feat(simulations): resume session + RapportPage tolère rapport=null (FTD-21)

src/features/simulations/pages/RapportPage.tsx

@@ -11,6 +11,7 @@
  * Règle H : logique de floutage dans entities/report/lib.ts.
  */
 
+import { useEffect } from 'react'
 import ReactMarkdown from 'react-markdown'
 import { Link, useNavigate, useParams } from 'react-router-dom'
 import { useQuery } from '@tanstack/react-query'
@@ -23,6 +24,15 @@ import { Badge } from '@/shared/ui/Badge'
 import { Button } from '@/shared/ui/Button'
 import type { Critere } from '@/entities/report/types'
 
+function isReportNotReady(err: unknown): boolean {
+  return (
+    typeof err === 'object' &&
+    err !== null &&
+    'code' in err &&
+    (err as { code: unknown }).code === 'REPORT_NOT_READY'
+  )
+}
+
 // ── Composants internes ──────────────────────────────────────────────────────
 
 function RapportSkeleton() {
@@ -105,7 +115,16 @@ export function RapportPage() {
   const { id = '' } = useParams<{ id: string }>()
   const navigate = useNavigate()
 
-  const { rapport, isLoading, isError } = useRapport(id)
+  const { rapport, isLoading, isError, error } = useRapport(id)
+  const isInProgress = isError && isReportNotReady(error)
+
+  // FTD-21 — si la simulation n'est pas encore corrigée, rediriger vers /simulation/ee.
+  // Le SimulationFlowProvider restaurera la session via localStorage si présent.
+  useEffect(() => {
+    if (isInProgress) {
+      navigate('/simulation/ee', { replace: true })
+    }
+  }, [isInProgress, navigate])
 
   const {
     data: planData,
@@ -137,8 +156,15 @@ export function RapportPage() {
       {/* Loading */}
       {(isLoading || isPlanLoading) && <RapportSkeleton />}
 
-      {/* Erreur */}
-      {(isError || isPlanError) && !isLoading && !isPlanLoading && (
+      {/* FTD-21 — simulation en cours : message discret avant redirection via useEffect */}
+      {isInProgress && (
+        <p className="text-center text-sm text-ink-4" aria-live="polite">
+          Votre simulation est en cours.
+        </p>
+      )}
+
+      {/* Erreur (hors "en cours" déjà géré au-dessus) */}
+      {(isError || isPlanError) && !isInProgress && !isLoading && !isPlanLoading && (
         <div
           role="alert"
           className="space-y-3 rounded-lg border border-danger/30 bg-danger-bg px-4 py-6 text-center"