chore: add github actions for CI and release

.github/actions/setup/action.yml

@@ -0,0 +1,19 @@
+name: Setup
+description: Setup Bun, Node and install packages
+
+runs:
+  using: composite
+  steps:
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v1
+      with:
+        bun-version: latest
+
+    - name: Setup Node
+      uses: actions/setup-node@v4
+      with:
+        node-version: 20
+
+    - name: Install packages
+      shell: bash
+      run: bun install

.github/workflows/ci.yml

@@ -0,0 +1,59 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  format:
+    name: 💅 Format
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout branch
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Run format
+        run: bun run format:check
+
+  lint:
+    name: 🕵 Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout branch
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Run lint
+        run: bun run lint
+
+  typecheck:
+    name: ✅ Typecheck
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout branch
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Run typecheck
+        run: bun run typecheck
+
+  build:
+    name: 🧰 Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout branch
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Run build
+        run: bun run build

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - main
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout branch
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Create Release Pull Request or Publish to NPM
+        id: changesets
+        uses: changesets/action@v1
+        with:
+          publish: bun run release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}