fix(portal-shell): make 'nx test' run once by default, add watch configuration

The Angular 21 unit-test builder (@angular/build:unit-test) defaults
to watch mode. Without an explicit option, 'pnpm nx test portal-shell'
hangs on 'Waiting for task' indefinitely - unsuitable for CI and
surprising for ad-hoc invocations.

Pin watch=false as the default in the target options. Add a 'watch'
configuration so developers who want continuous test running can opt
in with 'pnpm nx test portal-shell --configuration=watch'. portal-bff
uses Jest which defaults to no-watch and needs no change.

apps/portal-bff-e2e/src/support/global-setup.ts

@@ -7,8 +7,8 @@ module.exports = async function () {
   // Start services that that the app needs to run (e.g. database, docker-compose, etc.).
   console.log('\nSetting up...\n');
 
-  const host = process.env.HOST ?? 'localhost';
+  const host = process.env['HOST'] ?? 'localhost';
-  const port = process.env.PORT ? Number(process.env.PORT) : 3000;
+  const port = process.env['PORT'] ? Number(process.env['PORT']) : 3000;
   await waitForPortOpen(port, { host });
 
   // Hint: Use `globalThis` to pass variables to global teardown.

apps/portal-bff-e2e/src/support/global-teardown.ts

@@ -4,7 +4,7 @@ import { killPort } from '@nx/node/utils';
 module.exports = async function () {
   // Put clean up logic here (e.g. stopping services, docker-compose, etc.).
   // Hint: `globalThis` is shared between setup and teardown.
-  const port = process.env.PORT ? Number(process.env.PORT) : 3000;
+  const port = process.env['PORT'] ? Number(process.env['PORT']) : 3000;
   await killPort(port);
   console.log(globalThis.__TEARDOWN_MESSAGE__);
 };

apps/portal-bff-e2e/src/support/test-setup.ts

@@ -3,7 +3,7 @@ import axios from 'axios';
 
 module.exports = async function () {
   // Configure axios for tests to use.
-  const host = process.env.HOST ?? 'localhost';
+  const host = process.env['HOST'] ?? 'localhost';
-  const port = process.env.PORT ?? '3000';
+  const port = process.env['PORT'] ?? '3000';
   axios.defaults.baseURL = `http://${host}:${port}`;
 };

apps/portal-bff/src/main.ts

@@ -18,7 +18,7 @@ async function bootstrap() {
 
   const globalPrefix = 'api';
   app.setGlobalPrefix(globalPrefix);
-  const port = process.env.PORT || 3000;
+  const port = process.env['PORT'] || 3000;
   await app.listen(port);
   Logger.log(`Application is running on: http://localhost:${port}/${globalPrefix}`);
 }

apps/portal-shell/project.json

@@ -64,7 +64,14 @@
     },
     "test": {
       "executor": "@angular/build:unit-test",
-      "options": {}
+      "options": {
+        "watch": false
+      },
+      "configurations": {
+        "watch": {
+          "watch": true
+        }
+      }
     },
     "serve-static": {
       "continuous": true,