WIP: NPM CI & Testing

.github/workflows/frontend.node.js.yml

@@ -8,16 +8,20 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./frontend/
     strategy:
       matrix:
-        node-version: [18.x, 20.x, 22.x]
+        node-version: [20.x]
     steps:
     - uses: actions/checkout@v4
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
+        cache-dependency-path: './frontend/package-lock.json'
     - run: npm ci
     - run: npm run build --if-present
     - run: npm test