[ci] Complete implementation of safe-to-fail CI steps (#5210)

* [ci] Make Playwright deploy step safe to fail

Add continue-on-error: true to Deploy to Cloudflare Pages step to prevent
Cloudflare API issues from blocking essential testing processes.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* [ci] Make lint-and-format comment steps safe to fail

Add continue-on-error: true to PR comment steps in lint workflow:
- Comment on PR about auto-fix (line 63)
- Comment on PR about manual fix needed (line 76)

This prevents GitHub API permission errors from blocking
essential linting processes while maintaining comment functionality.

---------

Co-authored-by: Claude <noreply@anthropic.com>

.github/workflows/lint-and-format.yaml

@@ -60,6 +60,7 @@ jobs:
 
       - name: Comment on PR about auto-fix
         if: steps.verify-changed-files.outputs.changed == 'true' && github.event.pull_request.head.repo.full_name == github.repository
+        continue-on-error: true
         uses: actions/github-script@v7
         with:
           script: |
@@ -72,6 +73,7 @@ jobs:
 
       - name: Comment on PR about manual fix needed
         if: steps.verify-changed-files.outputs.changed == 'true' && github.event.pull_request.head.repo.full_name != github.repository
+        continue-on-error: true
         uses: actions/github-script@v7
         with:
           script: |

.github/workflows/test-ui.yaml

@@ -182,6 +182,7 @@ jobs:
       - name: Deploy to Cloudflare Pages (${{ matrix.browser }})
         id: cloudflare-deploy
         if: always()
+        continue-on-error: true
         run: |
           # Retry logic for wrangler deploy (3 attempts)
           RETRY_COUNT=0