UI5 Middleware Approuter

Middleware for ui5-server that enables local development against SAP Cloud Foundry or XS Advanced destinations via the @sap/approuter. Version 3.9.0 requires @ui5/cli@3.0.0+ (specVersion 3.0). Community-maintained under the ui5-ecosystem-showcase organization. Provides local proxy to backend services defined in xs-app.json, with support for BTP services, authentication, content rewriting, and custom extensions. Alternatives include direct http-proxy-middleware usage, but this package integrates seamlessly with the UI5 tooling lifecycle.