chore: import upstream snapshot with attribution

.github/workflows/i18n-validate-prs.yml

@@ -0,0 +1,61 @@
+name: i18n - Curriculum PR Validation
+on:
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.event.workflow_run.head_branch || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  ci:
+    name: Validate i18n Builds
+    # run only on PRs that camperbot opens with title that matches the curriculum sync
+    if: ${{ github.event.pull_request.user.login == 'camperbot' && contains(github.event.pull_request.title, 'chore(i18n,learn)') }}
+    runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        node-version: [24]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+        with:
+          submodules: 'recursive'
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@91ab88e2619ed1f46221f0ba42d1492c02baf788 # v6
+        id: pnpm-install
+        with:
+          run_install: false
+
+      - name: Set freeCodeCamp Environment Variables
+        run: |
+          sed '/^[[:space:]]*#/d; /^$/d' sample.env >> $GITHUB_ENV
+
+      - name: Install Dependencies
+        run: pnpm install
+
+      - name: Validate Challenge Files
+        id: validate
+        run: pnpm run audit-challenges
+
+      - name: Create Comment
+        # Run if the validate challenge files step fails, specifically. Note that we need the failure() call for this step to trigger if the action fails.
+        if: ${{ failure() && steps.validate.conclusion == 'failure' }}
+        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9
+        with:
+          github-token: ${{secrets.CAMPERBOT_NO_TRANSLATE}}
+          script: |
+            await github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: "Hey @freecodecamp/i18n, it looks like we have new English curriculum files that need to be translated."
+            })