feat: enhance canvas and node components with error handling and retry logic

- Integrated retry logic for AI image generation to handle transient errors and improve user experience.
- Updated error categorization to provide more informative feedback based on different failure scenarios.
- Enhanced node components to display retry attempts and error messages, improving visibility during image generation failures.
- Refactored canvas and node components to include retry count in status updates, ensuring accurate tracking of generation attempts.

components/providers.tsx

@@ -9,6 +9,7 @@ import Link from "next/link";
 import { useRouter } from "next/navigation";
 
 import { authClient } from "@/lib/auth-client";
+import { Toaster } from "@/components/ui/sonner";
 
 const convex = new ConvexReactClient(process.env.NEXT_PUBLIC_CONVEX_URL!);
 
@@ -36,6 +37,7 @@ export function Providers({
           Link={Link}
         >
           {children}
+          <Toaster position="bottom-right" />
         </AuthUIProvider>
       </ConvexBetterAuthProvider>
     </ThemeProvider>