Mise en place du frontend Angular (init, environments, proxy vers le backend)

apps/frontend/src/app/app.ts

@@ -0,0 +1,12 @@
+import { Component, signal } from '@angular/core';
+import { RouterOutlet } from '@angular/router';
+
+@Component({
+  imports: [RouterOutlet],
+  selector: 'app-root',
+  styleUrl: './app.scss',
+  templateUrl: './app.html',
+})
+export class App {
+  protected readonly title = signal('frontend');
+}