add validate workflow

.github/workflows/validate.yml

@@ -0,0 +1,65 @@
+name: Validate
+on:
+  push:
+    branches:
+      - "**" # all branches
+      - "!main"
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  typecheck:
+    name: Typecheck
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          registry-url: https://npm.pkg.github.com
+      - name: NPM Install
+        run: npm ci --ignore-scripts
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.GWM_GH_TOKEN}}
+      - name: Build
+        run: npm run build
+      - name: Check types...
+        run: npm run typecheck
+
+  format:
+    name: Format
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          registry-url: https://npm.pkg.github.com
+      - name: NPM Install
+        run: npm ci --ignore-scripts
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.GWM_GH_TOKEN}}
+      - name: Format...
+        run: npm run format
+
+      - name: Commit and push changes (if any)
+        uses: stefanzweifel/git-auto-commit-action@v4.2.0
+        id: auto_commit_action
+        with:
+          commit_user_name: seambot
+          commit_user_email: devops@getseam.com
+          commit_author: Seam Bot <devops@getseam.com>
+          commit_message: ci - format code
+
+      - name: Success
+        if: steps.auto_commit_action.outputs.changes_detected == 'false'
+        run: echo "Format check... PASS!"
+
+      - name: Fail
+        if: steps.auto_commit_action.outputs.changes_detected == 'true'
+        run: echo "Fixed formatting, and pushed changes" && exit 1