feat(dashboard): PaywallBanner + DashboardPage conditionnel (Sprint 1 étape 5)

src/app/router.tsx

@@ -4,22 +4,12 @@ import { Navigate, Routes, Route } from 'react-router-dom'
 import { LoginPage } from '@/features/auth/pages/LoginPage'
 import { RegisterPage } from '@/features/auth/pages/RegisterPage'
 import { ProtectedRoute } from '@/features/auth/components/ProtectedRoute'
+import { DashboardPage } from '@/features/dashboard/pages/DashboardPage'
 
 const DesignSystemPage = import.meta.env.DEV
   ? React.lazy(() => import('@/features/design-system/DesignSystemPage'))
   : () => null
 
-function DashboardStub() {
-  return (
-    <main className="min-h-screen bg-canvas p-6">
-      <h1 className="text-2xl font-semibold text-ink-1">Dashboard — stub</h1>
-      <p className="mt-2 text-sm text-ink-3">
-        Cette vue sera remplacée par DashboardPage au prochain lot du Sprint 1.
-      </p>
-    </main>
-  )
-}
-
 export function AppRouter() {
   return (
     <Routes>
@@ -30,7 +20,7 @@ export function AppRouter() {
         path="/dashboard"
         element={
           <ProtectedRoute>
-            <DashboardStub />
+            <DashboardPage />
           </ProtectedRoute>
         }
       />