feat: redirect to AI consent settings when consent is missing

- requestAiConsent now redirects to /settings/general?highlight=aiConsent
  instead of opening the modal when called outside the settings page
- Settings page highlights the consent section and scrolls to it
- Adds consent.ai.settingsBanner i18n key (fr/en)
- Keeps inline modal on /settings/general so the grant button still works

memento-note/app/(main)/settings/general/general-settings-client.tsx

@@ -1,11 +1,11 @@
 'use client'
 
-import { useState } from 'react'
+import { useState, useEffect, useRef } from 'react'
 import Link from 'next/link'
 import { useLanguage } from '@/lib/i18n'
 import { updateAISettings } from '@/app/actions/ai-settings'
 import { toast } from 'sonner'
-import { useRouter } from 'next/navigation'
+import { useRouter, useSearchParams } from 'next/navigation'
 import { Globe, Bell, Shield, Brain, HelpCircle } from 'lucide-react'
 import { motion } from 'motion/react'
 import { openCookiePreferences } from '@/lib/consent/cookie-consent'
@@ -27,6 +27,20 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
   const { t, setLanguage: setContextLanguage } = useLanguage()
   const { hasAiConsent, revokeConsent, requestAiConsent } = useAiConsent()
   const router = useRouter()
+  const searchParams = useSearchParams()
+  const aiConsentSectionRef = useRef<HTMLDivElement>(null)
+  const highlightAiConsent = searchParams?.get('highlight') === 'aiConsent'
+  const [showConsentHighlight, setShowConsentHighlight] = useState(highlightAiConsent)
+
+  useEffect(() => {
+    if (highlightAiConsent && aiConsentSectionRef.current) {
+      setShowConsentHighlight(true)
+      aiConsentSectionRef.current.scrollIntoView({ behavior: 'smooth', block: 'center' })
+      const timer = setTimeout(() => setShowConsentHighlight(false), 4000)
+      return () => clearTimeout(timer)
+    }
+  }, [highlightAiConsent])
+
   const [language, setLanguage] = useState(initialSettings.preferredLanguage || 'auto')
   const [emailNotifications, setEmailNotifications] = useState(initialSettings.emailNotifications ?? false)
   const [desktopNotifications, setDesktopNotifications] = useState(initialSettings.desktopNotifications ?? false)
@@ -76,6 +90,12 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
         {t('generalSettings.description')}
       </h3>
 
+      {highlightAiConsent && (
+        <div className="rounded-xl border border-brand-accent/30 bg-brand-accent/10 p-4 text-sm font-medium text-ink">
+          {t('consent.ai.settingsBanner')}
+        </div>
+      )}
+
       <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
         <div className="bg-white/40 dark:bg-white/5 border border-border rounded-xl p-8 space-y-6">
           <div className="flex items-center gap-5">
@@ -202,7 +222,15 @@ export function GeneralSettingsClient({ initialSettings }: GeneralSettingsClient
           </div>
         </div>
 
-        <div className="bg-white/40 dark:bg-white/5 border border-border rounded-xl p-8 space-y-6 md:col-span-2">
+        <div
+          ref={aiConsentSectionRef}
+          className={cn(
+            'bg-white/40 dark:bg-white/5 border rounded-xl p-8 space-y-6 md:col-span-2 transition-all duration-500',
+            showConsentHighlight
+              ? 'border-brand-accent ring-2 ring-brand-accent/40 shadow-lg shadow-brand-accent/10'
+              : 'border-border'
+          )}
+        >
           <div className="flex items-start justify-between gap-4">
             <div className="flex items-center gap-5">
               <div className="p-3 bg-paper dark:bg-white/10 rounded-2xl text-concrete border border-border">

memento-note/components/dashboard-view.tsx

@@ -6,6 +6,7 @@ import { useReducedMotion } from 'motion/react'
 import { Inbox, Send, Bell, Mail } from 'lucide-react'
 import { useLanguage } from '@/lib/i18n'
 import { useAiConsent } from '@/components/legal/ai-consent-provider'
+import { redirectToAiConsentSettings } from '@/lib/consent/ai-consent-redirect'
 import { createNote } from '@/app/actions/notes'
 import { emitNoteChange } from '@/lib/note-change-sync'
 import { toast } from 'sonner'
@@ -519,7 +520,10 @@ export function DashboardView({ onNoteSelect }: DashboardViewProps) {
     try {
       const res = await fetch('/api/ai/echo')
       const json = await res.json()
-      if (res.status === 403 && json.code === 'ai_consent_required') { await requestAiConsent(); return }
+      if (res.status === 403 && json.code === 'ai_consent_required') {
+        redirectToAiConsentSettings(router)
+        return
+      }
       if (!res.ok) throw new Error(json.error)
       if (json.insight) {
         await reloadBriefingAndPaths()
@@ -533,7 +537,7 @@ export function DashboardView({ onNoteSelect }: DashboardViewProps) {
     } finally {
       setEchoRefreshing(false)
     }
-  }, [requestAiConsent, reloadBriefingAndPaths, t])
+  }, [requestAiConsent, reloadBriefingAndPaths, t, router])
 
   const handleEnableAi = useCallback(async () => {
     await requestAiConsent()

memento-note/components/legal/ai-consent-provider.tsx

@@ -2,7 +2,9 @@
 
 import { createContext, useContext, useState, useEffect, useRef, useCallback } from 'react'
 import { useSession } from 'next-auth/react'
+import { useRouter } from 'next/navigation'
 import { getLocalStorageAiConsent, setLocalStorageAiConsent, removeLocalStorageAiConsent } from '@/lib/consent/ai-consent-client'
+import { redirectToAiConsentSettings } from '@/lib/consent/ai-consent-redirect'
 import { updateAISettings } from '@/app/actions/ai-settings'
 import { AiConsentModal } from './ai-consent-modal'
 import { toast } from 'sonner'
@@ -24,6 +26,7 @@ interface AiConsentProviderProps {
 export function AiConsentProvider({ children, initialPersistentConsent = false }: AiConsentProviderProps) {
   const { data: session, update: updateSession } = useSession()
   const { t } = useLanguage()
+  const router = useRouter()
 
   const [persistentConsent, setPersistentConsent] = useState(false)
   const [sessionConsent, setSessionConsent] = useState(false)
@@ -60,11 +63,22 @@ export function AiConsentProvider({ children, initialPersistentConsent = false }
       return Promise.resolve(true)
     }
 
-    setModalOpen(true)
+    // On settings page we keep the inline modal; elsewhere redirect to settings
+    // so the user sees exactly where to grant consent.
+    if (typeof window !== 'undefined' && window.location.pathname.startsWith('/settings/general')) {
+      setModalOpen(true)
+      return new Promise<boolean>((resolve) => {
+        pendingResolveRef.current = resolve
+      })
+    }
+
+    redirectToAiConsentSettings(router, { replace: false })
     return new Promise<boolean>((resolve) => {
       pendingResolveRef.current = resolve
+      pendingResolveRef.current(false)
+      pendingResolveRef.current = null
     })
-  }, [hasAiConsent])
+  }, [hasAiConsent, router])
 
   const handleConfirm = async (remember: boolean) => {
     setModalOpen(false)

memento-note/lib/consent/ai-consent-redirect.ts

@@ -0,0 +1,24 @@
+import type { AppRouterInstance } from 'next/dist/shared/lib/app-router-context.shared-runtime'
+
+/**
+ * Redirects the user to General Settings with the AI consent section highlighted.
+ * Call this when an AI feature is blocked because the user has not granted consent.
+ */
+export function redirectToAiConsentSettings(
+  router: AppRouterInstance | ReturnType<typeof import('next/navigation').useRouter>,
+  options?: { replace?: boolean }
+) {
+  const url = '/settings/general?highlight=aiConsent'
+  if (options?.replace) {
+    router.replace(url)
+  } else {
+    router.push(url)
+  }
+}
+
+/**
+ * Returns the settings URL that highlights the AI consent section.
+ */
+export function getAiConsentSettingsUrl() {
+  return '/settings/general?highlight=aiConsent'
+}

memento-note/locales/en.json

@@ -3807,7 +3807,8 @@
       "revokedToast": "AI processing consent successfully revoked.",
       "complianceBadge": "GDPR compliance",
       "auditFailed": "Could not record your consent. Please try again.",
-      "requiredToast": "Enable AI processing in Settings → AI to use this feature."
+      "requiredToast": "Enable AI processing in Settings → AI to use this feature.",
+      "settingsBanner": "To use this feature, enable AI processing below and click « Grant consent »."
     }
   },
   "account": {

memento-note/locales/fr.json

@@ -3813,7 +3813,8 @@
       "revokedToast": "Consentement IA révoqué avec succès.",
       "complianceBadge": "Conformité RGPD",
       "auditFailed": "Impossible d'enregistrer votre consentement. Réessayez.",
-      "requiredToast": "Activez le traitement IA dans Paramètres → IA pour utiliser cette fonctionnalité."
+      "requiredToast": "Activez le traitement IA dans Paramètres → IA pour utiliser cette fonctionnalité.",
+      "settingsBanner": "Pour utiliser cette fonctionnalité, activez le traitement IA ci-dessous puis cliquez sur « Accorder le consentement »."
     }
   },
   "account": {