feat: implement configuration management and enhance user registration flow

k-tv-frontend/app/providers.tsx

@@ -4,6 +4,7 @@ import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { ReactQueryDevtools } from "@tanstack/react-query-devtools";
 import { useState } from "react";
 import { AuthProvider } from "@/context/auth-context";
+import { Toaster } from "@/components/ui/sonner";
 
 export function Providers({ children }: { children: React.ReactNode }) {
   const [queryClient] = useState(
@@ -21,6 +22,7 @@ export function Providers({ children }: { children: React.ReactNode }) {
     <AuthProvider>
       <QueryClientProvider client={queryClient}>
         {children}
+        <Toaster position="bottom-right" richColors />
         <ReactQueryDevtools initialIsOpen={false} />
       </QueryClientProvider>
     </AuthProvider>