Add a build workflow on all platforms

.github/workflows/build.yaml

@@ -0,0 +1,51 @@
+name: Umami Build
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    types: [opened, synchronize]
+jobs:
+  build:
+    name: Build and Test
+    timeout-minutes: 15
+    runs-on: ${{ matrix.os }}
+    strategy:
+        matrix:
+          os: [ macos-latest, ubuntu-latest, windows-latest ]
+    # To use Remote Caching, uncomment the next lines and follow the steps below.
+    # env:
+    #  TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
+    #  TURBO_TEAM: ${{ vars.TURBO_TEAM }}
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      - name: Cache turbo build setup
+        uses: actions/cache@v4
+        with:
+          path: .turbo
+          key: ${{ runner.os }}-turbo-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-turbo-
+
+      - uses: pnpm/action-setup@v3
+        with:
+          version: 9.7.0
+
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v4
+        with:
+          node-version: 21
+          cache: 'pnpm'
+
+      - name: Install dependencies
+        run: pnpm install
+
+      - name: Build
+        run: pnpm build
+
+      - name: Test
+        run: pnpm test