add staging ios app build script

app-expo/scripts/ios-prebuild.sh

@@ -33,9 +33,17 @@ esac
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 cd "$ROOT"
 
-echo "==> Switching to .env.${ENV}"
+echo "==> Switching to env/${ENV} → .env"
 npm run use-env -- "$ENV"
 
+# Release Archive 时 NODE_ENV=production，Expo 会加载根目录 .env.production 并覆盖 .env
+for legacy in .env.production .env.staging .env.development; do
+  if [[ -f "$legacy" ]]; then
+    echo "::error::Found legacy $legacy — it overrides use-env on Release builds. Use app-expo/env/ templates only." >&2
+    exit 1
+  fi
+done
+
 echo "==> expo prebuild --platform ios --clean"
 npx expo prebuild --platform ios --clean