feat(.github): comment on i18n failure (#49746)

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

.github/workflows/node.js-tests.yml

@@ -218,3 +218,29 @@ jobs:
           CURRICULUM_LOCALE: ${{ matrix.locale }}
           CLIENT_LOCALE: ${{ matrix.locale }}
         run: pnpm test
+
+  failure-comment:
+    name: Comment on i18n Failure
+    needs: ['test', 'test-localization']
+    runs-on: ubuntu-20.04
+    if: ${{ always() && needs.test.result == 'success' && needs.test-localization.result == 'failure' }}
+    steps:
+      - uses: actions/github-script@98814c53be79b1d30f795b907e553d8679345975 # v6
+        with:
+          github-token: ${{ secrets.CAMPERBOT_NO_TRANSLATE }}
+          script: |
+            const isDev = await github.rest.teams.getMembershipForUserInOrg({
+              org: "freeCodeCamp",
+              team_slug: "dev-team",
+              username: context.payload.pull_request.user.login
+            }).catch(() => ({status: 404}));
+            if (context.payload.pull_request.user.login !== "camperbot" && isDev.status !== 200) {
+              github.rest.issues.createComment({
+                issue_number: context.issue.number,
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                body: "Hi,\n\nIt looks like the localization tests have failed. This is expected when there are significant curriculum changes in the English version.\n\nThis could mean a Crowdin sync is required to address the scenario. Please check with our staff developer team, either on [Discord](https://discord.gg/KVUmVXA) or our [forums](https://forum.freecodecamp.org). They will confirm and take over helping you through the PR.\n\nThanks for your understanding and contribution."
+              })
+            } else if (isDev.status === 200) {
+              core.setFailed('This PR appears to touch translated curriculum files, but since you are on the dev team there is no message.');
+            }