ci: add GitHub Action CI workflow

.github/workflows/ci.yml

@@ -0,0 +1,44 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - '*'
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  run-ci:
+    name: Run Unit Tests, Lint, and Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Bun
+        uses: oven-sh/setup-bun@v1
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Lint
+        run: bun run lint
+
+      - name: Prettier
+        run: bun run prettier
+
+      - name: Typecheck
+        run: bun run typecheck
+
+      - name: Run tests
+        run: bun test
+
+      # - name: Run Jest tests
+      #   run: bun run test
+
+      - name: Build
+        run: bun run build