Add CI for supported Node.js versions

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+  workflow_dispatch:
+
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Node.js ${{ matrix.node-version }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version:
+          - 22
+          - 24
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v7
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v7
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+
+      - name: Verify public npm registry
+        run: |
+          test "$(npm config get registry)" = "https://registry.npmjs.org/"
+          ! grep -R "bnpm.byted.org" --include="package-lock.json" .
+
+      - name: Install dependencies
+        run: npm ci --ignore-scripts
+
+      - name: Test
+        run: npm test -- --runInBand
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Build
+        run: npm run build
+
+      - name: Check package contents
+        run: npm pack --dry-run

.npmrc

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+registry=https://registry.npmjs.org/

ssr-test/.npmrc

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+registry=https://registry.npmjs.org/