ci: add comprehensive lint and format checks to CI workflow

.github/workflows/ci.yml

@@ -34,6 +34,30 @@ jobs:
       - name: Run qlty code smells analysis
         run: qlty smells
 
+  lint-and-format:
+    name: Lint & Format
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Install dependencies
+        run: python -m pip install -U "jupyterlab>=4.0.0,<5"
+
+      - name: Install node dependencies
+        run: jlpm
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Run lint and format checks
+        run: jlpm run lint:check
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
   audit-prod:
     name: Audit - Production
     runs-on: ubuntu-latest