Upgraded all libraries, switched to npm, upgraded angular and jdk21

portal_client/README.md

@@ -1,12 +1,23 @@
-Portal Client
-==
-
-The portal_client contains all the client side html, javascript, and css files that will be presented to the user
-
-Yarn
-======
-Yarn is the the new package manager used with node.js in replacement of `npm` it uses the same package.json file. 
-
-To download a new client side library use the command `yarn add <package_name> --save` This will add the files to the `node_modules` library.
-Next include the appropriate file into the `assets.js` file inside `portal_client` to make sure it will be injected into the `index.html` file during run time.
-The `assets.js` file specifies all the vendor libraries that have to be included into the client code during build.
+# Portal client
+
+The portal UI is an Angular 22.1 standalone application built with Angular CLI and npm.
+
+## Development
+
+Use Node.js 24.15 or newer in the Node 24 release line and npm 12:
+
+```shell
+npm ci
+npm start
+```
+
+The development server serves the client locally. API and WebSocket requests target the Spring application under `/portal`.
+
+## Verification and production build
+
+```shell
+npm test
+npm run build
+```
+
+The production build is emitted to `dist`. Maven performs `npm ci`, runs the tests and build, then packages `dist` under `/portal/client/` in the Spring Boot application.