ci: add basic ci pipeline

Author: tharropoulos

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          cache: yarn
+
+      - name: Enable Corepack
+        run: corepack enable
+
+      - name: Install
+        run: yarn install --immutable
+
+      - name: Build
+        run: yarn build
+
+      - name: Typecheck
+        run: yarn test:types
+
+      - name: Unit Tests
+        run: yarn test --run