feat(sprint-0.5-bis): AppLayout + primitives UI + refonte pages

- AppLayout (sidebar fixe, drawer mobile, BottomNav)
- MobileHeader sticky + Sidebar avec verrouillage hasAccess()
- Primitives src/shared/ui/ : Button, Card, Badge
- SimulationPage + DashboardPage : suppression headers internes
- TaskSelector : Card interactive + Badge EE/EO + eyebrow
- router.tsx : layout routes + ComingSoon inline

src/features/simulations/pages/SimulationPage.tsx

@@ -14,9 +14,7 @@ import { useEffect } from 'react'
 import { useNavigate } from 'react-router-dom'
 import { useQuery } from '@tanstack/react-query'
 import { getPlanStatus } from '@/entities/user/api'
-import { Logo } from '@/shared/components/Logo'
-import { ThemeToggle } from '@/shared/components/ThemeToggle'
-import { Button } from '@/shared/components/ui/button'
+import { Button } from '@/shared/ui/Button'
 import { useSimulation } from '../hooks/useSimulation'
 import { TaskSelector } from '../components/TaskSelector'
 import { SimulationForm } from '../components/SimulationForm'
@@ -66,45 +64,38 @@ export function SimulationPage() {
   }, [step, production, navigate])
 
   return (
-    <div className="min-h-screen bg-canvas">
-      <header className="flex items-center justify-between border-b border-line bg-surface px-4 py-3">
-        <Logo size="sm" />
-        <ThemeToggle />
-      </header>
+    <main className="mx-auto max-w-2xl px-4 py-6">
+      {isPlanLoading && <SimulationSkeleton />}
 
-      <main className="mx-auto max-w-2xl px-4 py-6">
-        {isPlanLoading && <SimulationSkeleton />}
+      {isPlanError && (
+        <div className="space-y-3 text-center">
+          <p className="text-sm text-danger">
+            Impossible de charger vos informations. Réessayez dans quelques instants.
+          </p>
+          <Button variant="secondary" size="sm" onClick={() => refetchPlan()}>
+            Réessayer
+          </Button>
+        </div>
+      )}
 
-        {isPlanError && (
-          <div className="space-y-3 text-center">
-            <p className="text-sm text-danger">
-              Impossible de charger vos informations. Réessayez dans quelques instants.
-            </p>
-            <Button variant="outline" size="sm" onClick={() => refetchPlan()}>
-              Réessayer
-            </Button>
-          </div>
-        )}
+      {planData && step === 'idle' && (
+        <TaskSelector
+          plan={planData.plan}
+          simulationsUsed={planData.simulations_used}
+          isLoading={isCreating}
+          onSelect={selectTask}
+        />
+      )}
 
-        {planData && step === 'idle' && (
-          <TaskSelector
-            plan={planData.plan}
-            simulationsUsed={planData.simulations_used}
-            isLoading={isCreating}
-            onSelect={selectTask}
-          />
-        )}
-
-        {planData && (step === 'task-selected' || step === 'correcting') && production && (
-          <SimulationForm
-            tache={production.tache}
-            isSubmitting={isCorrecting}
-            error={correctError}
-            onSubmit={submitText}
-            onBack={reset}
-          />
-        )}
-      </main>
-    </div>
+      {planData && (step === 'task-selected' || step === 'correcting') && production && (
+        <SimulationForm
+          tache={production.tache}
+          isSubmitting={isCorrecting}
+          error={correctError}
+          onSubmit={submitText}
+          onBack={reset}
+        />
+      )}
+    </main>
   )
 }