fix: Update CI workflow to use npm ci with proper build step

.github/workflows/ci.yml

@@ -1,3 +1,5 @@
+name: CI
+
 on:
   push:
     branches: [main]
@@ -9,17 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-
       - uses: actions/setup-node@v4
         with:
           node-version: '20'
           cache: 'npm'
-
       - name: Install dependencies
         run: npm ci
-
       - name: Build
         run: npm run build
-
       - name: Run tests
         run: npm test