fix(audit): mobile critique + sécurité mobile + verifyMobileToken async

Mobile fixes (CRITIQUE):
- theme.ts: C.surface + emerald/blue/amber/purple ajoutés (crash Révision fix)
- note/[id].tsx: édition préserve le HTML (titre seulement, contenu read-only)
  + message explicatif 'utilisez la version web'
- store.ts: logout appelle POST /api/mobile/auth/logout avant clearToken

Mobile auth (SÉCURITÉ):
- Nouvelle route /api/mobile/auth/logout — blacklist Redis du token (TTL 90j)
- verifyMobileToken devient async + check Redis blacklist
- getMobileUserId devient async

Note: Publication IA mode + templates déjà dans note-editor-toolbar.tsx (pas manquant)
Note: Structured Views Wizard déjà branché via StructuredViewsIntro (pas orphelin)

memento-mobile/app/note/[id].tsx

@@ -158,7 +158,6 @@ export default function NoteScreen() {
   const handleEdit = () => {
     if (!note) return
     setEditTitle(note.title)
-    setEditContent(htmlToPlainText(note.content ?? ''))
     setEditMode(true)
   }
 
@@ -168,10 +167,10 @@ export default function NoteScreen() {
     try {
       const res = await apiFetch(ENDPOINTS.note(note.id), {
         method: 'PUT',
-        body: JSON.stringify({ title: editTitle.trim(), content: editContent }),
+        body: JSON.stringify({ title: editTitle.trim() }),
       })
       if (!res.ok) throw new Error('Erreur de sauvegarde')
-      setNote((prev) => prev ? { ...prev, title: editTitle.trim(), content: editContent } : prev)
+      setNote((prev) => prev ? { ...prev, title: editTitle.trim() } : prev)
       setEditMode(false)
     } catch (e: any) {
       Alert.alert('Erreur', e.message)
@@ -257,20 +256,21 @@ export default function NoteScreen() {
         />
       )}
 
-      {/* Mode édition */}
+      {/* Mode édition — titre uniquement, contenu preserve HTML */}
       {note && editMode && (
         <View style={{ flex: 1 }}>
-          <TextInput value={editTitle} onChangeText={setEditTitle} style={s.editTitle} placeholder="Titre…" placeholderTextColor={C.border} />
+          <TextInput value={editTitle} onChangeText={setEditTitle} style={s.editTitle} placeholder="Titre…" placeholderTextColor={C.border} autoFocus />
           <View style={s.editDivider} />
-          <TextInput value={editContent} onChangeText={setEditContent} style={s.editContent} placeholder="Contenu…" placeholderTextColor={C.concrete} multiline textAlignVertical="top" scrollEnabled />
+          <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center', paddingHorizontal: 20 }}>
+            <Text style={{ fontSize: 14, color: C.concrete, textAlign: 'center', lineHeight: 22 }}>
+              Le contenu enrichi ne peut pas être édité depuis mobile.{`\n\n`}Utilisez la version web pour modifier le texte.
+            </Text>
+          </View>
           {/* Barre outils */}
           <View style={s.toolbar}>
-            <MicButton state={audioState} onPress={handleMic} />
-            {audioState === 'recording'
-              ? <Text style={s.recordHint}>● Enregistrement… Appuyez pour arrêter</Text>
-              : <TouchableOpacity onPress={() => setAiSheetOpen(true)} disabled={!editContent.trim()} style={[s.aiBtn, !editContent.trim() && { opacity: 0.35 }]} activeOpacity={0.8}>
-                  <Text style={s.aiBtnText}>✨ Améliorer avec l'IA</Text>
-                </TouchableOpacity>}
+            <TouchableOpacity onPress={handleSave} disabled={saving} style={[s.aiBtn, { flex: 1, justifyContent: 'center' }]} activeOpacity={0.8}>
+              <Text style={s.aiBtnText}>{saving ? 'Sauvegarde…' : 'Enregistrer le titre'}</Text>
+            </TouchableOpacity>
           </View>
         </View>
       )}

memento-mobile/lib/store.ts

@@ -43,6 +43,7 @@ export const useAuthStore = create<AuthState>((set) => ({
   },
 
   logout: async () => {
+    try { await apiFetch(ENDPOINTS.logout, { method: 'POST' }) } catch {}
     await clearToken()
     set({ user: null })
   },

memento-mobile/lib/theme.ts

@@ -6,7 +6,13 @@ export const C = {
   concrete: '#8A8A82',
   border: '#E8E6E0',
   white: '#FFFFFF',
+  surface: '#F5F4F0',
   rose: '#e11d48',
   roseBg: '#fff1f2',
   roseBorder: '#fecdd3',
+  emerald: '#10b981',
+  emeraldBg: '#ecfdf5',
+  blue: '#3b82f6',
+  amber: '#f59e0b',
+  purple: '#8b5cf6',
 }

memento-note/app/api/mobile/auth/logout/route.ts

@@ -0,0 +1,19 @@
+import { NextResponse } from 'next/server'
+import { getMobileUserId } from '@/lib/mobile-auth'
+import { redis } from '@/lib/redis'
+
+export async function POST(req: Request) {
+  const userId = getMobileUserId(req)
+  if (!userId) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
+
+  const auth = req.headers.get('Authorization') ?? ''
+  const token = auth.startsWith('Bearer ') ? auth.slice(7) : ''
+
+  if (token) {
+    try {
+      await redis.setex(`mobile:revoked:${token}`, 90 * 24 * 60 * 60, '1')
+    } catch {}
+  }
+
+  return NextResponse.json({ success: true })
+}

memento-note/lib/mobile-auth.ts

@@ -19,8 +19,15 @@ export function createMobileToken(userId: string): string {
   return Buffer.from(`${payload}:${sig}`).toString('base64url')
 }
 
-export function verifyMobileToken(token: string): string | null {
+export async function verifyMobileToken(token: string): Promise<string | null> {
   try {
+    // Check Redis blacklist first (non-blocking — if Redis is down, allow)
+    try {
+      const { redis } = await import('@/lib/redis')
+      const revoked = await redis.get(`mobile:revoked:${token}`)
+      if (revoked) return null
+    } catch {}
+
     const decoded = Buffer.from(token, 'base64url').toString('utf-8')
     const lastColon = decoded.lastIndexOf(':')
     if (lastColon === -1) return null
@@ -41,7 +48,7 @@ export function verifyMobileToken(token: string): string | null {
   }
 }
 
-export function getMobileUserId(request: Request): string | null {
+export async function getMobileUserId(request: Request): Promise<string | null> {
   const auth = request.headers.get('Authorization')
   if (!auth?.startsWith('Bearer ')) return null
   return verifyMobileToken(auth.slice(7))