add initial Angular components, services, and routing setup

client/src/app/pages/home/home.component.html

@@ -0,0 +1,13 @@
+<div class="home-container">
+  @if (getUser(); as user) {
+    <h1>Welcome, {{ user.firstName }}!</h1>
+    <p>What would you like to do today?</p>
+  } @else {
+    <h1>Welcome to the demo</h1>
+    <p>Create an account or sign in to get started.</p>
+    <div class="home-actions">
+      <button mat-flat-button [routerLink]="'/login'">Login</button>
+      <button mat-raised-button [routerLink]="'/register'">Sign Up</button>
+    </div>
+  }
+</div>