ci: add build job (#67)

Closes #66

Author: MrGreenTea

.github/workflows/build.yml

@@ -0,0 +1,21 @@
+name: build
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          cache: "pnpm"
+      - name: Install Node Dependencies
+        run: pnpm install
+      - run: pnpm run build