Add GitHub Action

Author: forshtat

.github/workflows/test.yml

@@ -0,0 +1,23 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '25.2.1'
+          cache: 'yarn'
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+      - name: Run "yarn build"
+        run: yarn build