feat(notes): liens internes, onglet Réseau, living blocks et consentement IA

Rend les liens entre notes visibles et persistants (sync NoteLink au save, auto-save, graphe réseau rafraîchi), ajoute living blocks, Memory Echo, recherche globale, consentement IA explicite et consolide les prototypes design en architectural-grid.

Co-authored-by: Cursor <cursoragent@cursor.com>

memento-note/components/notebook-suggestion-toast.tsx

@@ -6,6 +6,7 @@ import { X, FolderOpen } from 'lucide-react'
 import { useNotebooks } from '@/context/notebooks-context'
 import { cn } from '@/lib/utils'
 import { useLanguage } from '@/lib/i18n'
+import { useAiConsent } from '@/components/legal/ai-consent-provider'
 import { getNotebookIcon } from '@/lib/notebook-icon'
 
 interface NotebookSuggestionToastProps {
@@ -22,6 +23,7 @@ export function NotebookSuggestionToast({
   onMoveToNotebook
 }: NotebookSuggestionToastProps) {
   const { t } = useLanguage()
+  const { hasAiConsent } = useAiConsent()
   const [suggestion, setSuggestion] = useState<any>(null)
   const [isLoading, setIsLoading] = useState(false)
   const [visible, setVisible] = useState(true)
@@ -47,6 +49,8 @@ export function NotebookSuggestionToast({
   // Fetch suggestion when component mounts
   useEffect(() => {
     const fetchSuggestion = async () => {
+      if (!hasAiConsent) return
+
       // Only suggest if content is long enough (> 20 words)
       const wordCount = noteContent.trim().split(/\s+/).length
       if (wordCount < 20) {
@@ -78,7 +82,7 @@ export function NotebookSuggestionToast({
     }
 
     fetchSuggestion()
-  }, [noteContent])
+  }, [noteContent, hasAiConsent])
 
   const handleDismiss = () => {
     setVisible(false)