add CI (#384)

* add biome ci actions

* feat: add build and check workflow for Astro with Node.js support

* refactor: streamline Node.js setup in Astro CI workflow and remove unused pnpm matrix

.github/workflows/biome.yml

@@ -0,0 +1,20 @@
+name: Code quality
+
+on:
+  push:
+    branches: [ main ] # Adjust branches as needed
+  pull_request:
+    branches: [ main ] # Adjust branches as needed
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - name: Setup Biome
+        uses: biomejs/setup-biome@f382a98e582959e6aaac8e5f8b17b31749018780 # v2.5.0
+        with:
+          version: latest
+      - name: Run Biome
+        run: biome ci ./src --reporter=github