Added GitHub Actions

.github/workflows/build.yaml

@@ -0,0 +1,44 @@
+name: Build checks
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  subscript:
+    name: Subscript
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 24
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Format check
+        run: npm run format:check
+
+      - name: Test
+        run: npm run test

package.json

@@ -10,6 +10,7 @@
     "dev": "turbo run dev",
     "lint": "oxlint .",
     "format": "oxfmt .",
+    "format:check": "oxfmt . --check",
     "typecheck": "turbo run typecheck",
     "test": "turbo run test",
     "changeset": "turbo run typecheck lint format build test && changeset",