build: add github build action

.github/workflows/build.yaml

@@ -0,0 +1,22 @@
+name: Build project
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: "22"
+      - name: Setup pnpm
+        run: npm install -g pnpm
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
+      - name: Build
+        run: pnpm run build