Add basic verify step

.github/workflows/ci.yml

@@ -8,4 +8,19 @@ jobs:
       - uses: actions/checkout@v1
       - run: |
           cp .env-example .env
-          docker compose up --build
+          docker compose up --build -d
+
+      - name: Make sure we frontend responds
+        run: |
+          SUCCESS=0
+          
+          for try in {1..3}; do
+            status_code=$(curl --write-out %{http_code} --silent --output /dev/null http://localhost:3000)
+            if [[ "$status_code" -eq 200 ]] ; then
+                SUCCESS=1
+                break
+            else
+                echo "Attempt $try failed with status code $status_code"
+            fi
+            sleep 1
+          done