updated backend imports for clarity, enhanced sync logic, and expanded proxy routes in frontend

frontend/vite.config.ts

@@ -23,7 +23,11 @@ export default defineConfig({
   server: {
     proxy: {
       '/news': 'http://localhost:8000',
-      '/meta': 'http://localhost:8000'
+      '/meta': 'http://localhost:8000',
+      '/feeds': 'http://localhost:8000',
+      '/model': 'http://localhost:8000',
+      '/sync': 'http://localhost:8000',
+      '/settings': 'http://localhost:8000'
     }
   },
 });