chore: add GitHub Actions workflow for Copilot setup steps

Author: tyler-dane

.github/workflows/copilot-setup-steps.yml

@@ -0,0 +1,34 @@
+name: "Copilot Setup Steps"
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+  pull_request:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+
+jobs:
+  copilot-setup-steps:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "yarn"
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile --network-timeout 300000
+
+      - name: Verify installation
+        run: |
+          echo "Node.js version: $(node --version)"
+          echo "Yarn version: $(yarn --version)"
+          echo "TypeScript version: $(yarn tsc --version)"