feat: add suggestion feature

apps/frontend/src/app/components/header/header.component.ts

@@ -32,9 +32,13 @@ import { AuthService } from '../../services/auth.service';
         <div class="auth-section">
           @if (authService.user(); as user) {
             <span class="welcome">Welcome, {{ user.username }}!</span>
+            @if (!user.isAdmin) {
+              <a routerLink="/my-suggestions" class="user-link">My Suggestions</a>
+            }
             @if (user.isAdmin) {
               <a routerLink="/admin/users" class="admin-badge">Users</a>
               <a routerLink="/admin/audit" class="admin-badge">Audit</a>
+              <a routerLink="/admin/suggestions" class="admin-badge">Suggestions</a>
             }
             <button (click)="logout()" class="btn btn-secondary">Logout</button>
           } @else {
@@ -122,6 +126,20 @@ import { AuthService } from '../../services/auth.service';
       transform: translateY(-2px);
     }
 
+    .user-link {
+      color: var(--witch-lavender);
+      text-decoration: none;
+      font-size: 0.9rem;
+      padding: 0.25rem 0.5rem;
+      border-radius: 4px;
+      transition: all 0.3s;
+    }
+
+    .user-link:hover {
+      background-color: var(--witch-plum);
+      color: var(--witch-moon);
+    }
+
     .btn {
       padding: 0.5rem 1rem;
       border: none;