ci: setup workflow to lint and typecheck (#17)

.github/actions/setup/action.yml

@@ -0,0 +1,20 @@
+name: "Setup"
+description: "Setup Node.js and pnpm and install dependencies"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Setup pnpm # by default it uses the version set in the package.json as packageManager
+      uses: pnpm/action-setup@v4
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version-file: ".nvmrc"
+        cache: "pnpm"
+
+    - name: Install dependencies
+      shell: bash
+      env:
+        HUSKY: "0"
+      run: pnpm install --frozen-lockfile

.github/workflows/lint-and-typecheck.yml

@@ -0,0 +1,34 @@
+name: Lint and Typecheck
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Lint
+        run: pnpm lint
+
+  typecheck:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup
+        uses: ./.github/actions/setup
+
+      - name: Typecheck
+        run: pnpm typecheck