ci: add GitHub Actions workflow

Author: oniani1

.github/workflows/ci.yml

@@ -0,0 +1,41 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: queryguard
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+          cache-dependency-path: queryguard/pnpm-lock.yaml
+
+      - run: pnpm install --frozen-lockfile
+
+      - run: pnpm typecheck
+        name: Type check
+
+      - run: pnpm lint
+        name: Lint
+
+      - run: pnpm test
+        name: Unit tests (128)
+
+      - run: pnpm build
+        name: Build