy PR builds to storybook-{PR number} branches on Amplify
• Deploy main branch pushes to the main Amplify branch
• Clean up Amplify branch when PR is closed
• Remove secrets from env block; reference secrets directly in steps

Website (website.yml)

• Replace Azure Static Web Apps with AWS Amplify for PR previews
• Deploy PR builds to website-{PR number} branches on Amplify
• Clean up Amplify branch when PR is closed
• Keep GitHub Pages deployment for production (main push)

Shared PR comment

• Both Storybook and Website workflows now share a single PR comment (### 🕸 Preview deploys)
• Each workflow preserves the other's line item when updating the comment (using edit-mode: replace with body reconstruction)

Housekeeping (all workflows)

• Upgrade Node.js from 22 → 24 across all workflows
• Remove unused CHROMATIC_PROJECT_TOKEN from ci.yml env
• Remove unused FIGMA_TOKEN from ci.yml, chromatic.yml, and release.yml env
• Consistent quote style for branch patterns in chromatic.yml and ci.yml
• Minor formatting cleanup in ci.yml

New secrets required

• AWS_ACCESS_KEY_ID
• AWS_SECRET_ACCESS_KEY
• AWS_REGION
• AWS_AMPLIFY_APP_ID

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[github-actions]

🕸 Website preview

You can view a preview here (commit 7c0ee54fcd33b2a1f2c6a877c1377fbd27f7787b).

[Copilot]

Pull request overview

This PR updates the Storybook GitHub Actions workflow to deploy Storybook previews to AWS Amplify (including per-PR preview URLs) and to clean up Amplify branches when PRs close.

Changes:

• Replaces Azure Static Web Apps deployment with an AWS Amplify deployment flow (create branch/deployment, upload ZIP, start deployment).
• Posts the Amplify preview URL back to the pull request as a comment.
• Updates the cleanup job to delete the corresponding Amplify branch on PR close.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 4 comments.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 5 comments.

[github-actions]

🕸 Storybook preview

You can view a preview here (commit 7c0ee54fcd33b2a1f2c6a877c1377fbd27f7787b).

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.

Comments suppressed due to low confidence (1)

.github/workflows/website.yml:65

• This workflow still deploys PR previews (and cleanup) via Azure Static Web Apps. Since this PR is titled "Use AWS Amplify to deploy PRs" and closes #3094 (which aims to move away from Azure preview environment limits), consider migrating the Website preview job to Amplify as well (or update the PR scope/title/issue closure so it doesn't imply the Website has been migrated).

          node-version: 24
          cache: 'yarn'
      - run: yarn install --immutable
      - run: NODE_ENV=production yarn website
      - uses: azure/static-web-apps-deploy@v1

[github-actions]

🕸 Preview deploys

• Storybook: https://storybook-3133.d1h4uynwy72040.amplifyapp.com
• Website: https://website-3133.d1h4uynwy72040.amplifyapp.com

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 6 comments.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.