TooltipProvider agregado en App.tsx envolviendo todo el contenido (dentro de AuthProvider, fuera de RouterProvider/Toaster), sin tocar nada más.

src/App.tsx

@@ -2,12 +2,15 @@ import { RouterProvider } from '@tanstack/react-router'
 import { router } from './router'
 import { Toaster } from '@/components/ui/toaster'
 import { AuthProvider } from '@/auth/AuthContext'
+import { TooltipProvider } from '@/components/ui/tooltip'
 
 export function App() {
   return (
     <AuthProvider>
-      <RouterProvider router={router} />
-      <Toaster />
+      <TooltipProvider>
+        <RouterProvider router={router} />
+        <Toaster />
+      </TooltipProvider>
     </AuthProvider>
   )
 }