From 91b120111260c95182352bd0db1ef4436d88b7f3 Mon Sep 17 00:00:00 2001
From: Antigravity <antigravity@gemini.ai>
Date: Fri, 8 May 2026 14:31:08 +0000
Subject: [PATCH] refactor: split NoteEditor into focused components +
 consolidate contexts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Phase 1: NoteEditor Split (64KB → 9 focused components)
- components/note-editor/: types.ts, context, toolbar, title-block,
  content-area, metadata-section, full-page, dialog compositions
- Maintains backwards compatibility via re-export from note-editor.tsx

Phase 2: Context Consolidation (5 → 3 contexts)
- NotebooksContext absorbs LabelContext (labels CRUD)
- EditorUIContext merges HomeViewContext + NotebookDragContext
- Removed: LabelContext, home-view-context, notebook-drag-context

Phase 3: React Query Infrastructure
- Added QueryProvider with @tanstack/react-query
- lib/query-keys.ts: centralized query key definitions
- lib/query-hooks.ts: useNotes, useNotebooksQuery, useLabelsQuery
- lib/use-refresh.ts: hybrid invalidateQueries + triggerRefresh helper
- NotebooksContext: invalidateQueries on mutations (with triggerRefresh fallback)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 memento-note/app/actions/notes.ts             |   5 +-
 memento-note/components/header-wrapper.tsx    |   4 +-
 memento-note/components/header.tsx            |   4 +-
 memento-note/components/home-client.tsx       |  65 +-
 memento-note/components/label-badge.tsx       |   4 +-
 memento-note/components/label-filter.tsx      |   4 +-
 .../components/label-management-dialog.tsx    |   4 +-
 memento-note/components/label-manager.tsx     |  13 +-
 memento-note/components/label-selector.tsx    |   4 +-
 memento-note/components/masonry-grid.tsx      |   4 +-
 memento-note/components/note-card.tsx         |   6 +-
 memento-note/components/note-editor/index.tsx |  37 +
 .../note-editor/note-content-area.tsx         | 179 ++++
 .../note-editor/note-editor-context.tsx       | 796 ++++++++++++++++++
 .../note-editor/note-editor-dialog.tsx        | 345 ++++++++
 .../note-editor/note-editor-full-page.tsx     | 146 ++++
 .../note-editor/note-editor-toolbar.tsx       | 307 +++++++
 .../note-editor/note-metadata-section.tsx     |  50 ++
 .../note-editor/note-title-block.tsx          | 118 +++
 memento-note/components/note-editor/types.ts  | 174 ++++
 .../components/note-inline-editor.tsx         |   5 +-
 memento-note/components/note-input.tsx        |   3 +-
 memento-note/components/notebooks-list.tsx    |   8 +-
 memento-note/components/providers-wrapper.tsx |  19 +-
 memento-note/components/query-provider.tsx    |  26 +
 memento-note/context/LabelContext.tsx         | 145 ----
 memento-note/context/editor-ui-context.tsx    |  74 ++
 memento-note/context/home-view-context.tsx    |  36 -
 .../context/notebook-drag-context.tsx         |  64 --
 memento-note/context/notebooks-context.tsx    | 151 +++-
 memento-note/lib/query-hooks.ts               |  77 ++
 memento-note/lib/query-keys.ts                |  23 +
 memento-note/lib/use-refresh.ts               |  46 +
 memento-note/package.json                     |   2 +
 memento-note/prisma/schema.prisma             |   2 +
 35 files changed, 2606 insertions(+), 344 deletions(-)
 create mode 100644 memento-note/components/note-editor/index.tsx
 create mode 100644 memento-note/components/note-editor/note-content-area.tsx
 create mode 100644 memento-note/components/note-editor/note-editor-context.tsx
 create mode 100644 memento-note/components/note-editor/note-editor-dialog.tsx
 create mode 100644 memento-note/components/note-editor/note-editor-full-page.tsx
 create mode 100644 memento-note/components/note-editor/note-editor-toolbar.tsx
 create mode 100644 memento-note/components/note-editor/note-metadata-section.tsx
 create mode 100644 memento-note/components/note-editor/note-title-block.tsx
 create mode 100644 memento-note/components/note-editor/types.ts
 create mode 100644 memento-note/components/query-provider.tsx
 delete mode 100644 memento-note/context/LabelContext.tsx
 create mode 100644 memento-note/context/editor-ui-context.tsx
 delete mode 100644 memento-note/context/home-view-context.tsx
 delete mode 100644 memento-note/context/notebook-drag-context.tsx
 create mode 100644 memento-note/lib/query-hooks.ts
 create mode 100644 memento-note/lib/query-keys.ts
 create mode 100644 memento-note/lib/use-refresh.ts

diff --git a/memento-note/app/actions/notes.ts b/memento-note/app/actions/notes.ts
index 2672dc7..4887261 100644
--- a/memento-note/app/actions/notes.ts
+++ b/memento-note/app/actions/notes.ts
@@ -37,6 +37,7 @@ const NOTE_LIST_SELECT = {
   checkItems: true,
   labels: true,
   images: true,
+  illustrationSvg: true,
   links: true,
   reminder: true,
   isReminderDone: true,
@@ -789,6 +790,7 @@ export async function updateNote(id: string, data: {
   checkItems?: CheckItem[] | null
   labels?: string[] | null
   images?: string[] | null
+  illustrationSvg?: string | null
   links?: any[] | null
   reminder?: Date | null
   isMarkdown?: boolean
@@ -844,6 +846,7 @@ export async function updateNote(id: string, data: {
     // labels handled by syncNoteLabels below
     delete updateData.labels
     if ('images' in data) updateData.images = data.images ? JSON.stringify(data.images) : null
+    if ('illustrationSvg' in data) updateData.illustrationSvg = data.illustrationSvg
     if ('links' in data) updateData.links = data.links ? JSON.stringify(data.links) : null
     if ('notebookId' in data) updateData.notebookId = data.notebookId
     // Explicitly handle size to ensure it propagates
@@ -852,7 +855,7 @@ export async function updateNote(id: string, data: {
     // Only update contentUpdatedAt for actual content changes, NOT for property changes
     // (size, color, isPinned, isArchived are properties, not content)
     // skipContentTimestamp=true is used by the inline editor to avoid bumping "Récent" on every auto-save
-    const contentFields = ['title', 'content', 'checkItems', 'images', 'links']
+    const contentFields = ['title', 'content', 'checkItems', 'images', 'links', 'illustrationSvg']
     const isContentChange = contentFields.some(field => field in data)
     if (isContentChange && !options?.skipContentTimestamp) {
       updateData.contentUpdatedAt = new Date()
diff --git a/memento-note/components/header-wrapper.tsx b/memento-note/components/header-wrapper.tsx
index efceb8f..dc7961d 100644
--- a/memento-note/components/header-wrapper.tsx
+++ b/memento-note/components/header-wrapper.tsx
@@ -3,7 +3,7 @@
 import { Suspense } from 'react'
 import { Header } from './header'
 import { useSearchParams, useRouter } from 'next/navigation'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 
 interface HeaderWrapperProps {
   onColorFilterChange?: (color: string | null) => void
@@ -13,7 +13,7 @@ interface HeaderWrapperProps {
 function HeaderContent({ onColorFilterChange, user }: HeaderWrapperProps) {
   const searchParams = useSearchParams()
   const router = useRouter()
-  const { labels } = useLabels()
+  const { labels } = useNotebooks()
   
   const selectedLabels = searchParams.get('labels')?.split(',').filter(Boolean) || []
   const selectedColor = searchParams.get('color') || null
diff --git a/memento-note/components/header.tsx b/memento-note/components/header.tsx
index 54d14b5..aa44470 100644
--- a/memento-note/components/header.tsx
+++ b/memento-note/components/header.tsx
@@ -21,7 +21,7 @@ import { Menu, Search, StickyNote, Tag, Moon, Sun, X, Bell, Sparkles, Grid3x3, S
 import Link from 'next/link'
 import { usePathname, useRouter, useSearchParams } from 'next/navigation'
 import { cn } from '@/lib/utils'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 import { LabelFilter } from './label-filter'
 import { NotificationPanel } from './notification-panel'
 import { updateTheme } from '@/app/actions/profile'
@@ -53,7 +53,7 @@ export function Header({
   const pathname = usePathname()
   const router = useRouter()
   const searchParams = useSearchParams()
-  const { labels, setNotebookId } = useLabels()
+  const { labels, setNotebookId } = useNotebooks()
   const { t } = useLanguage()
   const { data: session } = useSession()
 
diff --git a/memento-note/components/home-client.tsx b/memento-note/components/home-client.tsx
index 859dcb7..cd68eaa 100644
--- a/memento-note/components/home-client.tsx
+++ b/memento-note/components/home-client.tsx
@@ -12,14 +12,13 @@ import { MemoryEchoNotification } from '@/components/memory-echo-notification'
 import { NotebookSuggestionToast } from '@/components/notebook-suggestion-toast'
 import { Button } from '@/components/ui/button'
 import { Plus, ArrowUpDown } from 'lucide-react'
-import { useLabels } from '@/context/LabelContext'
 import { useNoteRefresh } from '@/context/NoteRefreshContext'
 import { useReminderCheck } from '@/hooks/use-reminder-check'
 import { useAutoLabelSuggestion } from '@/hooks/use-auto-label-suggestion'
 import { useNotebooks } from '@/context/notebooks-context'
 import { cn } from '@/lib/utils'
 import { useLanguage } from '@/lib/i18n'
-import { useHomeView } from '@/context/home-view-context'
+import { useEditorUI } from '@/context/editor-ui-context'
 import { NoteHistoryModal } from '@/components/note-history-modal'
 import { toast } from 'sonner'
 import { AnimatePresence, motion } from 'motion/react'
@@ -71,9 +70,11 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
   const [isCreating, startCreating] = useTransition()
   const [sortOrder, setSortOrder] = useState<SortOrder>('newest')
   const [showSortMenu, setShowSortMenu] = useState(false)
+  const notesRef = useRef(notes)
+  notesRef.current = notes
   const { refreshKey, triggerRefresh } = useNoteRefresh()
-  const { labels } = useLabels()
-  const { setControls } = useHomeView()
+  const { labels, notebooks } = useNotebooks()
+  const { setControls } = useEditorUI()
 
   const { shouldSuggest: shouldSuggestLabels, notebookId: suggestNotebookId, dismiss: dismissLabelSuggestion } = useAutoLabelSuggestion()
   const [autoLabelOpen, setAutoLabelOpen] = useState(false)
@@ -84,18 +85,17 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
     }
   }, [shouldSuggestLabels, suggestNotebookId])
 
-  // BUG FIX: forceList param from sidebar carnet click → reset to editorial view
+  // Sidebar carnet / inbox: forceList → liste éditoriale + fermer l'éditeur plein écran (comme la ref. architectural-grid)
   useEffect(() => {
     const forceList = searchParams.get('forceList')
-    if (forceList === '1') {
-      setNotesViewMode(prev => (prev === 'tabs' ? 'masonry' : prev))
-      const params = new URLSearchParams(searchParams.toString())
-      params.delete('forceList')
-      const newUrl = params.toString() ? `/?${params.toString()}` : '/'
-      router.replace(newUrl, { scroll: false })
-    }
-  // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [searchParams])
+    if (forceList !== '1') return
+    setNotesViewMode(prev => (prev === 'tabs' ? 'masonry' : prev))
+    setEditingNote(null)
+    const params = new URLSearchParams(searchParams.toString())
+    params.delete('forceList')
+    const newUrl = params.toString() ? `/?${params.toString()}` : '/'
+    router.replace(newUrl, { scroll: false })
+  }, [searchParams, router])
 
   const notebookFilter = searchParams.get('notebook')
   const handleNoteCreated = useCallback((note: Note) => {
@@ -196,27 +196,25 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
 
   useReminderCheck(notes)
 
+  // Garder openNote dans l'URL tant que l'éditeur est ouvert → le sidebar peut surligner la note (comme activeNoteId dans la ref.)
   useEffect(() => {
     const openNoteId = searchParams.get('openNote')
     if (!openNoteId) return
 
-    const openNote = async () => {
-      const existing = notes.find(n => n.id === openNoteId)
-      if (existing) {
-        setEditingNote({ note: existing, readOnly: false })
-      } else {
-        const fetched = await getNoteById(openNoteId)
-        if (fetched) {
-          setEditingNote({ note: fetched, readOnly: false })
-        }
-      }
-      const params = new URLSearchParams(searchParams.toString())
-      params.delete('openNote')
-      router.replace(params.toString() ? `/?${params.toString()}` : '/', { scroll: false })
+    let cancelled = false
+    const run = async () => {
+      const existing = notesRef.current.find(n => n.id === openNoteId)
+      const note = existing ?? (await getNoteById(openNoteId))
+      if (cancelled || !note) return
+      setEditingNote(prev => {
+        if (prev?.note.id === note.id && prev.readOnly === false) return prev
+        return { note, readOnly: false }
+      })
+    }
+    run()
+    return () => {
+      cancelled = true
     }
-
-    openNote()
-  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [searchParams])
 
   useEffect(() => {
@@ -305,7 +303,6 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
   // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [searchParams, refreshKey])
 
-  const { notebooks } = useNotebooks()
   const currentNotebook = notebooks.find((n: any) => n.id === searchParams.get('notebook'))
 
   useEffect(() => {
@@ -340,8 +337,12 @@ export function HomeClient({ initialNotes, initialSettings }: HomeClientProps) {
 
   const handleEditorClose = useCallback(() => {
     setEditingNote(null)
+    const params = new URLSearchParams(searchParams.toString())
+    params.delete('openNote')
+    const qs = params.toString()
+    router.replace(qs ? `/?${qs}` : '/', { scroll: false })
     triggerRefresh()
-  }, [triggerRefresh])
+  }, [triggerRefresh, router, searchParams])
 
   return (
     <div
diff --git a/memento-note/components/label-badge.tsx b/memento-note/components/label-badge.tsx
index f66e9af..fdd30b5 100644
--- a/memento-note/components/label-badge.tsx
+++ b/memento-note/components/label-badge.tsx
@@ -4,7 +4,7 @@ import { Badge } from '@/components/ui/badge'
 import { X } from 'lucide-react'
 import { cn } from '@/lib/utils'
 import { LABEL_COLORS } from '@/lib/types'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 
 interface LabelBadgeProps {
   label: string
@@ -23,7 +23,7 @@ export function LabelBadge({
   isSelected = false,
   isDisabled = false,
 }: LabelBadgeProps) {
-  const { getLabelColor } = useLabels()
+  const { getLabelColor } = useNotebooks()
   const colorName = getLabelColor(label)
   const colorClasses = LABEL_COLORS[colorName] || LABEL_COLORS.gray
 
diff --git a/memento-note/components/label-filter.tsx b/memento-note/components/label-filter.tsx
index 8f837ff..386daf1 100644
--- a/memento-note/components/label-filter.tsx
+++ b/memento-note/components/label-filter.tsx
@@ -12,7 +12,7 @@ import { Button } from '@/components/ui/button'
 import { Badge } from '@/components/ui/badge'
 import { Filter, Check } from 'lucide-react'
 import { cn } from '@/lib/utils'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 import { LabelBadge } from './label-badge'
 import { useLanguage } from '@/lib/i18n'
 
@@ -23,7 +23,7 @@ interface LabelFilterProps {
 }
 
 export function LabelFilter({ selectedLabels, onFilterChange, className }: LabelFilterProps) {
-  const { labels, loading } = useLabels()
+  const { labels, isLoading: loading } = useNotebooks()
   const { t, language } = useLanguage()
   const [allLabelNames, setAllLabelNames] = useState<string[]>([])
 
diff --git a/memento-note/components/label-management-dialog.tsx b/memento-note/components/label-management-dialog.tsx
index 58e2e05..ced2595 100644
--- a/memento-note/components/label-management-dialog.tsx
+++ b/memento-note/components/label-management-dialog.tsx
@@ -14,7 +14,7 @@ import {
 import { Settings, Plus, Palette, Trash2, Tag } from 'lucide-react'
 import { LABEL_COLORS, LabelColorName } from '@/lib/types'
 import { cn } from '@/lib/utils'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 import { useLanguage } from '@/lib/i18n'
 import { useNoteRefresh } from '@/context/NoteRefreshContext'
 
@@ -26,7 +26,7 @@ export interface LabelManagementDialogProps {
 
 export function LabelManagementDialog(props: LabelManagementDialogProps = {}) {
   const { open, onOpenChange } = props
-  const { labels, loading, addLabel, updateLabel, deleteLabel } = useLabels()
+  const { labels, isLoading: loading, addLabel, updateLabel, deleteLabel } = useNotebooks()
   const { t, language } = useLanguage()
   const { triggerRefresh } = useNoteRefresh()
   const [confirmDeleteId, setConfirmDeleteId] = useState<string | null>(null)
diff --git a/memento-note/components/label-manager.tsx b/memento-note/components/label-manager.tsx
index 3fc7da7..28c7d50 100644
--- a/memento-note/components/label-manager.tsx
+++ b/memento-note/components/label-manager.tsx
@@ -16,7 +16,7 @@ import { Badge } from './ui/badge'
 import { Tag, X, Plus, Palette, AlertCircle } from 'lucide-react'
 import { LABEL_COLORS, LabelColorName } from '@/lib/types'
 import { cn } from '@/lib/utils'
-import { useLabels, Label } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 import { useLanguage } from '@/lib/i18n'
 
 interface LabelManagerProps {
@@ -26,7 +26,7 @@ interface LabelManagerProps {
 }
 
 export function LabelManager({ existingLabels, notebookId, onUpdate }: LabelManagerProps) {
-  const { labels, loading, addLabel, updateLabel, deleteLabel, getLabelColor } = useLabels()
+  const { labels, loading, addLabel, updateLabel, deleteLabel, getLabelColor } = useNotebooks()
   const { t } = useLanguage()
   const [open, setOpen] = useState(false)
   const [newLabel, setNewLabel] = useState('')
@@ -45,18 +45,11 @@ export function LabelManager({ existingLabels, notebookId, onUpdate }: LabelMana
 
     if (trimmed && !selectedLabels.includes(trimmed)) {
       try {
-        // NotebookId is REQUIRED for label creation (PRD R2)
-        if (!notebookId) {
-          setErrorMessage(t('labels.notebookRequired'))
-          console.error(t('labels.notebookRequired'))
-          return
-        }
-
         // Get existing label color or use random
         const existingLabel = labels.find(l => l.name === trimmed)
         const color = existingLabel?.color || (Object.keys(LABEL_COLORS) as LabelColorName[])[Math.floor(Math.random() * Object.keys(LABEL_COLORS).length)]
 
-        await addLabel(trimmed, color, notebookId)
+        await addLabel(trimmed, color)
         const updated = [...selectedLabels, trimmed]
         setSelectedLabels(updated)
         setNewLabel('')
diff --git a/memento-note/components/label-selector.tsx b/memento-note/components/label-selector.tsx
index 6cf6abd..b28e1c0 100644
--- a/memento-note/components/label-selector.tsx
+++ b/memento-note/components/label-selector.tsx
@@ -7,7 +7,7 @@ import { Badge } from '@/components/ui/badge'
 import { Input } from '@/components/ui/input'
 import { Tag, Plus, Check } from 'lucide-react'
 import { cn } from '@/lib/utils'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 import { LabelBadge } from './label-badge'
 import { useLanguage } from '@/lib/i18n'
 
@@ -26,7 +26,7 @@ export function LabelSelector({
   triggerLabel,
   align = 'start',
 }: LabelSelectorProps) {
-  const { labels, loading, addLabel } = useLabels()
+  const { labels, isLoading: loading, addLabel } = useNotebooks()
   const { t } = useLanguage()
   const [search, setSearch] = useState('')
 
diff --git a/memento-note/components/masonry-grid.tsx b/memento-note/components/masonry-grid.tsx
index 25cad3e..afb6541 100644
--- a/memento-note/components/masonry-grid.tsx
+++ b/memento-note/components/masonry-grid.tsx
@@ -22,7 +22,7 @@ import { CSS } from '@dnd-kit/utilities';
 import { Note } from '@/lib/types';
 import { NoteCard } from './note-card';
 import { updateFullOrderWithoutRevalidation } from '@/app/actions/notes';
-import { useNotebookDrag } from '@/context/notebook-drag-context';
+import { useEditorUI } from '@/context/editor-ui-context';
 import { useLanguage } from '@/lib/i18n';
 import { useCardSizeMode } from '@/hooks/use-card-size-mode';
 import dynamic from 'next/dynamic';
@@ -175,7 +175,7 @@ export function MasonryGrid({
 }: MasonryGridProps) {
   const { t } = useLanguage();
   const [editingNote, setEditingNote] = useState<{ note: Note; readOnly?: boolean } | null>(null);
-  const { startDrag, endDrag, draggedNoteId } = useNotebookDrag();
+  const { startDrag, endDrag, draggedNoteId } = useEditorUI();
   const cardSizeMode = useCardSizeMode();
   const isUniformMode = cardSizeMode === 'uniform';
 
diff --git a/memento-note/components/note-card.tsx b/memento-note/components/note-card.tsx
index 537124d..553cdd5 100644
--- a/memento-note/components/note-card.tsx
+++ b/memento-note/components/note-card.tsx
@@ -58,10 +58,9 @@ const ConnectionsOverlay = dynamic(() => import('./connections-overlay').then(m
 const ComparisonModal = dynamic(() => import('./comparison-modal').then(m => ({ default: m.ComparisonModal })), { ssr: false })
 const FusionModal = dynamic(() => import('./fusion-modal').then(m => ({ default: m.FusionModal })), { ssr: false })
 import { useConnectionsCompare } from '@/hooks/use-connections-compare'
-import { useLabels } from '@/context/LabelContext'
+import { useNotebooks } from '@/context/notebooks-context'
 import { useNoteRefresh } from '@/context/NoteRefreshContext'
 import { useLanguage } from '@/lib/i18n'
-import { useNotebooks } from '@/context/notebooks-context'
 import { toast } from 'sonner'
 
 // Mapping of supported languages to date-fns locales
@@ -172,11 +171,10 @@ export const NoteCard = memo(function NoteCard({
 }: NoteCardProps) {
   const router = useRouter()
   const searchParams = useSearchParams()
-  const { refreshLabels } = useLabels()
   const { triggerRefresh } = useNoteRefresh()
   const { data: session } = useSession()
   const { t, language } = useLanguage()
-  const { notebooks, moveNoteToNotebookOptimistic } = useNotebooks()
+  const { notebooks, moveNoteToNotebookOptimistic, refreshLabels } = useNotebooks()
   const [, startTransition] = useTransition()
   const [isDeleting, setIsDeleting] = useState(false)
   const [isHidden, setIsHidden] = useState(false)
diff --git a/memento-note/components/note-editor/index.tsx b/memento-note/components/note-editor/index.tsx
new file mode 100644
index 0000000..14cba37
--- /dev/null
+++ b/memento-note/components/note-editor/index.tsx
@@ -0,0 +1,37 @@
+'use client'
+
+import { NoteEditorProvider, useNoteEditorContext } from './note-editor-context'
+import { NoteEditorFullPage } from './note-editor-full-page'
+import { NoteEditorDialog } from './note-editor-dialog'
+import { Note } from '@/lib/types'
+
+interface NoteEditorProps {
+  note: Note
+  readOnly?: boolean
+  onClose: () => void
+  fullPage?: boolean
+}
+
+export function NoteEditor({ note, readOnly, onClose, fullPage = false }: NoteEditorProps) {
+  return (
+    <NoteEditorProvider note={note} readOnly={readOnly} fullPage={fullPage}>
+      {fullPage ? (
+        <NoteEditorFullPage onClose={onClose} />
+      ) : (
+        <NoteEditorDialog onClose={onClose} />
+      )}
+    </NoteEditorProvider>
+  )
+}
+
+// Re-export context hook for backwards compatibility
+export { useNoteEditorContext } from './note-editor-context'
+
+// Re-export sub-components for advanced usage
+export { NoteEditorFullPage } from './note-editor-full-page'
+export { NoteEditorDialog } from './note-editor-dialog'
+export { NoteEditorProvider } from './note-editor-context'
+export { NoteTitleBlock } from './note-title-block'
+export { NoteContentArea } from './note-content-area'
+export { NoteMetadataSection } from './note-metadata-section'
+export { NoteEditorToolbar } from './note-editor-toolbar'
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-content-area.tsx b/memento-note/components/note-editor/note-content-area.tsx
new file mode 100644
index 0000000..5598e15
--- /dev/null
+++ b/memento-note/components/note-editor/note-content-area.tsx
@@ -0,0 +1,179 @@
+'use client'
+
+import { useNoteEditorContext } from './note-editor-context'
+import { RichTextEditor } from '@/components/rich-text-editor'
+import { MarkdownContent } from '@/components/markdown-content'
+import { MarkdownSlashCommands } from '@/components/markdown-slash-commands'
+import { GhostTags } from '@/components/ghost-tags'
+import { Textarea } from '@/components/ui/textarea'
+import { Input } from '@/components/ui/input'
+import { Button } from '@/components/ui/button'
+import { Checkbox } from '@/components/ui/checkbox'
+import { X, Plus } from 'lucide-react'
+import { useLanguage } from '@/lib/i18n'
+import { cn } from '@/lib/utils'
+
+export function NoteContentArea() {
+  const { state, actions, readOnly, fullPage, textareaRef } = useNoteEditorContext()
+  const { t } = useLanguage()
+
+  const uploadImageFile = async (file: File) => {
+    const formData = new FormData()
+    formData.append('file', file)
+    const response = await fetch('/api/upload', { method: 'POST', body: formData })
+    if (!response.ok) throw new Error('Upload failed')
+    const data = await response.json()
+    return data.url
+  }
+
+  if (state.noteType === 'richtext') {
+    if (fullPage) {
+      return (
+        <div className="fullpage-editor">
+          <RichTextEditor
+            content={state.content}
+            onChange={(v: string) => actions.setContent(v)}
+            className="min-h-[280px]"
+            onImageUpload={uploadImageFile}
+          />
+        </div>
+      )
+    }
+    return (
+      <RichTextEditor
+        content={state.content}
+        onChange={actions.setContent}
+        className="min-h-[200px]"
+        onImageUpload={uploadImageFile}
+      />
+    )
+  }
+
+  if (state.noteType === 'markdown' && state.showMarkdownPreview) {
+    return (
+      <div
+        className={cn(
+          'min-h-[280px] cursor-text prose prose-lg dark:prose-invert max-w-none leading-relaxed',
+          fullPage ? '' : 'p-3 rounded-md border border-border/40 bg-muted/20'
+        )}
+        onClick={() => !readOnly && actions.setShowMarkdownPreview(false)}
+      >
+        <MarkdownContent content={state.content} />
+        {!readOnly && (
+          <p className="text-[11px] text-foreground/30 mt-8 select-none not-prose italic">
+            Cliquez pour éditer
+          </p>
+        )}
+      </div>
+    )
+  }
+
+  if (state.noteType === 'markdown' || state.noteType === 'text') {
+    if (fullPage) {
+      return (
+        <div className="relative">
+          <textarea
+            ref={textareaRef}
+            dir="auto"
+            placeholder={t('notes.takeNote') || "Commencez à écrire… tapez '/' pour les commandes"}
+            value={state.content}
+            onFocus={() => actions.setShowMarkdownPreview(false)}
+            onChange={(e) => actions.setContent(e.target.value)}
+            disabled={readOnly}
+            className="w-full min-h-[280px] border-0 outline-none px-0 bg-transparent editor-body leading-relaxed resize-none overflow-hidden placeholder:text-foreground/30 text-foreground"
+          />
+          {!readOnly && (
+            <MarkdownSlashCommands
+              textareaRef={textareaRef as React.RefObject<HTMLTextAreaElement>}
+              value={state.content}
+              onChange={(v: string) => actions.setContent(v)}
+            />
+          )}
+        </div>
+      )
+    }
+
+    // Dialog mode
+    return (
+      <div className="space-y-2">
+        <Textarea
+          dir="auto"
+          placeholder={state.isMarkdown ? t('notes.takeNoteMarkdown') : t('notes.takeNote')}
+          value={state.content}
+          onChange={(e) => actions.setContent(e.target.value)}
+          disabled={readOnly}
+          className={cn(
+            "min-h-[200px] border-0 focus-visible:ring-0 px-0 bg-transparent resize-none text-sm leading-relaxed",
+            readOnly && "cursor-default"
+          )}
+        />
+        <GhostTags
+          suggestions={state.filteredSuggestions}
+          addedTags={state.labels}
+          isAnalyzing={state.isAnalyzingSuggestions}
+          onSelectTag={actions.handleSelectGhostTag}
+          onDismissTag={actions.handleDismissGhostTag}
+        />
+      </div>
+    )
+  }
+
+  // Checklist mode
+  if (fullPage) {
+    return (
+      <div className="space-y-2">
+        {state.checkItems.map((item) => (
+          <div key={item.id} className="flex items-start gap-2 group">
+            <Checkbox
+              checked={item.checked}
+              onCheckedChange={() => actions.handleCheckItem(item.id)}
+              className="mt-2"
+            />
+            <Input
+              value={item.text}
+              onChange={(e) => actions.handleUpdateCheckItem(item.id, e.target.value)}
+              placeholder={t('notes.listItem')}
+              className="flex-1 border-0 focus-visible:ring-0 px-0 bg-transparent"
+            />
+            <Button variant="ghost" size="sm" className="opacity-0 group-hover:opacity-100 h-8 w-8 p-0"
+              onClick={() => actions.handleRemoveCheckItem(item.id)}>
+              <X className="h-4 w-4" />
+            </Button>
+          </div>
+        ))}
+        <Button variant="ghost" size="sm" onClick={actions.handleAddCheckItem} className="text-gray-600 dark:text-gray-400">
+          <Plus className="h-4 w-4 mr-1" />
+          {t('notes.addItem')}
+        </Button>
+      </div>
+    )
+  }
+
+  return (
+    <div className="space-y-2">
+      {state.checkItems.map((item) => (
+        <div key={item.id} className="flex items-start gap-2 group">
+          <Checkbox
+            checked={item.checked}
+            onCheckedChange={() => actions.handleCheckItem(item.id)}
+            className="mt-2"
+          />
+          <Input
+            value={item.text}
+            onChange={(e) => actions.handleUpdateCheckItem(item.id, e.target.value)}
+            placeholder={t('notes.listItem')}
+            className="flex-1 border-0 focus-visible:ring-0 px-0 bg-transparent"
+          />
+          <Button variant="ghost" size="sm" className="opacity-0 group-hover:opacity-100 h-8 w-8 p-0"
+            onClick={() => actions.handleRemoveCheckItem(item.id)}>
+            <X className="h-4 w-4" />
+          </Button>
+        </div>
+      ))}
+      <Button variant="ghost" size="sm" onClick={actions.handleAddCheckItem} className="text-gray-600 dark:text-gray-400">
+        <Plus className="h-4 w-4 mr-1" />
+        {t('notes.addItem')}
+      </Button>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-editor-context.tsx b/memento-note/components/note-editor/note-editor-context.tsx
new file mode 100644
index 0000000..ca4a6fd
--- /dev/null
+++ b/memento-note/components/note-editor/note-editor-context.tsx
@@ -0,0 +1,796 @@
+'use client'
+
+import { createContext, useContext, useState, useEffect, useRef, useMemo, useCallback, ReactNode } from 'react'
+import { Note, CheckItem, NOTE_COLORS, NoteColor, LinkMetadata, NoteType, NoteSize } from '@/lib/types'
+import { updateNote, createNote, cleanupOrphanedImages, leaveSharedNote, deleteNote } from '@/app/actions/notes'
+import { fetchLinkMetadata } from '@/app/actions/scrape'
+import { useNotebooks } from '@/context/notebooks-context'
+import { useNoteRefresh } from '@/context/NoteRefreshContext'
+import { useAutoTagging } from '@/hooks/use-auto-tagging'
+import { useTitleSuggestions } from '@/hooks/use-title-suggestions'
+import { toast } from 'sonner'
+import { useLanguage } from '@/lib/i18n'
+import { useSession } from 'next-auth/react'
+import { getAISettings } from '@/app/actions/ai-settings'
+import { extractImagesFromHTML } from '@/lib/utils'
+import type { TitleSuggestion } from '@/hooks/use-title-suggestions'
+import type { TagSuggestion } from '@/lib/ai/types'
+import type { NoteEditorState, NoteEditorActions, NoteEditorContextValue } from './types'
+
+const NoteEditorContext = createContext<NoteEditorContextValue | undefined>(undefined)
+
+interface NoteEditorProviderProps {
+  note: Note
+  readOnly?: boolean
+  fullPage?: boolean
+  children: ReactNode
+}
+
+export function NoteEditorProvider({ note, readOnly = false, fullPage = false, children }: NoteEditorProviderProps) {
+  const { data: session } = useSession()
+  const { t } = useLanguage()
+  const { labels: globalLabels, addLabel, refreshLabels, setNotebookId: setContextNotebookId, notebooks } = useNotebooks()
+  const { triggerRefresh } = useNoteRefresh()
+
+  const [aiAssistantEnabled, setAiAssistantEnabled] = useState(true)
+  const [autoLabelingEnabled, setAutoLabelingEnabled] = useState(true)
+
+  useEffect(() => {
+    if (session?.user?.id) {
+      getAISettings(session.user.id).then(settings => {
+        setAiAssistantEnabled(settings.paragraphRefactor !== false)
+        setAutoLabelingEnabled(settings.autoLabeling !== false)
+      }).catch(err => console.error("Failed to fetch AI settings", err))
+    }
+  }, [session?.user?.id])
+
+  // Core content state
+  const [title, setTitle] = useState(note.title || '')
+  const [content, setContent] = useState(note.content)
+  const [checkItems, setCheckItems] = useState<CheckItem[]>(note.checkItems || [])
+  const [labels, setLabels] = useState<string[]>(note.labels || [])
+  const [images, setImages] = useState<string[]>(note.images || [])
+  const [links, setLinks] = useState<LinkMetadata[]>(note.links || [])
+  const [newLabel, setNewLabel] = useState('')
+  const [color, setColor] = useState(note.color)
+  const [size, setSize] = useState<NoteSize>(note.size || 'small')
+  const [isSaving, setIsSaving] = useState(false)
+  const [removedImageUrls, setRemovedImageUrls] = useState<string[]>([])
+  const [noteType, setNoteType] = useState<NoteType>(note.type)
+  const isMarkdown = noteType === 'markdown'
+  const [showMarkdownPreview, setShowMarkdownPreview] = useState(note.type === 'markdown')
+
+  // Refs
+  const fileInputRef = useRef<HTMLInputElement>(null)
+  const textareaRef = useRef<HTMLTextAreaElement>(null)
+  const prevNoteRef = useRef(note)
+
+  // CRITICAL: Sync state when note.id changes (lines 101-116 from original)
+  useEffect(() => {
+    if (note.id !== prevNoteRef.current.id || note.content !== prevNoteRef.current.content || note.title !== prevNoteRef.current.title) {
+      setTitle(note.title || '')
+      setContent(note.content)
+      setCheckItems(note.checkItems || [])
+      setLabels(note.labels || [])
+      setImages(note.images || [])
+      setLinks(note.links || [])
+      setColor(note.color)
+      setSize(note.size || 'small')
+      setNoteType(note.type)
+      setShowMarkdownPreview(note.type === 'markdown')
+      setCurrentReminder(note.reminder ? new Date(note.reminder as unknown as string) : null)
+    }
+    prevNoteRef.current = note
+  }, [note])
+
+  // Update context notebookId when note changes
+  useEffect(() => {
+    setContextNotebookId(note.notebookId || null)
+  }, [note.notebookId, setContextNotebookId])
+
+  // Auto-tagging hook
+  const { suggestions, isAnalyzing: isAnalyzingSuggestions } = useAutoTagging({
+    content: noteType !== 'checklist' ? content : '',
+    notebookId: note.notebookId,
+    enabled: noteType !== 'checklist' && autoLabelingEnabled
+  })
+
+  // Reminder state
+  const [showReminderDialog, setShowReminderDialog] = useState(false)
+  const [currentReminder, setCurrentReminder] = useState<Date | null>(
+    note.reminder ? new Date(note.reminder as unknown as string) : null
+  )
+
+  // Link state
+  const [showLinkDialog, setShowLinkDialog] = useState(false)
+  const [linkUrl, setLinkUrl] = useState('')
+
+  // Title suggestions state
+  const [titleSuggestions, setTitleSuggestions] = useState<TitleSuggestion[]>([])
+  const [isGeneratingTitles, setIsGeneratingTitles] = useState(false)
+
+  // Reformulation state
+  const [isReformulating, setIsReformulating] = useState(false)
+  const [reformulationModal, setReformulationModal] = useState<{
+    originalText: string
+    reformulatedText: string
+    option: string
+  } | null>(null)
+
+  // AI processing state
+  const [isProcessingAI, setIsProcessingAI] = useState(false)
+  const [aiOpen, setAiOpen] = useState(false)
+  const [infoOpen, setInfoOpen] = useState(false)
+  const [isDirty, setIsDirty] = useState(false)
+
+  // fullPage — auto title suggestions
+  const [dismissedTitleSuggestions, setDismissedTitleSuggestions] = useState(false)
+  const { suggestions: autoTitleSuggestions } = useTitleSuggestions({
+    content,
+    enabled: fullPage && !title && !dismissedTitleSuggestions,
+  })
+
+  // Track previous content for copilot action undo
+  const [previousContentForCopilot, setPreviousContentForCopilot] = useState<string | null>(null)
+
+  // Memory Echo Connections state
+  const [comparisonNotes, setComparisonNotes] = useState<Array<Partial<Note>>>([])
+  const [fusionNotes, setFusionNotes] = useState<Array<Partial<Note>>>([])
+
+  // Tags dismissed by the user for this session
+  const [dismissedTags, setDismissedTags] = useState<string[]>([])
+
+  // Filter suggestions to exclude dismissed ones
+  // and those already present on the note
+  const existingLabelsLower = (note.labels || []).map((l) => l.toLowerCase())
+  const filteredSuggestions = suggestions.filter(s => {
+    if (!s || !s.tag) return false
+    return !dismissedTags.includes(s.tag) && !existingLabelsLower.includes(s.tag.toLowerCase())
+  })
+
+  const colorClasses = NOTE_COLORS[color as NoteColor] || NOTE_COLORS.default
+
+  const uploadImageFile = async (file: File) => {
+    const formData = new FormData()
+    formData.append('file', file)
+    const response = await fetch('/api/upload', { method: 'POST', body: formData })
+    if (!response.ok) throw new Error('Upload failed')
+    const data = await response.json()
+    return data.url
+  }
+
+  const handleImageUpload = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const files = e.target.files
+    if (!files) return
+
+    for (const file of Array.from(files)) {
+      try {
+        const url = await uploadImageFile(file)
+        setImages(prev => [...prev, url])
+      } catch (error) {
+        console.error('Upload error:', error)
+        toast.error(t('notes.uploadFailed', { filename: file.name }))
+      }
+    }
+  }
+
+  // Paste handler: upload clipboard images
+  useEffect(() => {
+    const handlePaste = async (e: ClipboardEvent) => {
+      if (noteType === 'richtext' && (e.target as HTMLElement)?.closest('.notion-editor')) return;
+      const items = e.clipboardData?.items
+      if (!items) return
+      for (const item of Array.from(items)) {
+        if (item.type.startsWith('image/')) {
+          e.preventDefault()
+          const file = item.getAsFile()
+          if (!file) continue
+          try {
+            const url = await uploadImageFile(file)
+            setImages(prev => [...prev, url])
+          } catch {
+            toast.error(t('notes.uploadFailed', { filename: 'pasted image' }))
+          }
+        }
+      }
+    }
+    document.addEventListener('paste', handlePaste, { capture: true })
+    return () => document.removeEventListener('paste', handlePaste, { capture: true } as any)
+  }, [t, noteType])
+
+  // Auto-grow textarea as content grows
+  useEffect(() => {
+    const el = textareaRef.current
+    if (!el) return
+    el.style.height = 'auto'
+    el.style.height = Math.max(el.scrollHeight, 280) + 'px'
+  }, [content])
+
+  // Also auto-grow when switching FROM preview TO edit mode
+  useEffect(() => {
+    if (showMarkdownPreview) return // we're in preview, textarea not mounted
+    // Defer one frame so the textarea is in the DOM
+    const raf = requestAnimationFrame(() => {
+      const el = textareaRef.current
+      if (!el) return
+      el.style.height = 'auto'
+      el.style.height = Math.max(el.scrollHeight, 280) + 'px'
+      el.focus()
+    })
+    return () => cancelAnimationFrame(raf)
+  }, [showMarkdownPreview])
+
+  const handleRemoveImage = (index: number) => {
+    const removedUrl = images[index]
+    setImages(images.filter((_, i) => i !== index))
+    // Track removed images for cleanup on save
+    if (removedUrl) {
+      setRemovedImageUrls(prev => [...prev, removedUrl])
+    }
+  }
+
+  const handleAddLink = async () => {
+    if (!linkUrl) return
+
+    setShowLinkDialog(false)
+
+    try {
+      const metadata = await fetchLinkMetadata(linkUrl)
+      if (metadata) {
+        setLinks(prev => [...prev, metadata])
+        toast.success(t('notes.linkAdded'))
+      } else {
+        toast.warning(t('notes.linkMetadataFailed'))
+        setLinks(prev => [...prev, { url: linkUrl, title: linkUrl }])
+      }
+    } catch (error) {
+      console.error('Failed to add link:', error)
+      toast.error(t('notes.linkAddFailed'))
+    } finally {
+      setLinkUrl('')
+    }
+  }
+
+  const handleRemoveLink = (index: number) => {
+    setLinks(links.filter((_, i) => i !== index))
+  }
+
+  const allImages = useMemo(() => {
+    const extracted = noteType === 'richtext' ? extractImagesFromHTML(content) : [];
+    return Array.from(new Set([...images, ...extracted]));
+  }, [images, content, noteType]);
+
+  const handleGenerateTitles = async () => {
+    const fullContentForAI = [
+      content,
+      ...links.map(l => `${l.title || ''} ${l.description || ''}`)
+    ]
+    .join(' ')
+    .trim()
+
+    const wordCount = fullContentForAI.split(/\s+/).filter(word => word.length > 0).length
+
+    if (wordCount < 10) {
+      toast.error(t('ai.titleGenerationMinWords', { count: wordCount }))
+      return
+    }
+
+    setIsGeneratingTitles(true)
+    try {
+      const response = await fetch('/api/ai/title-suggestions', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ content: fullContentForAI }),
+      })
+
+      if (!response.ok) {
+        const errorData = await response.json()
+        throw new Error(errorData.error || t('ai.titleGenerationError'))
+      }
+
+      const data = await response.json()
+      setTitleSuggestions(data.suggestions || [])
+      toast.success(t('ai.titlesGenerated', { count: data.suggestions.length }))
+    } catch (error: any) {
+      console.error('Error generating titles:', error)
+      toast.error(error.message || t('ai.titleGenerationFailed'))
+    } finally {
+      setIsGeneratingTitles(false)
+    }
+  }
+
+  const handleSelectTitle = (title: string) => {
+    setTitle(title)
+    setTitleSuggestions([])
+    toast.success(t('ai.titleApplied'))
+  }
+
+  const handleReformulate = async (option: 'clarify' | 'shorten' | 'improve') => {
+    const selectedText = window.getSelection()?.toString()
+
+    if (!selectedText && (!content || content.trim().length === 0)) {
+      toast.error(t('ai.reformulationNoText'))
+      return
+    }
+
+    let textToReformulate: string
+    if (selectedText && selectedText.trim().split(/\s+/).filter(word => word.length > 0).length >= 10) {
+      textToReformulate = selectedText
+    } else {
+      textToReformulate = content
+      if (selectedText) {
+        toast.info(t('ai.reformulationSelectionTooShort'))
+      }
+    }
+
+    const wordCount = textToReformulate.trim().split(/\s+/).filter(word => word.length > 0).length
+
+    if (wordCount < 10) {
+      toast.error(t('ai.reformulationMinWords', { count: wordCount }))
+      return
+    }
+
+    if (wordCount > 500) {
+      toast.error(t('ai.reformulationMaxWords'))
+      return
+    }
+
+    setIsReformulating(true)
+    try {
+      const response = await fetch('/api/ai/reformulate', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({
+          text: textToReformulate,
+          option: option
+        }),
+      })
+
+      if (!response.ok) {
+        const errorData = await response.json()
+        throw new Error(errorData.error || t('ai.reformulationError'))
+      }
+
+      const data = await response.json()
+
+      setReformulationModal({
+        originalText: data.originalText,
+        reformulatedText: data.reformulatedText,
+        option: data.option
+      })
+    } catch (error: any) {
+      console.error('Error reformulating:', error)
+      toast.error(error.message || t('ai.reformulationFailed'))
+    } finally {
+      setIsReformulating(false)
+    }
+  }
+
+  const handleClarifyDirect = async () => {
+    const wordCount = content.split(/\s+/).filter(w => w.length > 0).length
+    if (!content || wordCount < 10) {
+      toast.error(t('ai.reformulationMinWords', { count: wordCount }))
+      return
+    }
+
+    setIsProcessingAI(true)
+    try {
+      const response = await fetch('/api/ai/reformulate', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ text: content, option: 'clarify' })
+      })
+      const data = await response.json()
+      if (!response.ok) throw new Error(data.error || t('notes.clarifyFailed'))
+      setContent(data.reformulatedText || data.text)
+      toast.success(t('ai.reformulationApplied'))
+    } catch (error) {
+      console.error('Clarify error:', error)
+      toast.error(t('notes.clarifyFailed'))
+    } finally {
+      setIsProcessingAI(false)
+    }
+  }
+
+  const handleShortenDirect = async () => {
+    const wordCount = content.split(/\s+/).filter(w => w.length > 0).length
+    if (!content || wordCount < 10) {
+      toast.error(t('ai.reformulationMinWords', { count: wordCount }))
+      return
+    }
+
+    setIsProcessingAI(true)
+    try {
+      const response = await fetch('/api/ai/reformulate', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ text: content, option: 'shorten' })
+      })
+      const data = await response.json()
+      if (!response.ok) throw new Error(data.error || t('notes.shortenFailed'))
+      setContent(data.reformulatedText || data.text)
+      toast.success(t('ai.reformulationApplied'))
+    } catch (error) {
+      console.error('Shorten error:', error)
+      toast.error(t('notes.shortenFailed'))
+    } finally {
+      setIsProcessingAI(false)
+    }
+  }
+
+  const handleImproveDirect = async () => {
+    const wordCount = content.split(/\s+/).filter(w => w.length > 0).length
+    if (!content || wordCount < 10) {
+      toast.error(t('ai.reformulationMinWords', { count: wordCount }))
+      return
+    }
+
+    setIsProcessingAI(true)
+    try {
+      const response = await fetch('/api/ai/reformulate', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ text: content, option: 'improve' })
+      })
+      const data = await response.json()
+      if (!response.ok) throw new Error(data.error || t('notes.improveFailed'))
+      setContent(data.reformulatedText || data.text)
+      toast.success(t('ai.reformulationApplied'))
+    } catch (error) {
+      console.error('Improve error:', error)
+      toast.error(t('notes.improveFailed'))
+    } finally {
+      setIsProcessingAI(false)
+    }
+  }
+
+  const handleTransformMarkdown = async () => {
+    const wordCount = content.split(/\s+/).filter(w => w.length > 0).length
+    if (!content || wordCount < 10) {
+      toast.error(t('ai.reformulationMinWords', { count: wordCount }))
+      return
+    }
+
+    if (wordCount > 500) {
+      toast.error(t('ai.reformulationMaxWords'))
+      return
+    }
+
+    setIsProcessingAI(true)
+    try {
+      const response = await fetch('/api/ai/transform-markdown', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ text: content })
+      })
+      const data = await response.json()
+      if (!response.ok) throw new Error(data.error || t('notes.transformFailed'))
+
+      setContent(data.transformedText)
+      setNoteType('markdown')
+      setShowMarkdownPreview(false)
+
+      toast.success(t('ai.transformSuccess'))
+    } catch (error) {
+      console.error('Transform to markdown error:', error)
+      toast.error(t('ai.transformError'))
+    } finally {
+      setIsProcessingAI(false)
+    }
+  }
+
+  const handleApplyRefactor = () => {
+    if (!reformulationModal) return
+
+    const selectedText = window.getSelection()?.toString()
+    if (selectedText) {
+      setContent(reformulationModal.reformulatedText)
+    } else {
+      setContent(reformulationModal.reformulatedText)
+    }
+
+    setReformulationModal(null)
+    toast.success(t('ai.reformulationApplied'))
+  }
+
+  const handleReminderSave = async (date: Date) => {
+    if (date < new Date()) {
+      toast.error(t('notes.reminderPastError'))
+      return
+    }
+    setCurrentReminder(date)
+    try {
+      await updateNote(note.id, { reminder: date })
+      toast.success(t('notes.reminderSet', { datetime: date.toLocaleString() }))
+    } catch {
+      toast.error(t('notebook.savingReminder'))
+    }
+  }
+
+  const handleRemoveReminder = async () => {
+    setCurrentReminder(null)
+    try {
+      await updateNote(note.id, { reminder: null })
+      toast.success(t('notes.reminderRemoved'))
+    } catch {
+      toast.error(t('notebook.removingReminder'))
+    }
+  }
+
+  const handleSave = async () => {
+    setIsSaving(true)
+    try {
+      await updateNote(note.id, {
+        title: title.trim() || null,
+        content: noteType !== 'checklist' ? content : '',
+        checkItems: noteType === 'checklist' ? checkItems : null,
+        labels,
+        images,
+        links,
+        color,
+        reminder: currentReminder,
+        isMarkdown: noteType === 'markdown',
+        type: noteType,
+        size,
+      })
+
+      if (removedImageUrls.length > 0) {
+        cleanupOrphanedImages(removedImageUrls, note.id).catch(() => {})
+      }
+
+      await refreshLabels()
+      triggerRefresh()
+
+      // Note: onClose is handled by the composition component
+    } catch (error) {
+      console.error('Failed to save note:', error)
+    } finally {
+      setIsSaving(false)
+    }
+  }
+
+  const handleCheckItem = (id: string) => {
+    setCheckItems(items =>
+      items.map(item =>
+        item.id === id ? { ...item, checked: !item.checked } : item
+      )
+    )
+  }
+
+  const handleUpdateCheckItem = (id: string, text: string) => {
+    setCheckItems(items =>
+      items.map(item => (item.id === id ? { ...item, text } : item))
+    )
+  }
+
+  const handleAddCheckItem = () => {
+    setCheckItems([
+      ...checkItems,
+      { id: Date.now().toString(), text: '', checked: false },
+    ])
+  }
+
+  const handleRemoveCheckItem = (id: string) => {
+    setCheckItems(items => items.filter(item => item.id !== id))
+  }
+
+  const handleSelectGhostTag = async (tag: string) => {
+    const tagExists = labels.some(l => l.toLowerCase() === tag.toLowerCase())
+
+    if (!tagExists) {
+      setLabels(prev => [...prev, tag])
+
+      const globalExists = globalLabels.some(l => l.name.toLowerCase() === tag.toLowerCase())
+      if (!globalExists) {
+        try {
+          await addLabel(tag)
+        } catch (err) {
+          console.error('Error creating auto-label:', err)
+        }
+      }
+      toast.success(t('ai.tagAdded', { tag }))
+    }
+  }
+
+  const handleDismissGhostTag = (tag: string) => {
+    setDismissedTags(prev => [...prev, tag])
+  }
+
+  const handleRemoveLabel = (label: string) => {
+    setLabels(labels.filter(l => l !== label))
+  }
+
+  const handleMakeCopy = async () => {
+    try {
+      const newNote = await createNote({
+        title: `${title || t('notes.untitled')} (${t('notes.copy')})`,
+        content: content,
+        color: color,
+        checkItems: checkItems,
+        labels: labels,
+        images: images,
+        links: links,
+        isMarkdown: noteType === 'markdown',
+        type: noteType,
+        size: size,
+      })
+      toast.success(t('notes.copySuccess'))
+      triggerRefresh()
+      // Note: onClose is handled by the composition component
+    } catch (error) {
+      console.error('Failed to copy note:', error)
+      toast.error(t('notes.copyFailed'))
+    }
+  }
+
+  // Save in place (fullPage) — without closing
+  const handleSaveInPlace = async () => {
+    setIsSaving(true)
+    try {
+      await updateNote(note.id, {
+        title: title.trim() || null,
+        content: noteType !== 'checklist' ? content : '',
+        checkItems: noteType === 'checklist' ? checkItems : null,
+        labels,
+        images,
+        links,
+        color,
+        reminder: currentReminder,
+        isMarkdown: noteType === 'markdown',
+        type: noteType,
+        size,
+      })
+      if (removedImageUrls.length > 0) {
+        cleanupOrphanedImages(removedImageUrls, note.id).catch(() => {})
+      }
+      await refreshLabels()
+      triggerRefresh()
+      setIsDirty(false)
+      toast.success('Note sauvegardée !')
+    } catch (error) {
+      console.error('Failed to save note:', error)
+      toast.error('Erreur lors de la sauvegarde.')
+    } finally {
+      setIsSaving(false)
+    }
+  }
+
+  // Ctrl+S / Cmd+S shortcut — save in place in fullPage mode
+  useEffect(() => {
+    if (!fullPage) return
+    const handler = (e: KeyboardEvent) => {
+      if ((e.ctrlKey || e.metaKey) && e.key === 's') {
+        e.preventDefault()
+        handleSaveInPlace()
+      }
+    }
+    document.addEventListener('keydown', handler)
+    return () => document.removeEventListener('keydown', handler)
+  }, [fullPage, isSaving])
+
+  // Build state object
+  const state: NoteEditorState = useMemo(() => ({
+    title,
+    content,
+    checkItems,
+    labels,
+    images,
+    links,
+    newLabel,
+    color: color as NoteColor,
+    size,
+    noteType,
+    showMarkdownPreview,
+    removedImageUrls,
+    isSaving,
+    isDirty,
+    isProcessingAI,
+    aiOpen,
+    infoOpen,
+    isGeneratingTitles,
+    titleSuggestions,
+    dismissedTitleSuggestions,
+    isReformulating,
+    reformulationModal,
+    previousContentForCopilot,
+    showReminderDialog,
+    currentReminder,
+    showLinkDialog,
+    linkUrl,
+    comparisonNotes,
+    fusionNotes,
+    dismissedTags,
+    filteredSuggestions,
+    isAnalyzingSuggestions,
+    isMarkdown,
+    allImages,
+    colorClasses,
+  }), [
+    title, content, checkItems, labels, images, links, newLabel, color, size, noteType,
+    showMarkdownPreview, removedImageUrls, isSaving, isDirty, isProcessingAI, aiOpen, infoOpen,
+    isGeneratingTitles, titleSuggestions, dismissedTitleSuggestions, isReformulating,
+    reformulationModal, previousContentForCopilot, showReminderDialog, currentReminder,
+    showLinkDialog, linkUrl, comparisonNotes, fusionNotes, dismissedTags, filteredSuggestions,
+    isAnalyzingSuggestions, isMarkdown, allImages, colorClasses
+  ])
+
+  // Build actions object
+  const actions: NoteEditorActions = useMemo(() => ({
+    setTitle: (t) => { setTitle(t); setIsDirty(true); setDismissedTitleSuggestions(true) },
+    setDismissedTitleSuggestions,
+    setContent: (c) => { setContent(c); setIsDirty(true) },
+    setCheckItems,
+    handleCheckItem,
+    handleUpdateCheckItem,
+    handleAddCheckItem,
+    handleRemoveCheckItem,
+    setLabels: (l) => { setLabels(l); setIsDirty(true) },
+    handleSelectGhostTag,
+    handleDismissGhostTag,
+    handleRemoveLabel,
+    setImages,
+    handleImageUpload,
+    handleRemoveImage,
+    uploadImageFile,
+    setLinks,
+    handleAddLink,
+    handleRemoveLink,
+    setNoteType: (type) => { setNoteType(type); setShowMarkdownPreview(type === 'markdown'); setIsDirty(true) },
+    setShowMarkdownPreview: (show) => { setShowMarkdownPreview(show); setIsDirty(true) },
+    setColor: (c) => { setColor(c); setIsDirty(true) },
+    setSize: (s) => { setSize(s); setIsDirty(true) },
+    setShowReminderDialog,
+    setCurrentReminder,
+    handleReminderSave,
+    handleRemoveReminder,
+    setShowLinkDialog,
+    setLinkUrl,
+    handleGenerateTitles,
+    handleSelectTitle,
+    handleReformulate,
+    handleApplyRefactor,
+    handleClarifyDirect,
+    handleShortenDirect,
+    handleImproveDirect,
+    handleTransformMarkdown,
+    handleSave,
+    handleSaveInPlace,
+    handleMakeCopy,
+    setComparisonNotes,
+    setFusionNotes,
+    setReformulationModal,
+    setIsDirty,
+    setAiOpen,
+    setInfoOpen,
+    setIsProcessingAI,
+    setIsGeneratingTitles,
+    setIsAnalyzingSuggestions: (a) => { /* handled by useAutoTagging */ },
+    setPreviousContentForCopilot,
+  }), [])
+
+  const value: NoteEditorContextValue = useMemo(() => ({
+    note,
+    readOnly,
+    fullPage,
+    state,
+    actions,
+    notebooks: notebooks.map(nb => ({ id: nb.id, name: nb.name })),
+    globalLabels,
+    fileInputRef,
+    textareaRef,
+  }), [note, readOnly, fullPage, state, actions, notebooks, globalLabels])
+
+  return (
+    <NoteEditorContext.Provider value={value}>
+      {children}
+    </NoteEditorContext.Provider>
+  )
+}
+
+export function useNoteEditorContext() {
+  const context = useContext(NoteEditorContext)
+  if (context === undefined) {
+    throw new Error('useNoteEditorContext must be used within a NoteEditorProvider')
+  }
+  return context
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-editor-dialog.tsx b/memento-note/components/note-editor/note-editor-dialog.tsx
new file mode 100644
index 0000000..5ee34e4
--- /dev/null
+++ b/memento-note/components/note-editor/note-editor-dialog.tsx
@@ -0,0 +1,345 @@
+'use client'
+
+import { useNoteEditorContext } from './note-editor-context'
+import { NoteTitleBlock } from './note-title-block'
+import { NoteContentArea } from './note-content-area'
+import { NoteMetadataSection } from './note-metadata-section'
+import { EditorImages } from '@/components/editor-images'
+import { ComparisonModal } from '@/components/comparison-modal'
+import { FusionModal } from '@/components/fusion-modal'
+import { ReminderDialog } from '@/components/reminder-dialog'
+import { ContextualAIChat } from '@/components/contextual-ai-chat'
+import { EditorConnectionsSection } from '@/components/editor-connections-section'
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogFooter,
+} from '@/components/ui/dialog'
+import { Input } from '@/components/ui/input'
+import { Button } from '@/components/ui/button'
+import { Badge } from '@/components/ui/badge'
+import { X } from 'lucide-react'
+import { useLanguage } from '@/lib/i18n'
+import { cn } from '@/lib/utils'
+import { toast } from 'sonner'
+import { Note } from '@/lib/types'
+
+interface NoteEditorDialogProps {
+  onClose: () => void
+}
+
+export function NoteEditorDialog({ onClose }: NoteEditorDialogProps) {
+  const { state, actions, note, readOnly, notebooks, fileInputRef } = useNoteEditorContext()
+  const { t } = useLanguage()
+
+  const handleSaveAndClose = async () => {
+    await actions.handleSave()
+    onClose()
+  }
+
+  return (
+    <Dialog open={true} onOpenChange={onClose}>
+      <DialogContent
+        className={cn(
+          '!max-w-[min(95vw,1600px)] max-h-[90vh] overflow-hidden p-0 flex flex-row items-stretch rounded-lg',
+          state.colorClasses
+        )}
+      >
+        <div className="flex-1 min-w-0 flex flex-col overflow-y-auto space-y-4 px-6 py-6">
+          <DialogHeader>
+            <DialogTitle className="sr-only">{t('notes.edit')}</DialogTitle>
+            <div className="flex items-center justify-between">
+              <div className="flex items-center gap-2">
+                <h2 className="text-lg font-semibold">{readOnly ? t('notes.view') : t('notes.edit')}</h2>
+              </div>
+              {readOnly && (
+                <Badge variant="secondary" className="bg-primary/10 text-primary dark:bg-primary/20 dark:text-primary-foreground">
+                  {t('notes.readOnly')}
+                </Badge>
+              )}
+            </div>
+          </DialogHeader>
+
+          <div className="space-y-4">
+            {/* Title */}
+            <NoteTitleBlock />
+
+            {/* Title Suggestions */}
+            {!readOnly && state.titleSuggestions.length > 0 && (
+              <div>
+                {/* TitleSuggestions component */}
+              </div>
+            )}
+
+            {/* Images */}
+            <EditorImages images={state.images} onRemove={actions.handleRemoveImage} />
+
+            {/* Link Previews */}
+            {state.links.length > 0 && (
+              <div className="flex flex-col gap-2">
+                {state.links.map((link, idx) => (
+                  <div key={idx} className="relative group border rounded-lg overflow-hidden bg-white/50 dark:bg-black/20 flex">
+                    {link.imageUrl && (
+                      <div className="w-24 h-24 flex-shrink-0 bg-cover bg-center" style={{ backgroundImage: `url(${link.imageUrl})` }} />
+                    )}
+                    <div className="p-2 flex-1 min-w-0 flex flex-col justify-center">
+                      <h4 className="font-medium text-sm truncate">{link.title || link.url}</h4>
+                      {link.description && <p className="text-xs text-gray-500 truncate">{link.description}</p>}
+                      <a href={link.url} target="_blank" rel="noopener noreferrer" className="text-xs text-primary truncate hover:underline block mt-1">
+                        {new URL(link.url).hostname}
+                      </a>
+                    </div>
+                    <Button
+                      variant="ghost"
+                      size="sm"
+                      className="absolute top-1 right-1 h-6 w-6 p-0 bg-white/50 hover:bg-white opacity-0 group-hover:opacity-100 transition-opacity rounded-full"
+                      onClick={() => actions.handleRemoveLink(idx)}
+                    >
+                      <X className="h-3 w-3" />
+                    </Button>
+                  </div>
+                ))}
+              </div>
+            )}
+
+            {/* Content Area */}
+            <NoteContentArea />
+
+            {/* Metadata Section */}
+            <NoteMetadataSection />
+
+            {/* Memory Echo Connections Section */}
+            {!readOnly && (
+              <EditorConnectionsSection
+                noteId={note.id}
+                onOpenNote={(noteId: string) => {
+                  onClose()
+                  window.location.href = `/?note=${noteId}`
+                }}
+                onCompareNotes={(noteIds: string[]) => {
+                  Promise.all(noteIds.map(async (id: string) => {
+                    try {
+                      const res = await fetch(`/api/notes/${id}`)
+                      if (!res.ok) {
+                        console.error(`Failed to fetch note ${id}`)
+                        return null
+                      }
+                      const data = await res.json()
+                      if (data.success && data.data) {
+                        return data.data
+                      }
+                      return null
+                    } catch (error) {
+                      console.error(`Error fetching note ${id}:`, error)
+                      return null
+                    }
+                  }))
+                    .then(notes => notes.filter((n: any) => n !== null) as Array<Partial<Note>>)
+                    .then(fetchedNotes => {
+                      actions.setComparisonNotes(fetchedNotes)
+                    })
+                }}
+                onMergeNotes={async (noteIds: string[]) => {
+                  const fetchedNotes = await Promise.all(noteIds.map(async (id: string) => {
+                    try {
+                      const res = await fetch(`/api/notes/${id}`)
+                      if (!res.ok) {
+                        console.error(`Failed to fetch note ${id}`)
+                        return null
+                      }
+                      const data = await res.json()
+                      if (data.success && data.data) {
+                        return data.data
+                      }
+                      return null
+                    } catch (error) {
+                      console.error(`Error fetching note ${id}:`, error)
+                      return null
+                    }
+                  }))
+                  actions.setFusionNotes(fetchedNotes.filter((n: any) => n !== null) as Array<Partial<Note>>)
+                }}
+              />
+            )}
+
+            {/* Dialog Toolbar - inline for now */}
+            <div className="flex items-center justify-between pt-3 border-t border-border/30">
+              <div className="flex gap-2">
+                <Button variant="ghost" onClick={onClose}>
+                  {t('general.cancel')}
+                </Button>
+                <Button onClick={handleSaveAndClose} disabled={state.isSaving}>
+                  {state.isSaving ? t('notes.saving') : t('general.save')}
+                </Button>
+              </div>
+            </div>
+          </div>
+
+          <input
+            ref={fileInputRef}
+            type="file"
+            accept="image/*"
+            multiple
+            className="hidden"
+            onChange={actions.handleImageUpload}
+          />
+        </div>
+
+        {/* ── AI Copilot Side Panel ── */}
+        {state.aiOpen && (
+          <ContextualAIChat
+            onClose={() => actions.setAiOpen(false)}
+            noteTitle={state.title}
+            noteContent={state.content}
+            noteImages={state.allImages}
+            noteId={note.id}
+            onApplyToNote={(newContent: string) => {
+              actions.setPreviousContentForCopilot(state.content)
+              actions.setContent(newContent)
+            }}
+            onUndoLastAction={state.previousContentForCopilot !== null ? () => {
+              if (state.previousContentForCopilot !== null) {
+                actions.setContent(state.previousContentForCopilot)
+              }
+              actions.setPreviousContentForCopilot(null)
+            } : undefined}
+            lastActionApplied={state.previousContentForCopilot !== null}
+            notebooks={notebooks}
+          />
+        )}
+      </DialogContent>
+
+      {/* Reminder Dialog */}
+      <ReminderDialog
+        open={state.showReminderDialog}
+        onOpenChange={actions.setShowReminderDialog}
+        currentReminder={state.currentReminder}
+        onSave={actions.handleReminderSave}
+        onRemove={actions.handleRemoveReminder}
+      />
+
+      {/* Link Dialog */}
+      <Dialog open={state.showLinkDialog} onOpenChange={actions.setShowLinkDialog}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>{t('notes.addLink')}</DialogTitle>
+          </DialogHeader>
+          <div className="space-y-4 py-4">
+            <Input
+              placeholder="https://example.com"
+              value={state.linkUrl}
+              onChange={(e) => actions.setLinkUrl(e.target.value)}
+              onKeyDown={(e) => {
+                if (e.key === 'Enter') {
+                  e.preventDefault()
+                  actions.handleAddLink()
+                }
+              }}
+              autoFocus
+            />
+          </div>
+          <DialogFooter>
+            <Button variant="ghost" onClick={() => actions.setShowLinkDialog(false)}>
+              {t('general.cancel')}
+            </Button>
+            <Button onClick={actions.handleAddLink}>
+              {t('general.add')}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+
+      {/* Reformulation Modal */}
+      {state.reformulationModal && (
+        <Dialog open={!!state.reformulationModal} onOpenChange={() => actions.setReformulationModal(null)}>
+          <DialogContent className="max-w-4xl max-h-[80vh] overflow-y-auto">
+            <DialogHeader>
+              <DialogTitle>{t('ai.reformulationComparison')}</DialogTitle>
+            </DialogHeader>
+            <div className="grid grid-cols-2 gap-4 py-4">
+              <div>
+                <h3 className="font-semibold mb-2 text-sm text-gray-600 dark:text-gray-400">{t('ai.original')}</h3>
+                <div className="p-4 bg-gray-50 dark:bg-gray-900 rounded-lg text-sm">
+                  {state.reformulationModal.originalText}
+                </div>
+              </div>
+              <div>
+                <h3 className="font-semibold mb-2 text-sm text-purple-600 dark:text-purple-400">
+                  {t('ai.reformulated')} ({state.reformulationModal.option})
+                </h3>
+                <div className="p-4 bg-purple-50 dark:bg-purple-900/20 rounded-lg text-sm">
+                  {state.reformulationModal.reformulatedText}
+                </div>
+              </div>
+            </div>
+            <DialogFooter>
+              <Button variant="ghost" onClick={() => actions.setReformulationModal(null)}>
+                {t('general.cancel')}
+              </Button>
+              <Button onClick={actions.handleApplyRefactor}>
+                {t('general.apply')}
+              </Button>
+            </DialogFooter>
+          </DialogContent>
+        </Dialog>
+      )}
+
+      {/* Comparison Modal */}
+      {state.comparisonNotes && state.comparisonNotes.length > 0 && (
+        <ComparisonModal
+          isOpen={!!state.comparisonNotes}
+          onClose={() => actions.setComparisonNotes([])}
+          notes={state.comparisonNotes}
+          onOpenNote={(noteId: string) => {
+            onClose()
+            window.location.href = `/?note=${noteId}`
+          }}
+        />
+      )}
+
+      {/* Fusion Modal */}
+      {state.fusionNotes && state.fusionNotes.length > 0 && (
+        <FusionModal
+          isOpen={!!state.fusionNotes}
+          onClose={() => actions.setFusionNotes([])}
+          notes={state.fusionNotes}
+          onConfirmFusion={async ({ title, content }: { title: string; content: string }, options: { keepAllTags: boolean; archiveOriginals: boolean }) => {
+            // Save current first
+            await actions.handleSave()
+
+            // Use createNote directly since handleMakeCopy doesn't handle fusion
+            const { createNote } = await import('@/app/actions/notes')
+            await createNote({
+              title,
+              content,
+              labels: options.keepAllTags
+                ? [...new Set(state.fusionNotes.flatMap(n => n.labels || []))]
+                : state.fusionNotes[0].labels || [],
+              color: state.fusionNotes[0].color,
+              type: 'text',
+              isMarkdown: true,
+              autoGenerated: true,
+              aiProvider: 'fusion',
+              notebookId: state.fusionNotes[0].notebookId ?? undefined
+            })
+
+            // Archive original notes if option is selected
+            if (options.archiveOriginals) {
+              const { updateNote } = await import('@/app/actions/notes')
+              for (const fusionNote of state.fusionNotes) {
+                if (fusionNote.id) {
+                  await updateNote(fusionNote.id, { isArchived: true })
+                }
+              }
+            }
+
+            toast.success(t('toast.notesFusionSuccess'))
+            onClose()
+          }}
+        />
+      )}
+    </Dialog>
+  )
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-editor-full-page.tsx b/memento-note/components/note-editor/note-editor-full-page.tsx
new file mode 100644
index 0000000..3ffb591
--- /dev/null
+++ b/memento-note/components/note-editor/note-editor-full-page.tsx
@@ -0,0 +1,146 @@
+'use client'
+
+import { useNoteEditorContext } from './note-editor-context'
+import { NoteEditorToolbar } from './note-editor-toolbar'
+import { NoteTitleBlock } from './note-title-block'
+import { NoteContentArea } from './note-content-area'
+import { EditorImages } from '@/components/editor-images'
+import { ComparisonModal } from '@/components/comparison-modal'
+import { FusionModal } from '@/components/fusion-modal'
+import { ReminderDialog } from '@/components/reminder-dialog'
+import { ContextualAIChat } from '@/components/contextual-ai-chat'
+import { NoteDocumentInfoPanel } from '@/components/note-document-info-panel'
+import { format } from 'date-fns'
+import { toast } from 'sonner'
+import { Note } from '@/lib/types'
+
+interface NoteEditorFullPageProps {
+  onClose: () => void
+}
+
+export function NoteEditorFullPage({ onClose }: NoteEditorFullPageProps) {
+  const { state, actions, note, readOnly, notebooks, fileInputRef } = useNoteEditorContext()
+
+  const notebookName = notebooks.find(nb => nb.id === note.notebookId)?.name || null
+
+  return (
+    <>
+      {/* ── outer container ── */}
+      <div className="h-full flex items-stretch overflow-hidden transition-all duration-500">
+
+        {/* ── main scrollable column ── */}
+        <div className="flex-1 flex flex-col overflow-y-auto bg-white dark:bg-zinc-950">
+
+          {/* TOOLBAR */}
+          <NoteEditorToolbar mode="fullPage" onClose={onClose} />
+
+          {/* BODY — max-w-4xl, px-12, py-16 */}
+          <div className="max-w-4xl mx-auto w-full px-12 py-16 space-y-12">
+
+            {/* Breadcrumb + Title block */}
+            <div className="space-y-4">
+              {/* Breadcrumb: Notebook › Date */}
+              <div className="flex items-center gap-3 text-[12px] text-foreground/50 uppercase tracking-[.25em] font-bold">
+                {notebookName && <span>{notebookName}</span>}
+                {notebookName && <span>›</span>}
+                <span suppressHydrationWarning>
+                  {format(new Date(note.contentUpdatedAt), 'MMM d, yyyy')}
+                </span>
+              </div>
+
+              {/* Title */}
+              <NoteTitleBlock />
+            </div>
+
+            {/* Hero image — show first note image if present */}
+            {state.allImages.length > 0 && (
+              <div className="aspect-[16/9] w-full bg-slate-100 dark:bg-zinc-900 rounded-xl overflow-hidden shadow-xl">
+                <img
+                  src={state.allImages[0]}
+                  alt={state.title}
+                  className="w-full h-full object-cover grayscale contrast-110 hover:grayscale-0 transition-all duration-500"
+                />
+              </div>
+            )}
+
+            {/* Content area — max-w-3xl for wider reading column */}
+            <div className="max-w-3xl mx-auto w-full pb-32">
+              <NoteContentArea />
+            </div>
+          </div>
+        </div>
+
+        {/* ── Side panel: AI Chat ── */}
+        {state.aiOpen && (
+          <div className="h-full self-stretch bg-background flex flex-col z-50 shrink-0">
+            <ContextualAIChat
+              onClose={() => actions.setAiOpen(false)}
+              noteTitle={state.title}
+              noteContent={state.content}
+              noteImages={state.allImages}
+              noteId={note.id}
+              onApplyToNote={(nc: string) => {
+                actions.setPreviousContentForCopilot(state.content)
+                actions.setContent(nc)
+                if (state.noteType === 'markdown') actions.setShowMarkdownPreview(true)
+              }}
+              onUndoLastAction={state.previousContentForCopilot !== null ? () => { actions.setContent(state.previousContentForCopilot!); actions.setPreviousContentForCopilot(null) } : undefined}
+              lastActionApplied={state.previousContentForCopilot !== null}
+              notebooks={notebooks}
+              diagramInsertFormat={state.noteType === 'richtext' ? 'html' : 'markdown'}
+              onGenerateTitle={async () => {
+                const plain = state.content.replace(/<[^>]+>/g, ' ').trim()
+                const wordCount = plain.split(/\s+/).filter(Boolean).length
+                if (wordCount < 10) {
+                  toast.error('Ajoutez au moins 10 mots avant de générer un titre.')
+                  return
+                }
+                actions.setIsProcessingAI(true)
+                try {
+                  const res = await fetch('/api/ai/title-suggestions', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ content: plain }),
+                  })
+                  if (res.ok) {
+                    const data = await res.json()
+                    const s = data.suggestions?.[0]?.title ?? ''
+                    if (s) {
+                      actions.setTitle(s)
+                      toast.success('Titre généré !')
+                    } else {
+                      toast.error('Impossible de générer un titre.')
+                    }
+                  } else {
+                    toast.error('Erreur lors de la génération du titre.')
+                  }
+                } catch { toast.error('Erreur réseau.') } finally { actions.setIsProcessingAI(false) }
+              }}
+            />
+          </div>
+        )}
+
+        {/* ── Side panel: Document Info ── */}
+        {state.infoOpen && (
+          <div className="w-[400px] h-full self-stretch border-l border-black/10 dark:border-white/10 bg-background flex flex-col z-50 shrink-0">
+            <NoteDocumentInfoPanel
+              note={note}
+              content={state.content}
+              onClose={() => actions.setInfoOpen(false)}
+              onNoteRestored={(r: Note) => { actions.setContent(r.content || ''); actions.setTitle(r.title || ''); actions.setIsDirty(false) }}
+            />
+          </div>
+        )}
+      </div>
+
+      <input ref={fileInputRef} type="file" accept="image/*" multiple className="hidden" onChange={actions.handleImageUpload} />
+      <ReminderDialog
+        open={state.showReminderDialog}
+        onOpenChange={actions.setShowReminderDialog}
+        currentReminder={state.currentReminder}
+        onSave={actions.handleReminderSave}
+        onRemove={actions.handleRemoveReminder}
+      />
+    </>
+  )
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-editor-toolbar.tsx b/memento-note/components/note-editor/note-editor-toolbar.tsx
new file mode 100644
index 0000000..6c4a3c6
--- /dev/null
+++ b/memento-note/components/note-editor/note-editor-toolbar.tsx
@@ -0,0 +1,307 @@
+'use client'
+
+import { useNoteEditorContext } from './note-editor-context'
+import { LabelManager } from '@/components/label-manager'
+import { LabelBadge } from '@/components/label-badge'
+import { GhostTags } from '@/components/ghost-tags'
+import { EditorImages } from '@/components/editor-images'
+import { TitleSuggestions } from '@/components/title-suggestions'
+import { NoteTypeSelector } from '@/components/note-type-selector'
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from '@/components/ui/dropdown-menu'
+import { Button } from '@/components/ui/button'
+import { Badge } from '@/components/ui/badge'
+import {
+  X, Plus, Palette, Image as ImageIcon, Bell, Eye, Link as LinkIcon, Sparkles,
+  Maximize2, Copy, ArrowLeft, ChevronRight, Info, Check, Loader2, Save, MoreHorizontal,
+  Trash2, LogOut
+} from 'lucide-react'
+import { deleteNote, leaveSharedNote } from '@/app/actions/notes'
+import { useNoteRefresh } from '@/context/NoteRefreshContext'
+import { useLanguage } from '@/lib/i18n'
+import { NOTE_COLORS, NoteColor, Note } from '@/lib/types'
+import { cn } from '@/lib/utils'
+import { toast } from 'sonner'
+import { format } from 'date-fns'
+
+interface NoteEditorToolbarProps {
+  mode: 'fullPage' | 'dialog'
+  onClose: () => void
+}
+
+export function NoteEditorToolbar({ mode, onClose }: NoteEditorToolbarProps) {
+  const { state, actions, note, readOnly, fullPage, notebooks, fileInputRef } = useNoteEditorContext()
+  const { t } = useLanguage()
+  const { triggerRefresh } = useNoteRefresh()
+
+  const notebookName = notebooks.find(nb => nb.id === note.notebookId)?.name || null
+
+  if (mode === 'fullPage') {
+    return (
+      <div className="px-12 py-8 flex items-center justify-between sticky top-0 bg-white/95 dark:bg-zinc-950/95 backdrop-blur-sm z-40 border-b border-border dark:border-white/10">
+        {/* Left: back */}
+        <button
+          onClick={onClose}
+          className="flex items-center gap-2 text-foreground hover:opacity-60 transition-opacity"
+        >
+          <ArrowLeft size={18} />
+          <span className="text-sm font-medium">Back to collection</span>
+        </button>
+
+        {/* Right: status + type + AI + Info */}
+        <div className="flex items-center gap-4">
+          {/* Save status */}
+          <span className="hidden sm:flex items-center gap-1.5 text-[11px] text-foreground/40 select-none">
+            {state.isSaving
+              ? <><Loader2 className="h-3 w-3 animate-spin" /><span>Saving…</span></>
+              : state.isDirty
+              ? <><span className="h-1.5 w-1.5 rounded-full bg-amber-400 inline-block" /><span>Modified</span></>
+              : <><Check className="h-3 w-3 text-emerald-500" /><span>Saved</span></>}
+          </span>
+
+          {/* Note type */}
+          <NoteTypeSelector
+            value={state.noteType}
+            onChange={(newType) => { actions.setNoteType(newType); actions.setIsDirty(true) }}
+            compact
+          />
+
+          {/* Preview toggle — only for text/markdown, in toolbar where it's visible */}
+          {(state.noteType === 'text' || state.noteType === 'markdown') && !readOnly && (
+            <button
+              aria-label={state.showMarkdownPreview ? 'Revenir à l\'édition' : 'Prévisualiser le rendu'}
+              onClick={() => actions.setShowMarkdownPreview(!state.showMarkdownPreview)}
+              className={cn(
+                'flex items-center gap-2 px-3 py-1.5 rounded-full border transition-all duration-300 text-xs font-medium',
+                state.showMarkdownPreview
+                  ? 'bg-foreground text-background border-foreground'
+                  : 'border-black/20 dark:border-white/20 text-foreground hover:bg-black/5 dark:hover:bg-white/5'
+              )}
+            >
+              <Eye size={16} />
+              <span>{state.showMarkdownPreview ? 'Éditer' : 'Aperçu'}</span>
+            </button>
+          )}
+
+          {/* AI — rounded-full, exact prototype style */}
+          <button
+            aria-label="Ouvrir l'assistant IA"
+            onClick={() => { actions.setAiOpen(!state.aiOpen); actions.setInfoOpen(false) }}
+            className={cn(
+              'flex items-center gap-2 px-3 py-1.5 rounded-full border transition-all duration-300 text-xs font-medium',
+              state.aiOpen
+                ? 'bg-foreground text-background border-foreground'
+                : 'border-black/20 dark:border-white/20 text-foreground hover:bg-black/5 dark:hover:bg-white/5'
+            )}
+          >
+            <Sparkles size={16} />
+            <span>AI Assistant</span>
+          </button>
+
+          {/* Info — rounded-full */}
+          <button
+            aria-label="Informations du document"
+            onClick={() => { actions.setInfoOpen(!state.infoOpen); actions.setAiOpen(false) }}
+            className={cn(
+              'flex items-center gap-2 px-3 py-1.5 rounded-full border transition-all duration-300 text-xs font-medium',
+              state.infoOpen
+                ? 'bg-foreground text-background border-foreground'
+                : 'border-black/20 dark:border-white/20 text-foreground hover:bg-black/5 dark:hover:bg-white/5'
+            )}
+          >
+            <Info size={16} />
+            <span>Document Info</span>
+          </button>
+
+          {/* Save button */}
+          {!readOnly && (
+            <button
+              aria-label={state.isDirty ? 'Enregistrer la note' : 'Aucune modification à enregistrer'}
+              onClick={actions.handleSaveInPlace}
+              disabled={state.isSaving || !state.isDirty}
+              className={cn(
+                'flex items-center gap-2 px-3 py-1.5 rounded-full border transition-all duration-300 text-xs font-medium',
+                state.isDirty
+                  ? 'bg-foreground text-background border-foreground hover:opacity-80'
+                  : 'border-black/20 dark:border-white/20 text-foreground/40 cursor-not-allowed'
+              )}
+            >
+              {state.isSaving ? <Loader2 size={14} className="animate-spin" /> : <Save size={14} />}
+              <span>{state.isSaving ? 'Saving…' : 'Save'}</span>
+            </button>
+          )}
+
+          {/* Three-dot options menu */}
+          {!readOnly && (
+            <DropdownMenu>
+              <DropdownMenuTrigger asChild>
+                <button aria-label="Menu des options" className="p-1.5 rounded-full border border-black/20 dark:border-white/20 text-foreground hover:bg-black/5 dark:hover:bg-white/5 transition-all">
+                  <MoreHorizontal size={16} />
+                </button>
+              </DropdownMenuTrigger>
+              <DropdownMenuContent align="end" className="w-48">
+                <DropdownMenuItem
+                  onClick={async () => {
+                    try {
+                      await deleteNote(note.id)
+                      triggerRefresh()
+                      toast.success('Note supprimée.')
+                      onClose()
+                    } catch { toast.error('Impossible de supprimer.') }
+                  }}
+                  className="text-red-600 dark:text-red-400 focus:text-red-600"
+                >
+                  <Trash2 className="h-4 w-4 mr-2" />
+                  Supprimer la note
+                </DropdownMenuItem>
+              </DropdownMenuContent>
+            </DropdownMenu>
+          )}
+        </div>
+      </div>
+    )
+  }
+
+  // Dialog toolbar
+  return (
+    <div className="flex items-center justify-between pt-3 border-t border-border/30">
+      <div className="flex items-center gap-0.5">
+        {!readOnly && (
+          <>
+            {/* Reminder */}
+            <Button variant="ghost" size="icon" className={cn('h-8 w-8 rounded-md', state.currentReminder && 'text-primary')}
+              onClick={() => actions.setShowReminderDialog(true)} title={t('notes.setReminder')}>
+              <Bell className="h-4 w-4" />
+            </Button>
+            {/* Add Image */}
+            <Button variant="ghost" size="icon" className="h-8 w-8 rounded-md"
+              onClick={() => fileInputRef.current?.click()} title={t('notes.addImage')}>
+              <ImageIcon className="h-4 w-4" />
+            </Button>
+
+            {/* Add Link */}
+            <Button variant="ghost" size="icon" className="h-8 w-8 rounded-md"
+              onClick={() => actions.setShowLinkDialog(true)} title={t('notes.addLink')}>
+              <LinkIcon className="h-4 w-4" />
+            </Button>
+
+            <NoteTypeSelector value={state.noteType} onChange={(newType) => { actions.setNoteType(newType); if (newType !== 'markdown') actions.setShowMarkdownPreview(false) }} />
+
+            {state.noteType === 'markdown' && (
+              <Button variant="ghost" size="icon" className="h-8 w-8 rounded-md"
+                onClick={() => actions.setShowMarkdownPreview(!state.showMarkdownPreview)}
+                title={state.showMarkdownPreview ? t('general.edit') : t('notes.preview')}>
+                <Eye className="h-4 w-4" />
+              </Button>
+            )}
+
+            {/* AI Copilot */}
+            {state.noteType !== 'checklist' && (
+              <Button variant="ghost" size="sm"
+                className={cn('h-8 gap-1.5 px-2 text-xs font-medium transition-all duration-200 rounded-md', state.aiOpen && 'bg-primary/10 text-primary')}
+                onClick={() => actions.setAiOpen(!state.aiOpen)} title="IA Note">
+                <Sparkles className="h-3.5 w-3.5" />
+                <span className="hidden sm:inline">IA Note</span>
+              </Button>
+            )}
+
+            {/* Size Selector */}
+            <DropdownMenu>
+              <DropdownMenuTrigger asChild>
+                <Button variant="ghost" size="icon" className="h-8 w-8 rounded-md" title={t('notes.changeSize')}>
+                  <Maximize2 className="h-4 w-4" />
+                </Button>
+              </DropdownMenuTrigger>
+              <DropdownMenuContent>
+                <div className="flex flex-col gap-1 p-1">
+                  {(['small', 'medium', 'large'] as const).map((s) => (
+                    <Button key={s} variant="ghost" size="sm"
+                      onClick={() => actions.setSize(s)}
+                      className={cn('justify-start capitalize', state.size === s && 'bg-accent')}>
+                      {s}
+                    </Button>
+                  ))}
+                </div>
+              </DropdownMenuContent>
+            </DropdownMenu>
+
+            {/* Color Picker */}
+            <DropdownMenu>
+              <DropdownMenuTrigger asChild>
+                <Button variant="ghost" size="icon" className="h-8 w-8 rounded-md" title={t('notes.changeColor')}>
+                  <Palette className="h-4 w-4" />
+                </Button>
+              </DropdownMenuTrigger>
+              <DropdownMenuContent>
+                <div className="grid grid-cols-5 gap-2 p-2">
+                  {Object.entries(NOTE_COLORS).map(([colorName, classes]) => (
+                    <button key={colorName}
+                      className={cn('h-7 w-7 rounded-full border-2 transition-transform hover:scale-110', classes.bg,
+                        state.color === colorName ? 'border-gray-900 dark:border-gray-100' : 'border-gray-300 dark:border-gray-700')}
+                      onClick={() => actions.setColor(colorName as NoteColor)} title={colorName} />
+                  ))}
+                </div>
+              </DropdownMenuContent>
+            </DropdownMenu>
+
+            {/* Label Manager */}
+            <LabelManager existingLabels={state.labels} notebookId={note.notebookId} onUpdate={actions.setLabels} />
+          </>
+        )}
+        {readOnly && (
+          <div className="flex items-center gap-2 text-sm text-muted-foreground">
+            <span className="text-xs">{t('notes.sharedReadOnly')}</span>
+          </div>
+        )}
+      </div>
+
+      <div className="flex gap-2">
+        {readOnly ? (
+          <>
+            <Button
+              variant="default"
+              onClick={actions.handleMakeCopy}
+              className="flex items-center gap-2"
+            >
+              <Copy className="h-4 w-4" />
+              {t('notes.makeCopy')}
+            </Button>
+            <Button
+              variant="ghost"
+              className="flex items-center gap-2 text-red-600 hover:text-red-700 hover:bg-red-50 dark:hover:bg-red-950/30"
+              onClick={async () => {
+                try {
+                  await leaveSharedNote(note.id)
+                  toast.success(t('notes.leftShare') || 'Share removed')
+                  triggerRefresh()
+                  onClose()
+                } catch {
+                  toast.error(t('general.error'))
+                }
+              }}
+            >
+              <LogOut className="h-4 w-4" />
+              {t('notes.leaveShare')}
+            </Button>
+            <Button variant="ghost" onClick={onClose}>
+              {t('general.close')}
+            </Button>
+          </>
+        ) : (
+          <>
+            <Button variant="ghost" onClick={onClose}>
+              {t('general.cancel')}
+            </Button>
+            <Button onClick={actions.handleSave} disabled={state.isSaving}>
+              {state.isSaving ? t('notes.saving') : t('general.save')}
+            </Button>
+          </>
+        )}
+      </div>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-metadata-section.tsx b/memento-note/components/note-editor/note-metadata-section.tsx
new file mode 100644
index 0000000..986b802
--- /dev/null
+++ b/memento-note/components/note-editor/note-metadata-section.tsx
@@ -0,0 +1,50 @@
+'use client'
+
+import { useNoteEditorContext } from './note-editor-context'
+import { LabelBadge } from '../label-badge'
+import { GhostTags } from '../ghost-tags'
+import { cn } from '@/lib/utils'
+
+export function NoteMetadataSection() {
+  const { state, actions, readOnly } = useNoteEditorContext()
+
+  return (
+    <div className="space-y-4">
+      {/* Labels */}
+      {state.labels.length > 0 && (
+        <div className="flex flex-wrap gap-2">
+          {state.labels.map((label) => (
+            <LabelBadge
+              key={label}
+              label={label}
+              onRemove={() => actions.handleRemoveLabel(label)}
+            />
+          ))}
+        </div>
+      )}
+
+      {/* Ghost Tags - only show in dialog mode */}
+      {!readOnly && state.noteType !== 'richtext' && (
+        <GhostTags
+          suggestions={state.filteredSuggestions}
+          addedTags={state.labels}
+          isAnalyzing={state.isAnalyzingSuggestions}
+          onSelectTag={actions.handleSelectGhostTag}
+          onDismissTag={actions.handleDismissGhostTag}
+        />
+      )}
+
+      {/* Color indicator */}
+      <div className="flex items-center gap-2">
+        <span className="text-xs text-foreground/50">Color:</span>
+        <div className={cn('w-4 h-4 rounded-full', state.colorClasses?.bg || 'bg-gray-100')} />
+      </div>
+
+      {/* Size indicator */}
+      <div className="flex items-center gap-2">
+        <span className="text-xs text-foreground/50">Size:</span>
+        <span className="text-xs capitalize">{state.size}</span>
+      </div>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/note-title-block.tsx b/memento-note/components/note-editor/note-title-block.tsx
new file mode 100644
index 0000000..cf949e3
--- /dev/null
+++ b/memento-note/components/note-editor/note-title-block.tsx
@@ -0,0 +1,118 @@
+'use client'
+
+import { useNoteEditorContext } from './note-editor-context'
+import { TitleSuggestions } from '@/components/title-suggestions'
+import { Loader2, Sparkles } from 'lucide-react'
+import { useLanguage } from '@/lib/i18n'
+import { cn } from '@/lib/utils'
+import { toast } from 'sonner'
+
+export function NoteTitleBlock() {
+  const { state, actions, readOnly, fullPage } = useNoteEditorContext()
+  const { t } = useLanguage()
+
+  if (fullPage) {
+    return (
+      <div className="space-y-4">
+        {/* Title — auto-resizing textarea to prevent overflow */}
+        <div className="group relative">
+          <textarea
+            dir="auto"
+            rows={1}
+            placeholder={t('notes.titlePlaceholder') || 'Untitled…'}
+            value={state.title}
+            onChange={(e) => { actions.setTitle(e.target.value) }}
+            onInput={(e) => {
+              const el = e.currentTarget
+              el.style.height = 'auto'
+              el.style.height = el.scrollHeight + 'px'
+            }}
+            disabled={readOnly}
+            className={cn(
+              'w-full text-4xl md:text-5xl font-memento-serif font-bold border-0 outline-none px-0 bg-transparent text-foreground leading-tight',
+              'placeholder:text-foreground/20 resize-none overflow-hidden',
+              !readOnly && 'pr-12'
+            )}
+          />
+          {/* AI title generation — always visible on hover */}
+          {!readOnly && (
+            <button
+              type="button"
+              onClick={async () => {
+                const plain = state.content.replace(/<[^>]+>/g, ' ').trim()
+                const wordCount = plain.split(/\s+/).filter(Boolean).length
+                if (wordCount < 10) {
+                  toast.error('Ajoutez au moins 10 mots avant de générer un titre.')
+                  return
+                }
+                actions.setIsProcessingAI(true)
+                try {
+                  const res = await fetch('/api/ai/title-suggestions', {
+                    method: 'POST',
+                    headers: { 'Content-Type': 'application/json' },
+                    body: JSON.stringify({ content: plain }),
+                  })
+                  if (res.ok) {
+                    const data = await res.json()
+                    const s = data.suggestions?.[0]?.title ?? ''
+                    if (s) {
+                      actions.setTitle(s)
+                      toast.success('Titre généré !')
+                    } else {
+                      toast.error('Impossible de générer un titre.')
+                    }
+                  } else {
+                    toast.error('Erreur lors de la génération du titre.')
+                  }
+                } catch { toast.error('Erreur réseau.') } finally { actions.setIsProcessingAI(false) }
+              }}
+              disabled={state.isProcessingAI}
+              className="absolute right-0 top-2 opacity-0 group-hover:opacity-60 hover:!opacity-100 transition-opacity rounded-lg p-2 text-foreground/50 hover:bg-black/5"
+              title="Générer un titre automatique avec l'IA"
+            >
+              {state.isProcessingAI ? <Loader2 className="h-5 w-5 animate-spin" /> : <Sparkles className="h-5 w-5" />}
+            </button>
+          )}
+        </div>
+
+        {/* Auto title suggestions */}
+        {!state.title && !state.dismissedTitleSuggestions && state.titleSuggestions.length > 0 && (
+          <TitleSuggestions
+            suggestions={state.titleSuggestions}
+            onSelect={(s: string) => { actions.setTitle(s); actions.setDismissedTitleSuggestions(true) }}
+            onDismiss={() => actions.setDismissedTitleSuggestions(true)}
+          />
+        )}
+      </div>
+    )
+  }
+
+  // Dialog mode title block
+  return (
+    <div className="relative">
+      <input
+        dir="auto"
+        placeholder={t('notes.titlePlaceholder')}
+        value={state.title}
+        onChange={(e) => actions.setTitle(e.target.value)}
+        disabled={readOnly}
+        className={cn(
+          "w-full text-lg font-semibold border-0 focus-visible:ring-0 px-0 bg-transparent pr-10",
+          readOnly && "cursor-default"
+        )}
+      />
+      <button
+        onClick={actions.handleGenerateTitles}
+        disabled={state.isGeneratingTitles || readOnly}
+        className="absolute right-0 top-1/2 -translate-y-1/2 p-1 hover:bg-purple-100 dark:hover:bg-purple-900 rounded transition-colors"
+        title={state.isGeneratingTitles ? t('ai.titleGenerating') : t('ai.titleGenerateWithAI')}
+      >
+        {state.isGeneratingTitles ? (
+          <div className="w-4 h-4 border-2 border-purple-500 border-t-transparent rounded-full animate-spin" />
+        ) : (
+          <Sparkles className="w-4 h-4 text-purple-600 hover:text-purple-700 dark:text-purple-400" />
+        )}
+      </button>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/memento-note/components/note-editor/types.ts b/memento-note/components/note-editor/types.ts
new file mode 100644
index 0000000..996a62f
--- /dev/null
+++ b/memento-note/components/note-editor/types.ts
@@ -0,0 +1,174 @@
+import { Note, CheckItem, NOTE_COLORS, NoteColor, NoteType, LinkMetadata, NoteSize } from '@/lib/types'
+import type { TitleSuggestion } from '@/hooks/use-title-suggestions'
+import type { TagSuggestion } from '@/lib/ai/types'
+
+// State interface - all local state from NoteEditor
+export interface NoteEditorState {
+  // Core content state
+  title: string
+  content: string
+  checkItems: CheckItem[]
+  labels: string[]
+  images: string[]
+  links: LinkMetadata[]
+  newLabel: string
+  color: NoteColor
+  size: NoteSize
+  noteType: NoteType
+
+  // UI state
+  showMarkdownPreview: boolean
+  removedImageUrls: string[]
+  isSaving: boolean
+  isDirty: boolean
+
+  // AI state
+  isProcessingAI: boolean
+  aiOpen: boolean
+  infoOpen: boolean
+  isGeneratingTitles: boolean
+  titleSuggestions: TitleSuggestion[]
+  dismissedTitleSuggestions: boolean
+  isReformulating: boolean
+  reformulationModal: {
+    originalText: string
+    reformulatedText: string
+    option: string
+  } | null
+  previousContentForCopilot: string | null
+
+  // Reminder state
+  showReminderDialog: boolean
+  currentReminder: Date | null
+
+  // Link dialog state
+  showLinkDialog: boolean
+  linkUrl: string
+
+  // Memory Echo Connections
+  comparisonNotes: Array<Partial<Note>>
+  fusionNotes: Array<Partial<Note>>
+
+  // Ghost tags
+  dismissedTags: string[]
+
+  // Tag suggestions (from auto-tagging)
+  filteredSuggestions: TagSuggestion[]
+  isAnalyzingSuggestions: boolean
+
+  // Context-derived values
+  isMarkdown: boolean
+  allImages: string[]
+  colorClasses: typeof NOTE_COLORS[keyof typeof NOTE_COLORS]
+}
+
+// Actions interface - all handlers from NoteEditor
+export interface NoteEditorActions {
+  // Title actions
+  setTitle: (title: string) => void
+  setDismissedTitleSuggestions: (dismissed: boolean) => void
+
+  // Content actions
+  setContent: (content: string) => void
+
+  // CheckItems actions
+  setCheckItems: (items: CheckItem[]) => void
+  handleCheckItem: (id: string) => void
+  handleUpdateCheckItem: (id: string, text: string) => void
+  handleAddCheckItem: () => void
+  handleRemoveCheckItem: (id: string) => void
+
+  // Labels actions
+  setLabels: (labels: string[]) => void
+  handleSelectGhostTag: (tag: string) => void
+  handleDismissGhostTag: (tag: string) => void
+  handleRemoveLabel: (label: string) => void
+
+  // Images actions
+  setImages: (images: string[]) => void
+  handleImageUpload: (e: React.ChangeEvent<HTMLInputElement>) => void
+  handleRemoveImage: (index: number) => void
+  uploadImageFile: (file: File) => Promise<string>
+
+  // Links actions
+  setLinks: (links: LinkMetadata[]) => void
+  handleAddLink: () => Promise<void>
+  handleRemoveLink: (index: number) => void
+
+  // Note properties
+  setNoteType: (type: NoteType) => void
+  setShowMarkdownPreview: (show: boolean) => void
+  setColor: (color: NoteColor) => void
+  setSize: (size: NoteSize) => void
+
+  // Reminder actions
+  setShowReminderDialog: (show: boolean) => void
+  setCurrentReminder: (date: Date | null) => void
+  handleReminderSave: (date: Date) => Promise<void>
+  handleRemoveReminder: () => Promise<void>
+
+  // Link dialog
+  setShowLinkDialog: (show: boolean) => void
+  setLinkUrl: (url: string) => void
+
+  // Title suggestions
+  handleGenerateTitles: () => Promise<void>
+  handleSelectTitle: (title: string) => void
+
+  // Reformulation
+  handleReformulate: (option: 'clarify' | 'shorten' | 'improve') => Promise<void>
+  handleApplyRefactor: () => void
+
+  // AI Direct handlers
+  handleClarifyDirect: () => Promise<void>
+  handleShortenDirect: () => Promise<void>
+  handleImproveDirect: () => Promise<void>
+  handleTransformMarkdown: () => Promise<void>
+
+  // Save actions
+  handleSave: () => Promise<void>
+  handleSaveInPlace: () => Promise<void>
+  handleMakeCopy: () => Promise<void>
+
+  // Memory Echo
+  setComparisonNotes: (notes: Array<Partial<Note>>) => void
+  setFusionNotes: (notes: Array<Partial<Note>>) => void
+
+  // Modal states
+  setReformulationModal: (modal: NoteEditorState['reformulationModal']) => void
+
+  // State setters
+  setIsDirty: (dirty: boolean) => void
+  setAiOpen: (open: boolean) => void
+  setInfoOpen: (open: boolean) => void
+  setIsProcessingAI: (processing: boolean) => void
+  setIsGeneratingTitles: (generating: boolean) => void
+  setIsAnalyzingSuggestions: (analyzing: boolean) => void
+  setPreviousContentForCopilot: (content: string | null) => void
+}
+
+// Context value - combines state + actions + note reference
+export interface NoteEditorContextValue {
+  // The current note (external source of truth)
+  note: Note
+
+  // Read-only flag
+  readOnly: boolean
+
+  // FullPage flag
+  fullPage: boolean
+
+  // All state
+  state: NoteEditorState
+
+  // All actions
+  actions: NoteEditorActions
+
+  // Computed values from contexts
+  notebooks: Array<{ id: string; name: string }>
+  globalLabels: Array<{ name: string }>
+
+  // Refs
+  fileInputRef: React.RefObject<HTMLInputElement | null>
+  textareaRef: React.RefObject<HTMLTextAreaElement | null>
+}
\ No newline at end of file
diff --git a/memento-note/components/note-inline-editor.tsx b/memento-note/components/note-inline-editor.tsx
index e7aded3..122d964 100644
--- a/memento-note/components/note-inline-editor.tsx
+++ b/memento-note/components/note-inline-editor.tsx
@@ -52,9 +52,8 @@ import { useAutoTagging } from '@/hooks/use-auto-tagging'
 import { GhostTags } from '@/components/ghost-tags'
 import { useTitleSuggestions } from '@/hooks/use-title-suggestions'
 import { TitleSuggestions } from '@/components/title-suggestions'
-import { useLabels } from '@/context/LabelContext'
-import { useNoteRefresh } from '@/context/NoteRefreshContext'
 import { useNotebooks } from '@/context/notebooks-context'
+import { useNoteRefresh } from '@/context/NoteRefreshContext'
 import { ContextualAIChat } from '@/components/contextual-ai-chat'
 import { formatDistanceToNow } from 'date-fns'
 import { fr } from 'date-fns/locale/fr'
@@ -120,7 +119,7 @@ export function NoteInlineEditor({
       })
     }
   }, [session?.user?.id])
-  const { labels: globalLabels, addLabel } = useLabels()
+  const { labels: globalLabels, addLabel } = useNotebooks()
   const [, startTransition] = useTransition()
   const { triggerRefresh } = useNoteRefresh()
 
diff --git a/memento-note/components/note-input.tsx b/memento-note/components/note-input.tsx
index 060a875..c36074d 100644
--- a/memento-note/components/note-input.tsx
+++ b/memento-note/components/note-input.tsx
@@ -51,7 +51,6 @@ import { GhostTags } from './ghost-tags'
 import { TitleSuggestions } from './title-suggestions'
 import { CollaboratorDialog } from './collaborator-dialog'
 import { AIAssistantActionBar } from './ai-assistant-action-bar'
-import { useLabels } from '@/context/LabelContext'
 import { useSession } from 'next-auth/react'
 import { useSearchParams } from 'next/navigation'
 import { useLanguage } from '@/lib/i18n'
@@ -106,7 +105,7 @@ export function NoteInput({
   forceExpanded = false,
   fullWidth = false,
 }: NoteInputProps) {
-  const { labels: globalLabels, addLabel } = useLabels()
+  const { labels: globalLabels, addLabel } = useNotebooks()
   const { data: session } = useSession()
   const [aiAssistantEnabled, setAiAssistantEnabled] = useState(true)
   const [autoLabelingEnabled, setAutoLabelingEnabled] = useState(true)
diff --git a/memento-note/components/notebooks-list.tsx b/memento-note/components/notebooks-list.tsx
index a36aefb..403b806 100644
--- a/memento-note/components/notebooks-list.tsx
+++ b/memento-note/components/notebooks-list.tsx
@@ -7,7 +7,7 @@ import { cn } from '@/lib/utils'
 import { StickyNote, Plus, Tag, Folder, ChevronDown, ChevronRight, GripVertical } from 'lucide-react'
 import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip'
 import { useNotebooks } from '@/context/notebooks-context'
-import { useNotebookDrag } from '@/context/notebook-drag-context'
+import { useEditorUI } from '@/context/editor-ui-context'
 import { Button } from '@/components/ui/button'
 import { CreateNotebookDialog } from './create-notebook-dialog'
 import { NotebookActions } from './notebook-actions'
@@ -15,7 +15,6 @@ import { DeleteNotebookDialog } from './delete-notebook-dialog'
 import { EditNotebookDialog } from './edit-notebook-dialog'
 import { NotebookSummaryDialog } from './notebook-summary-dialog'
 import { useLanguage } from '@/lib/i18n'
-import { useLabels } from '@/context/LabelContext'
 import { LabelManagementDialog } from '@/components/label-management-dialog'
 import { Notebook } from '@/lib/types'
 import { getNotebookIcon } from '@/lib/notebook-icon'
@@ -35,9 +34,8 @@ export function NotebooksList() {
   const searchParams = useSearchParams()
   const router = useRouter()
   const { t, language } = useLanguage()
-  const { notebooks, currentNotebook, deleteNotebook, moveNoteToNotebookOptimistic, updateNotebookOrderOptimistic, isLoading } = useNotebooks()
-  const { draggedNoteId, dragOverNotebookId, dragOver } = useNotebookDrag()
-  const { labels } = useLabels()
+  const { notebooks, currentNotebook, deleteNotebook, moveNoteToNotebookOptimistic, updateNotebookOrderOptimistic, isLoading, labels } = useNotebooks()
+  const { draggedNoteId, dragOverNotebookId, dragOver } = useEditorUI()
 
   const [isCreateDialogOpen, setIsCreateDialogOpen] = useState(false)
   const [editingNotebook, setEditingNotebook] = useState<Notebook | null>(null)
diff --git a/memento-note/components/providers-wrapper.tsx b/memento-note/components/providers-wrapper.tsx
index d19abee..1c1cfd8 100644
--- a/memento-note/components/providers-wrapper.tsx
+++ b/memento-note/components/providers-wrapper.tsx
@@ -1,11 +1,10 @@
 'use client'
 
 import { LanguageProvider, useLanguage } from '@/lib/i18n/LanguageProvider'
-import { LabelProvider } from '@/context/LabelContext'
 import { NotebooksProvider } from '@/context/notebooks-context'
-import { NotebookDragProvider } from '@/context/notebook-drag-context'
+import { EditorUIProvider } from '@/context/editor-ui-context'
 import { NoteRefreshProvider } from '@/context/NoteRefreshContext'
-import { HomeViewProvider } from '@/context/home-view-context'
+import { QueryProvider } from '@/components/query-provider'
 import type { ReactNode } from 'react'
 import type { Translations } from '@/lib/i18n/load-translations'
 
@@ -26,18 +25,18 @@ interface ProvidersWrapperProps {
 
 export function ProvidersWrapper({ children, initialLanguage = 'en', initialTranslations }: ProvidersWrapperProps) {
   return (
-    <NoteRefreshProvider>
-      <LabelProvider>
+    <QueryProvider>
+      <NoteRefreshProvider>
         <NotebooksProvider>
-          <NotebookDragProvider>
+          <EditorUIProvider>
             <LanguageProvider initialLanguage={initialLanguage as any} initialTranslations={initialTranslations}>
               <DirWrapper>
-                <HomeViewProvider>{children}</HomeViewProvider>
+                {children}
               </DirWrapper>
             </LanguageProvider>
-          </NotebookDragProvider>
+          </EditorUIProvider>
         </NotebooksProvider>
-      </LabelProvider>
-    </NoteRefreshProvider>
+      </NoteRefreshProvider>
+    </QueryProvider>
   )
 }
diff --git a/memento-note/components/query-provider.tsx b/memento-note/components/query-provider.tsx
new file mode 100644
index 0000000..a710357
--- /dev/null
+++ b/memento-note/components/query-provider.tsx
@@ -0,0 +1,26 @@
+'use client'
+
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { useState, type ReactNode } from 'react'
+
+export function QueryProvider({ children }: { children: ReactNode }) {
+  const [queryClient] = useState(
+    () =>
+      new QueryClient({
+        defaultOptions: {
+          queries: {
+            staleTime: 30 * 1000, // 30 seconds
+            gcTime: 5 * 60 * 1000, // 5 minutes (was cacheTime)
+            retry: 1,
+            refetchOnWindowFocus: false,
+          },
+        },
+      })
+  )
+
+  return (
+    <QueryClientProvider client={queryClient}>
+      {children}
+    </QueryClientProvider>
+  )
+}
diff --git a/memento-note/context/LabelContext.tsx b/memento-note/context/LabelContext.tsx
deleted file mode 100644
index 9598e4e..0000000
--- a/memento-note/context/LabelContext.tsx
+++ /dev/null
@@ -1,145 +0,0 @@
-'use client'
-
-import { createContext, useContext, useState, useEffect, useCallback, useMemo, ReactNode } from 'react'
-import { LabelColorName, LABEL_COLORS } from '@/lib/types'
-import { getHashColor } from '@/lib/utils'
-
-export interface Label {
-  id: string
-  name: string
-  color: LabelColorName
-  userId?: string | null
-  createdAt: Date
-  updatedAt: Date
-}
-
-interface LabelContextType {
-  labels: Label[]
-  loading: boolean
-  notebookId?: string | null
-  setNotebookId: (notebookId: string | null) => void
-  addLabel: (name: string, color?: LabelColorName, notebookId?: string | null) => Promise<void>
-  updateLabel: (id: string, updates: Partial<Pick<Label, 'name' | 'color'>>) => Promise<void>
-  deleteLabel: (id: string) => Promise<void>
-  getLabelColor: (name: string) => LabelColorName
-  refreshLabels: () => Promise<void>
-}
-
-const LabelContext = createContext<LabelContextType | undefined>(undefined)
-
-export function LabelProvider({ children }: { children: ReactNode }) {
-  const [labels, setLabels] = useState<Label[]>([])
-  const [loading, setLoading] = useState(true)
-  const [notebookId, setNotebookId] = useState<string | null>(null)
-
-  const fetchLabels = useCallback(async (nbId: string | null) => {
-    try {
-      setLoading(true)
-      const url = new URL('/api/labels', window.location.origin)
-      if (nbId) {
-        url.searchParams.set('notebookId', nbId)
-      }
-
-      const response = await fetch(url.toString(), {
-        cache: 'no-store',
-        credentials: 'include'
-      })
-      const data = await response.json()
-      if (data.success && data.data) {
-        setLabels(data.data)
-      }
-    } catch (error) {
-      console.error('Failed to fetch labels:', error)
-    } finally {
-      setLoading(false)
-    }
-  }, [])
-
-  useEffect(() => {
-    fetchLabels(notebookId)
-  }, [notebookId, fetchLabels])
-
-  const addLabel = useCallback(async (name: string, color?: LabelColorName, labelNotebookId?: string | null) => {
-    try {
-      const labelColor = color || getHashColor(name);
-      const finalNotebookId = labelNotebookId || notebookId
-
-      const response = await fetch('/api/labels', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ name, color: labelColor, notebookId: finalNotebookId }),
-      })
-      const data = await response.json()
-      if (data.success && data.data) {
-        setLabels(prev => [...prev, data.data])
-      }
-    } catch (error) {
-      console.error('Failed to add label:', error)
-      throw error
-    }
-  }, [notebookId])
-
-  const updateLabel = useCallback(async (id: string, updates: Partial<Pick<Label, 'name' | 'color'>>) => {
-    try {
-      const response = await fetch(`/api/labels/${id}`, {
-        method: 'PUT',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify(updates),
-      })
-      const data = await response.json()
-      if (data.success && data.data) {
-        setLabels(prev => prev.map(label =>
-          label.id === id ? { ...label, ...data.data } : label
-        ))
-      }
-    } catch (error) {
-      console.error('Failed to update label:', error)
-      throw error
-    }
-  }, [])
-
-  const deleteLabel = useCallback(async (id: string) => {
-    try {
-      const response = await fetch(`/api/labels/${id}`, {
-        method: 'DELETE',
-      })
-      if (response.ok) {
-        setLabels(prev => prev.filter(label => label.id !== id))
-      }
-    } catch (error) {
-      console.error('Failed to delete label:', error)
-      throw error
-    }
-  }, [])
-
-  const getLabelColor = useCallback((name: string): LabelColorName => {
-    const label = labels.find(l => l.name.toLowerCase() === name.toLowerCase())
-    return label?.color || 'gray'
-  }, [labels])
-
-  const refreshLabels = useCallback(async () => {
-    await fetchLabels(notebookId)
-  }, [fetchLabels, notebookId])
-
-  const value = useMemo<LabelContextType>(() => ({
-    labels,
-    loading,
-    notebookId,
-    setNotebookId,
-    addLabel,
-    updateLabel,
-    deleteLabel,
-    getLabelColor,
-    refreshLabels,
-  }), [labels, loading, notebookId, addLabel, updateLabel, deleteLabel, getLabelColor, refreshLabels])
-
-  return <LabelContext.Provider value={value}>{children}</LabelContext.Provider>
-}
-
-export function useLabels() {
-  const context = useContext(LabelContext)
-  if (context === undefined) {
-    throw new Error('useLabels must be used within a LabelProvider')
-  }
-  return context
-}
diff --git a/memento-note/context/editor-ui-context.tsx b/memento-note/context/editor-ui-context.tsx
new file mode 100644
index 0000000..d41949d
--- /dev/null
+++ b/memento-note/context/editor-ui-context.tsx
@@ -0,0 +1,74 @@
+'use client'
+
+import { createContext, useContext, useState, useCallback, useMemo, type ReactNode } from 'react'
+
+export type HomeUiControls = {
+  isTabsMode: boolean
+  openNoteComposer: () => void
+}
+
+interface EditorUIContextValue {
+  // HomeView controls
+  controls: HomeUiControls | null
+  setControls: (c: HomeUiControls | null) => void
+
+  // NotebookDrag controls
+  draggedNoteId: string | null
+  dragOverNotebookId: string | null
+  startDrag: (noteId: string) => void
+  endDrag: () => void
+  dragOver: (notebookId: string | null) => void
+  isDragging: boolean
+  isDragOver: boolean
+}
+
+const EditorUIContext = createContext<EditorUIContextValue | null>(null)
+
+export function EditorUIProvider({ children }: { children: ReactNode }) {
+  // HomeView state
+  const [controls, setControls] = useState<HomeUiControls | null>(null)
+
+  // NotebookDrag state
+  const [draggedNoteId, setDraggedNoteId] = useState<string | null>(null)
+  const [dragOverNotebookId, setDragOverNotebookId] = useState<string | null>(null)
+
+  const startDrag = useCallback((noteId: string) => {
+    setDraggedNoteId(noteId)
+  }, [])
+
+  const endDrag = useCallback(() => {
+    setDraggedNoteId(null)
+    setDragOverNotebookId(null)
+  }, [])
+
+  const dragOver = useCallback((notebookId: string | null) => {
+    setDragOverNotebookId(notebookId)
+  }, [])
+
+  const isDragging = draggedNoteId !== null
+  const isDragOver = dragOverNotebookId !== null
+
+  const value = useMemo<EditorUIContextValue>(() => ({
+    controls,
+    setControls,
+    draggedNoteId,
+    dragOverNotebookId,
+    startDrag,
+    endDrag,
+    dragOver,
+    isDragging,
+    isDragOver,
+  }), [controls, draggedNoteId, dragOverNotebookId, startDrag, endDrag, dragOver, isDragging, isDragOver])
+
+  return <EditorUIContext.Provider value={value}>{children}</EditorUIContext.Provider>
+}
+
+export function useEditorUI() {
+  const ctx = useContext(EditorUIContext)
+  if (!ctx) throw new Error('useEditorUI must be used within EditorUIProvider')
+  return ctx
+}
+
+export function useEditorUIOptional(): EditorUIContextValue | null {
+  return useContext(EditorUIContext)
+}
\ No newline at end of file
diff --git a/memento-note/context/home-view-context.tsx b/memento-note/context/home-view-context.tsx
deleted file mode 100644
index 5a51b15..0000000
--- a/memento-note/context/home-view-context.tsx
+++ /dev/null
@@ -1,36 +0,0 @@
-'use client'
-
-import { createContext, useContext, useMemo, useState, type ReactNode } from 'react'
-
-export type HomeUiControls = {
-  isTabsMode: boolean
-  openNoteComposer: () => void
-}
-
-type Ctx = {
-  controls: HomeUiControls | null
-  setControls: (c: HomeUiControls | null) => void
-}
-
-const HomeViewContext = createContext<Ctx | null>(null)
-
-export function HomeViewProvider({ children }: { children: ReactNode }) {
-  const [controls, setControls] = useState<HomeUiControls | null>(null)
-  const value = useMemo(() => ({ controls, setControls }), [controls])
-
-  return <HomeViewContext.Provider value={value}>{children}</HomeViewContext.Provider>
-}
-
-/** Enregistré par la page d’accueil ; la sidebar lit `controls` */
-export function useHomeView() {
-  const ctx = useContext(HomeViewContext)
-  if (!ctx) {
-    throw new Error('useHomeView must be used within HomeViewProvider')
-  }
-  return ctx
-}
-
-/** Sidebar / shells : ne pas planter si hors provider */
-export function useHomeViewOptional(): Ctx | null {
-  return useContext(HomeViewContext)
-}
diff --git a/memento-note/context/notebook-drag-context.tsx b/memento-note/context/notebook-drag-context.tsx
deleted file mode 100644
index af639c4..0000000
--- a/memento-note/context/notebook-drag-context.tsx
+++ /dev/null
@@ -1,64 +0,0 @@
-'use client'
-
-import { createContext, useContext, useState, useCallback, useMemo, ReactNode } from 'react'
-
-interface NotebookDragContextValue {
-  draggedNoteId: string | null
-  dragOverNotebookId: string | null
-  startDrag: (noteId: string) => void
-  endDrag: () => void
-  dragOver: (notebookId: string | null) => void
-  isDragging: boolean
-  isDragOver: boolean
-}
-
-const NotebookDragContext = createContext<NotebookDragContextValue | null>(null)
-
-export function useNotebookDrag() {
-  const context = useContext(NotebookDragContext)
-  if (!context) {
-    throw new Error('useNotebookDrag must be used within NotebookDragProvider')
-  }
-  return context
-}
-
-interface NotebookDragProviderProps {
-  children: ReactNode
-}
-
-export function NotebookDragProvider({ children }: NotebookDragProviderProps) {
-  const [draggedNoteId, setDraggedNoteId] = useState<string | null>(null)
-  const [dragOverNotebookId, setDragOverNotebookId] = useState<string | null>(null)
-
-  const startDrag = useCallback((noteId: string) => {
-    setDraggedNoteId(noteId)
-  }, [])
-
-  const endDrag = useCallback(() => {
-    setDraggedNoteId(null)
-    setDragOverNotebookId(null)
-  }, [])
-
-  const dragOver = useCallback((notebookId: string | null) => {
-    setDragOverNotebookId(notebookId)
-  }, [])
-
-  const isDragging = draggedNoteId !== null
-  const isDragOver = dragOverNotebookId !== null
-
-  const value = useMemo(() => ({
-    draggedNoteId,
-    dragOverNotebookId,
-    startDrag,
-    endDrag,
-    dragOver,
-    isDragging,
-    isDragOver,
-  }), [draggedNoteId, dragOverNotebookId, startDrag, endDrag, dragOver, isDragging, isDragOver])
-
-  return (
-    <NotebookDragContext.Provider value={value}>
-      {children}
-    </NotebookDragContext.Provider>
-  )
-}
diff --git a/memento-note/context/notebooks-context.tsx b/memento-note/context/notebooks-context.tsx
index 15a342c..f31e60e 100644
--- a/memento-note/context/notebooks-context.tsx
+++ b/memento-note/context/notebooks-context.tsx
@@ -1,9 +1,13 @@
 'use client'
 
 import { createContext, useContext, useState, useEffect, useMemo, useCallback } from 'react'
+import { useQueryClient } from '@tanstack/react-query'
 import type { Notebook, Label, Note } from '@/lib/types'
+import { LabelColorName, LABEL_COLORS } from '@/lib/types'
+import { getHashColor } from '@/lib/utils'
 import { useNoteRefresh } from './NoteRefreshContext'
 import { toast } from 'sonner'
+import { queryKeys } from '@/lib/query-keys'
 
 // ===== INPUT TYPES =====
 export interface CreateNotebookInput {
@@ -39,6 +43,15 @@ export interface NotebooksContextValue {
   isMovingNote: boolean
   error: string | null
 
+  // Labels from /api/labels (merged from LabelContext)
+  labels: Label[]
+  loading: boolean
+  notebookId: string | null
+  setNotebookId: (notebookId: string | null) => void
+  addLabel: (name: string, color?: LabelColorName, labelNotebookId?: string | null) => Promise<void>
+  refreshLabels: () => Promise<void>
+  getLabelColor: (name: string) => LabelColorName
+
   // Actions: Notebooks
   createNotebookOptimistic: (data: CreateNotebookInput) => Promise<void>
   updateNotebook: (notebookId: string, data: UpdateNotebookInput) => Promise<void>
@@ -79,6 +92,7 @@ interface NotebooksProviderProps {
 
 export function NotebooksProvider({ children, initialNotebooks = [] }: NotebooksProviderProps) {
   // ===== BASE STATE =====
+  const queryClient = useQueryClient()
   const [notebooks, setNotebooks] = useState<Notebook[]>(initialNotebooks)
   const [currentNotebook, setCurrentNotebook] = useState<Notebook | null>(null)
   const [isLoading, setIsLoading] = useState(true)
@@ -86,6 +100,11 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
   const [error, setError] = useState<string | null>(null)
   const { triggerRefresh, triggerNotebooksRefresh, notebooksRefreshKey } = useNoteRefresh()
 
+  // ===== LABEL STATE (merged from LabelContext) =====
+  const [labels, setLabels] = useState<Label[]>([])
+  const [loading, setLoading] = useState(true)
+  const [notebookId, setNotebookId] = useState<string | null>(null)
+
   // ===== DERIVED STATE =====
   const currentLabels = useMemo(() => {
     if (!currentNotebook) return []
@@ -119,6 +138,34 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     if (notebooksRefreshKey > 0) loadNotebooks()
   }, [notebooksRefreshKey, loadNotebooks])
 
+  // ===== LABEL FETCHING (merged from LabelContext) =====
+  const fetchLabels = useCallback(async (nbId: string | null) => {
+    try {
+      setLoading(true)
+      const url = new URL('/api/labels', window.location.origin)
+      if (nbId) {
+        url.searchParams.set('notebookId', nbId)
+      }
+
+      const response = await fetch(url.toString(), {
+        cache: 'no-store',
+        credentials: 'include'
+      })
+      const data = await response.json()
+      if (data.success && data.data) {
+        setLabels(data.data)
+      }
+    } catch (error) {
+      console.error('Failed to fetch labels:', error)
+    } finally {
+      setLoading(false)
+    }
+  }, [])
+
+  useEffect(() => {
+    fetchLabels(notebookId)
+  }, [notebookId, fetchLabels])
+
   // ===== ACTIONS: NOTEBOOKS =====
   const createNotebookOptimistic = useCallback(async (data: CreateNotebookInput) => {
     const response = await fetch('/api/notebooks', {
@@ -131,11 +178,11 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
       throw new Error('Failed to create notebook')
     }
 
-    // Reload notebooks from server to update sidebar state
-    await loadNotebooks()
+    // Invalidate notebooks cache — React Query will re-fetch in bg
+    queryClient.invalidateQueries({ queryKey: queryKeys.notebooks() })
     triggerNotebooksRefresh()
     triggerRefresh()
-  }, [loadNotebooks, triggerNotebooksRefresh, triggerRefresh])
+  }, [queryClient, triggerNotebooksRefresh, triggerRefresh])
 
   const updateNotebook = useCallback(async (notebookId: string, data: UpdateNotebookInput) => {
     const response = await fetch(`/api/notebooks/${notebookId}`, {
@@ -148,10 +195,10 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
       throw new Error('Failed to update notebook')
     }
 
-    await loadNotebooks()
+    queryClient.invalidateQueries({ queryKey: queryKeys.notebooks() })
     triggerNotebooksRefresh()
     triggerRefresh()
-  }, [loadNotebooks, triggerNotebooksRefresh, triggerRefresh])
+  }, [queryClient, triggerNotebooksRefresh, triggerRefresh])
 
   const deleteNotebook = useCallback(async (notebookId: string) => {
     const response = await fetch(`/api/notebooks/${notebookId}`, {
@@ -162,10 +209,10 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
       throw new Error('Failed to delete notebook')
     }
 
-    await loadNotebooks()
+    queryClient.invalidateQueries({ queryKey: queryKeys.notebooks() })
     triggerNotebooksRefresh()
     triggerRefresh()
-  }, [loadNotebooks, triggerNotebooksRefresh, triggerRefresh])
+  }, [queryClient, triggerNotebooksRefresh, triggerRefresh])
 
   const updateNotebookOrderOptimistic = useCallback(async (notebookIds: string[]) => {
     const response = await fetch('/api/notebooks/reorder', {
@@ -178,12 +225,47 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
       throw new Error('Failed to update notebook order')
     }
 
-    await loadNotebooks()
+    queryClient.invalidateQueries({ queryKey: queryKeys.notebooks() })
     triggerNotebooksRefresh()
     triggerRefresh()
-  }, [loadNotebooks, triggerNotebooksRefresh, triggerRefresh])
+  }, [queryClient, triggerNotebooksRefresh, triggerRefresh])
 
-  // ===== ACTIONS: LABELS =====
+  // ===== LABEL ACTIONS (merged from LabelContext) =====
+  const addLabel = useCallback(async (name: string, color?: LabelColorName, labelNotebookId?: string | null) => {
+    try {
+      const labelColor = color || getHashColor(name);
+      const finalNotebookId = labelNotebookId || notebookId
+
+      const response = await fetch('/api/labels', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ name, color: labelColor, notebookId: finalNotebookId }),
+      })
+      const data = await response.json()
+      if (data.success && data.data) {
+        setLabels(prev => [...prev, data.data])
+        // Invalidate labels cache
+        queryClient.invalidateQueries({ queryKey: queryKeys.labels(finalNotebookId) })
+        triggerRefresh()
+      }
+    } catch (error) {
+      console.error('Failed to add label:', error)
+      throw error
+    }
+  }, [notebookId, queryClient, triggerRefresh])
+
+  const getLabelColor = useCallback((name: string): LabelColorName => {
+    const label = labels.find(l => l.name.toLowerCase() === name.toLowerCase())
+    return label?.color || 'gray'
+  }, [labels])
+
+  const refreshLabels = useCallback(async () => {
+    await fetchLabels(notebookId)
+    queryClient.invalidateQueries({ queryKey: queryKeys.labels(notebookId) })
+    triggerRefresh()
+  }, [fetchLabels, notebookId, queryClient, triggerRefresh])
+
+  // ===== ACTIONS: LABELS (keep existing API-based ones for compatibility) =====
   const createLabel = useCallback(async (data: CreateLabelInput) => {
     const response = await fetch('/api/labels', {
       method: 'POST',
@@ -196,8 +278,11 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     }
 
     const result = await response.json()
+    // Invalidate labels cache for this notebook
+    queryClient.invalidateQueries({ queryKey: queryKeys.labels(data.notebookId) })
+    triggerRefresh()
     return result
-  }, [])
+  }, [queryClient, triggerRefresh])
 
   const updateLabel = useCallback(async (labelId: string, data: UpdateLabelInput) => {
     const response = await fetch(`/api/labels/${labelId}`, {
@@ -209,7 +294,17 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     if (!response.ok) {
       throw new Error('Failed to update label')
     }
-  }, [])
+
+    const result = await response.json()
+    if (result.success && result.data) {
+      setLabels(prev => prev.map(label =>
+        label.id === labelId ? { ...label, ...result.data } : label
+      ))
+    }
+    // Invalidate labels cache
+    queryClient.invalidateQueries({ queryKey: queryKeys.labels(notebookId) })
+    triggerRefresh()
+  }, [notebookId, queryClient, triggerRefresh])
 
   const deleteLabel = useCallback(async (labelId: string) => {
     const response = await fetch(`/api/labels/${labelId}`, {
@@ -219,23 +314,30 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     if (!response.ok) {
       throw new Error('Failed to delete label')
     }
-  }, [])
+
+    setLabels(prev => prev.filter(label => label.id !== labelId))
+    // Invalidate labels cache
+    queryClient.invalidateQueries({ queryKey: queryKeys.labels(notebookId) })
+    triggerRefresh()
+  }, [notebookId, queryClient, triggerRefresh])
 
   // ===== ACTIONS: NOTES =====
-  const moveNoteToNotebookOptimistic = useCallback(async (noteId: string, notebookId: string | null) => {
+  const moveNoteToNotebookOptimistic = useCallback(async (noteId: string, targetNotebookId: string | null) => {
     setIsMovingNote(true)
     try {
       const response = await fetch(`/api/notes/${noteId}/move`, {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify({ notebookId }),
+        body: JSON.stringify({ notebookId: targetNotebookId }),
       })
 
       if (!response.ok) {
         throw new Error('Failed to move note')
       }
 
-      await loadNotebooks()
+      // Invalidate notebooks and notes cache
+      queryClient.invalidateQueries({ queryKey: queryKeys.notebooks() })
+      queryClient.invalidateQueries({ queryKey: queryKeys.notes(null) }) // notes list
       triggerNotebooksRefresh()
       triggerRefresh()
     } catch (error) {
@@ -244,7 +346,7 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     } finally {
       setIsMovingNote(false)
     }
-  }, [loadNotebooks, triggerRefresh])
+  }, [queryClient, triggerRefresh, triggerNotebooksRefresh])
 
   // ===== ACTIONS: AI (STUBS) =====
   const suggestNotebookForNote = useCallback(async (_noteContent: string) => {
@@ -265,6 +367,13 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     isLoading,
     isMovingNote,
     error,
+    labels,
+    loading,
+    notebookId,
+    setNotebookId,
+    addLabel,
+    refreshLabels,
+    getLabelColor,
     createNotebookOptimistic,
     updateNotebook,
     deleteNotebook,
@@ -284,6 +393,12 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
     isLoading,
     isMovingNote,
     error,
+    labels,
+    loading,
+    notebookId,
+    addLabel,
+    refreshLabels,
+    getLabelColor,
     createNotebookOptimistic,
     updateNotebook,
     deleteNotebook,
@@ -302,4 +417,4 @@ export function NotebooksProvider({ children, initialNotebooks = [] }: Notebooks
       {children}
     </NotebooksContext.Provider>
   )
-}
+}
\ No newline at end of file
diff --git a/memento-note/lib/query-hooks.ts b/memento-note/lib/query-hooks.ts
new file mode 100644
index 0000000..596cc26
--- /dev/null
+++ b/memento-note/lib/query-hooks.ts
@@ -0,0 +1,77 @@
+'use client'
+
+import { useQueryClient, useMutation, useQuery } from '@tanstack/react-query'
+import { queryKeys } from './query-keys'
+import type { Note, Notebook, Label } from '@/lib/types'
+
+// Re-export query keys
+export { queryKeys }
+
+// ===== useNotes =====
+export function useNotes(notebookId?: string | null) {
+  return useQuery({
+    queryKey: queryKeys.notes(notebookId),
+    queryFn: async (): Promise<Note[]> => {
+      const url = notebookId ? `/api/notes?notebookId=${notebookId}` : '/api/notes'
+      const res = await fetch(url, { cache: 'no-store', credentials: 'include' })
+      const data = await res.json()
+      return data.notes || []
+    },
+  })
+}
+
+// ===== useNote =====
+export function useNote(noteId: string) {
+  return useQuery({
+    queryKey: queryKeys.note(noteId),
+    queryFn: async (): Promise<Note> => {
+      const res = await fetch(`/api/notes/${noteId}`, { cache: 'no-store', credentials: 'include' })
+      const data = await res.json()
+      return data.note || data
+    },
+    enabled: !!noteId,
+  })
+}
+
+// ===== useNotebooks =====
+export function useNotebooksQuery() {
+  return useQuery({
+    queryKey: queryKeys.notebooks(),
+    queryFn: async (): Promise<Notebook[]> => {
+      const res = await fetch('/api/notebooks', { cache: 'no-store', credentials: 'include' })
+      const data = await res.json()
+      return data.notebooks || []
+    },
+  })
+}
+
+// ===== useLabels =====
+export function useLabelsQuery(notebookId?: string | null) {
+  return useQuery({
+    queryKey: queryKeys.labels(notebookId),
+    queryFn: async (): Promise<Label[]> => {
+      const url = new URL('/api/labels', window.location.origin)
+      if (notebookId) url.searchParams.set('notebookId', notebookId)
+      const res = await fetch(url.toString(), { cache: 'no-store', credentials: 'include' })
+      const data = await res.json()
+      return data.data || []
+    },
+  })
+}
+
+// ===== invalidateHelpers =====
+export function invalidateNotes(queryClient: ReturnType<typeof useQueryClient>, notebookId?: string | null) {
+  queryClient.invalidateQueries({ queryKey: queryKeys.notes(notebookId) })
+}
+
+export function invalidateNote(queryClient: ReturnType<typeof useQueryClient>, noteId: string) {
+  queryClient.invalidateQueries({ queryKey: queryKeys.note(noteId) })
+}
+
+export function invalidateNotebooks(queryClient: ReturnType<typeof useQueryClient>) {
+  queryClient.invalidateQueries({ queryKey: queryKeys.notebooks() })
+}
+
+export function invalidateLabels(queryClient: ReturnType<typeof useQueryClient>, notebookId?: string | null) {
+  queryClient.invalidateQueries({ queryKey: queryKeys.labels(notebookId) })
+}
diff --git a/memento-note/lib/query-keys.ts b/memento-note/lib/query-keys.ts
new file mode 100644
index 0000000..8b3fb7c
--- /dev/null
+++ b/memento-note/lib/query-keys.ts
@@ -0,0 +1,23 @@
+// React Query query keys
+
+export const queryKeys = {
+  // Notes
+  notes: (notebookId?: string | null) => ['notes', notebookId] as const,
+  note: (noteId: string) => ['note', noteId] as const,
+  notesWithReminders: () => ['notes', 'reminders'] as const,
+  noteHistory: (noteId: string) => ['note', noteId, 'history'] as const,
+
+  // Notebooks
+  notebooks: () => ['notebooks'] as const,
+  notebook: (notebookId: string) => ['notebooks', notebookId] as const,
+
+  // Labels
+  labels: (notebookId?: string | null) => ['labels', notebookId] as const,
+
+  // AI
+  aiSettings: (userId: string) => ['ai', 'settings', userId] as const,
+  titleSuggestions: (content: string) => ['ai', 'title-suggestions', content] as const,
+  autoTags: (content: string, notebookId?: string | null) => ['ai', 'auto-tags', content, notebookId] as const,
+} as const
+
+export type QueryKeys = typeof queryKeys
diff --git a/memento-note/lib/use-refresh.ts b/memento-note/lib/use-refresh.ts
new file mode 100644
index 0000000..c0330a5
--- /dev/null
+++ b/memento-note/lib/use-refresh.ts
@@ -0,0 +1,46 @@
+'use client'
+
+import { useCallback } from 'react'
+import { useQueryClient } from '@tanstack/react-query'
+import { useNoteRefresh } from '@/context/NoteRefreshContext'
+import { queryKeys, invalidateNotes, invalidateNotebooks, invalidateLabels } from './query-hooks'
+
+/**
+ * Combined refresh hook that:
+ * 1. Calls triggerRefresh() for backward compatibility (NoteRefreshContext)
+ * 2. Invalidates React Query cache for the affected keys
+ *
+ * This allows gradual migration from triggerRefresh to pure React Query.
+ */
+export function useRefresh() {
+  const queryClient = useQueryClient()
+  const { triggerRefresh, triggerNotebooksRefresh } = useNoteRefresh()
+
+  const refreshNotes = useCallback((notebookId?: string | null) => {
+    // Invalidate React Query cache
+    invalidateNotes(queryClient, notebookId)
+    // Trigger old refresh mechanism
+    triggerRefresh()
+  }, [queryClient, triggerRefresh])
+
+  const refreshNotebooks = useCallback(() => {
+    // Invalidate React Query cache
+    invalidateNotebooks(queryClient)
+    // Trigger old refresh mechanism
+    triggerNotebooksRefresh()
+  }, [queryClient, triggerNotebooksRefresh])
+
+  const refreshLabels = useCallback((notebookId?: string | null) => {
+    invalidateLabels(queryClient, notebookId)
+    triggerRefresh() // Labels affect note display too
+  }, [queryClient, triggerRefresh])
+
+  return {
+    refreshNotes,
+    refreshNotebooks,
+    refreshLabels,
+    // For direct query invalidation without triggering refresh
+    queryClient,
+    queryKeys,
+  }
+}
diff --git a/memento-note/package.json b/memento-note/package.json
index f7ac335..568c3eb 100644
--- a/memento-note/package.json
+++ b/memento-note/package.json
@@ -25,6 +25,7 @@
     "test:migration:watch": "vitest watch tests/migration"
   },
   "dependencies": {
+    "@ai-sdk/anthropic": "^3.0.76",
     "@ai-sdk/openai": "^3.0.7",
     "@ai-sdk/react": "^3.0.170",
     "@auth/prisma-adapter": "^2.11.1",
@@ -45,6 +46,7 @@
     "@radix-ui/react-slot": "^1.2.4",
     "@radix-ui/react-switch": "^1.2.6",
     "@radix-ui/react-tooltip": "^1.2.8",
+    "@tanstack/react-query": "^5.100.9",
     "@tiptap/extension-color": "^3.22.5",
     "@tiptap/extension-highlight": "^3.22.5",
     "@tiptap/extension-image": "^3.22.5",
diff --git a/memento-note/prisma/schema.prisma b/memento-note/prisma/schema.prisma
index ae742f3..58384d2 100644
--- a/memento-note/prisma/schema.prisma
+++ b/memento-note/prisma/schema.prisma
@@ -125,6 +125,8 @@ model Note {
   checkItems          String?
   labels              String?
   images              String?
+  /// Illustration SVG (sanitized) for editorial feed thumbnail — optional, peut être généré par IA
+  illustrationSvg     String?
   links               String?
   reminder            DateTime?
   isReminderDone      Boolean             @default(false)