Add CI steps and bump node version

.github/actions/setup-node/action.yml

@@ -0,0 +1,28 @@
+name: Setup Node.js
+description: Setup Node.js with yarn and restore cached dependencies
+
+inputs:
+  restore-cache:
+    description: "Whether to restore node_modules cache"
+    required: false
+    default: "true"
+
+runs:
+  using: composite
+  steps:
+    - name: Enable corepack
+      shell: bash
+      run: corepack enable
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version-file: ".nvmrc"
+        cache: "yarn"
+
+    - name: Restore node_modules
+      if: inputs.restore-cache == 'true'
+      uses: actions/cache/restore@v4
+      with:
+        path: node_modules
+        key: node-modules-${{ hashFiles('yarn.lock') }}

.github/workflows/ci.yml

@@ -0,0 +1,71 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  install:
+    name: Install dependencies
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup node
+        uses: ./.github/actions/setup-node
+        with:
+          restore-cache: false
+
+      - name: Yarn install
+        run: yarn install --immutable
+
+      - name: Cache node_modules
+        uses: actions/cache/save@v4
+        with:
+          path: node_modules
+          key: node-modules-${{ hashFiles('yarn.lock') }}
+
+  format:
+    name: Format
+    needs: install
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup node
+        uses: ./.github/actions/setup-node
+
+      - name: Check formatting
+        run: yarn format
+
+  lint:
+    name: Lint
+    needs: install
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup node
+        uses: ./.github/actions/setup-node
+
+      - name: Run lint
+        run: yarn lint
+
+  build:
+    name: Build
+    needs: install
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup node
+        uses: ./.github/actions/setup-node
+
+      - name: Run build
+        run: yarn build

yarn.lock

@@ -1115,6 +1115,11 @@ __metadata:
   peerDependencies:
     react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
     react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
+  peerDependenciesMeta:
+    react:
+      optional: true
+    react-dom:
+      optional: true
   languageName: unknown
   linkType: soft