add amplify redploy github action with pull request trigger for testing

.github/workflows/amplify-redeploy.yml

@@ -0,0 +1,17 @@
+name: Redeploy AWS Amplify
+
+on:
+  schedule:
+    - cron: "0 14 * * *" # 10 AM ET (2 PM UTC)
+    - cron: "0 21 * * *" # 5 PM ET (9 PM UTC)
+  workflow_dispatch:
+  pull_request:
+
+jobs:
+  redeploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Trigger Amplify Redeploy via Webhook
+        run: |
+          curl -X POST -d {} "${{ secrets.AMPLIFY_WEBHOOK_URL }}" -H "Content-Type:application/json"