fix(ci): point CMS deep health check to correct api/health endpoint and improve check-http error formatting

.gitea/workflows/deploy.yml

@@ -428,7 +428,7 @@ jobs:
           echo "Waiting 10s for app to fully start..."
           sleep 10
           echo "Checking basic health..."
-          curl -sf "$DEPLOY_URL/health" || { echo "❌ Basic health check failed"; exit 1; }
+          curl -sf "$DEPLOY_URL/api/health" || { echo "❌ Basic health check failed"; exit 1; }
           echo "✅ Basic health OK"
 
       - name: 🌐 Core Smoke Tests (HTTP, API, Locale)