feat: entire application

src/navigation/navigation.service.ts

@@ -0,0 +1,38 @@
+import { Injectable } from '@nestjs/common';
+import { DiscoveryService, MetadataScanner, Reflector } from '@nestjs/core';
+
+export interface NavItem {
+  path: string;
+  label: string;
+  active: boolean;
+}
+
+@Injectable()
+export class NavigationService {
+  constructor(
+    private readonly discovery: DiscoveryService,
+    private readonly metadataScanner: MetadataScanner,
+    private readonly reflector: Reflector,
+  ) {}
+
+  private isGetMethod(handler: (...args: any[]) => any): boolean {
+    return Reflect.getMetadata('method', handler) === 'GET';
+  }
+
+  getNavigationItems(currentPath: string = '/'): NavItem[] {
+    const navItems: NavItem[] = [
+      {
+        path: '/',
+        label: 'Home',
+        active: currentPath === '/',
+      },
+      {
+        path: '/cats',
+        label: 'Cats',
+        active: currentPath === '/cats',
+      },
+    ];
+
+    return navItems;
+  }
+}