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

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

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

memento-note/components/notes-list-views.tsx

@@ -0,0 +1,941 @@
+'use client'
+
+import { useMemo, useState, useTransition, useEffect, useCallback } from 'react'
+import {
+  DndContext,
+  DragOverlay,
+  PointerSensor,
+  TouchSensor,
+  closestCenter,
+  useSensor,
+  useSensors,
+  type DragEndEvent,
+  type DragStartEvent,
+} from '@dnd-kit/core'
+import {
+  SortableContext,
+  arrayMove,
+  rectSortingStrategy,
+  useSortable,
+} from '@dnd-kit/sortable'
+import { CSS } from '@dnd-kit/utilities'
+import { useRouter } from 'next/navigation'
+import { useSession } from 'next-auth/react'
+import type { Note } from '@/lib/types'
+import { NotesEditorialView } from '@/components/notes-editorial-view'
+import type { NoteCollectionActions } from '@/lib/note-change-sync'
+import { getNoteDisplayTitle, getNoteFeedImage, getNotePlainExcerpt, prepareNoteIllustrationForGrid } from '@/lib/note-preview'
+import { useLanguage } from '@/lib/i18n'
+import { useNotebooks } from '@/context/notebooks-context'
+import { useLabelsQuery } from '@/lib/query-hooks'
+import { updateNote } from '@/app/actions/notes'
+import { getAISettings } from '@/app/actions/ai-settings'
+import { generateNoteIllustrationSvg } from '@/app/actions/note-illustration'
+import { LabelBadge } from '@/components/label-badge'
+import { formatAbsoluteDateLocalized } from '@/lib/utils/format-localized-date'
+import { motion } from 'motion/react'
+import { MoveToNotebookPicker } from '@/components/move-to-notebook-picker'
+import { toast } from 'sonner'
+import {
+  Pin,
+  FileText,
+  Link2,
+  CheckSquare,
+  ChevronUp,
+  ChevronDown,
+  Wind,
+  Trash2,
+  FolderOpen,
+  Sparkles,
+  Loader2,
+} from 'lucide-react'
+import { cn } from '@/lib/utils'
+import { formatDistanceToNow } from 'date-fns'
+import { fr } from 'date-fns/locale/fr'
+import { enUS } from 'date-fns/locale/en-US'
+
+export type NotesLayoutMode = 'grid' | 'list' | 'table'
+export type NotesViewType = 'notes' | 'tasks'
+
+type TaskItem = {
+  id: string
+  noteId: string
+  noteTitle: string
+  text: string
+  completed: boolean
+  lineIndex: number
+}
+
+function getNoteTasksStats(content: string) {
+  const lines = (content || '').split('\n')
+  let total = 0
+  let completed = 0
+  for (const line of lines) {
+    const match = line.match(/^\s*[-*]?\s*\[([ xX])\]\s*(.*)$/)
+    if (match) {
+      total++
+      if (match[1].toLowerCase() === 'x') completed++
+    }
+  }
+  return { completed, total }
+}
+
+function extractTasksFromNotes(notes: Note[]): TaskItem[] {
+  const tasks: TaskItem[] = []
+  for (const note of notes) {
+    const title = note.title?.trim() || 'Sans titre'
+    const lines = (note.content || '').split('\n')
+    lines.forEach((line, idx) => {
+      const match = line.match(/^\s*[-*]?\s*\[([ xX])\]\s*(.*)$/)
+      if (match) {
+        tasks.push({
+          id: `${note.id}-${idx}`,
+          noteId: note.id,
+          noteTitle: title,
+          text: match[2].trim(),
+          completed: match[1].toLowerCase() === 'x',
+          lineIndex: idx,
+        })
+      }
+    })
+  }
+  return tasks
+}
+
+function getNotebookColor(notebookId: string | null | undefined, name?: string) {
+  const colors = [
+    { bg: 'bg-[#A47148]/5 dark:bg-[#A47148]/10', border: 'border-[#A47148]/20', text: 'text-[#A47148]' },
+    { bg: 'bg-emerald-500/5 dark:bg-emerald-500/10', border: 'border-emerald-500/15', text: 'text-emerald-600 dark:text-emerald-400' },
+    { bg: 'bg-indigo-500/5 dark:bg-indigo-500/10', border: 'border-indigo-500/15', text: 'text-indigo-600 dark:text-indigo-400' },
+    { bg: 'bg-blue-500/5 dark:bg-blue-500/10', border: 'border-blue-500/15', text: 'text-blue-600 dark:text-blue-400' },
+    { bg: 'bg-amber-500/5 dark:bg-amber-500/10', border: 'border-amber-500/15', text: 'text-amber-600 dark:text-amber-400' },
+    { bg: 'bg-rose-500/5 dark:bg-rose-500/10', border: 'border-rose-500/15', text: 'text-rose-600 dark:text-rose-400' },
+  ]
+  const key = name || notebookId || ''
+  const idx = Math.abs(key.split('').reduce((acc, char) => acc + char.charCodeAt(0), 0)) % colors.length
+  return colors[idx]
+}
+
+function NoteLabelsRow({
+  labelNames,
+  allLabels,
+  max = 3,
+}: {
+  labelNames: string[] | null | undefined
+  allLabels: { name: string; type?: 'ai' | 'user' }[]
+  max?: number
+}) {
+  if (!labelNames?.length) return null
+  return (
+    <div className="flex items-center gap-1 flex-wrap">
+      {labelNames.slice(0, max).map((labelName) => {
+        const def = allLabels.find((l) => l.name === labelName)
+        return (
+          <LabelBadge key={labelName} label={labelName} type={def?.type} variant="default" />
+        )
+      })}
+      {labelNames.length > max && (
+        <span className="text-[8.5px] font-mono text-muted-foreground font-bold shrink-0 bg-muted/50 px-1 py-0.5 rounded">
+          +{labelNames.length - max}
+        </span>
+      )}
+    </div>
+  )
+}
+
+function NoteGridIllustrationButton({
+  busy,
+  onClick,
+  className,
+}: {
+  busy: boolean
+  onClick: (e: React.MouseEvent) => void
+  className?: string
+}) {
+  const { t } = useLanguage()
+  return (
+    <button
+      type="button"
+      aria-label={t('notes.generateIllustration') || 'Générer une illustration IA'}
+      title={t('notes.generateIllustration') || 'Générer une illustration IA'}
+      className={cn(
+        'absolute bottom-2 end-2 flex h-9 w-9 items-center justify-center rounded-full border border-border bg-background/95 text-foreground shadow-card-rest backdrop-blur-sm transition-colors hover:bg-accent z-10',
+        className,
+      )}
+      onClick={onClick}
+      disabled={busy}
+    >
+      {busy ? <Loader2 className="h-4 w-4 animate-spin" /> : <Sparkles className="h-4 w-4 text-primary" />}
+    </button>
+  )
+}
+
+function NoteGridThumbnail({
+  note,
+  aiIllustrationEnabled,
+  onNoteIllustrationGenerated,
+}: {
+  note: Note
+  aiIllustrationEnabled?: boolean
+  onNoteIllustrationGenerated?: (noteId: string) => void | Promise<void>
+}) {
+  const { t } = useLanguage()
+  const [busy, setBusy] = useState(false)
+  const img = getNoteFeedImage(note)
+
+  const handleGenerateSvg = async (e: React.MouseEvent) => {
+    e.stopPropagation()
+    if (!aiIllustrationEnabled || busy || img) return
+    setBusy(true)
+    try {
+      const res = await generateNoteIllustrationSvg(note.id, { skipRevalidation: true })
+      if (!res.ok) {
+        toast.error(res.error)
+      } else {
+        toast.success(t('notes.illustrationGenerated') || 'Illustration générée')
+        await onNoteIllustrationGenerated?.(note.id)
+      }
+    } finally {
+      setBusy(false)
+    }
+  }
+
+  const aiButtonClass = 'opacity-0 group-hover/card:opacity-100 focus-visible:opacity-100'
+
+  if (img) {
+    return (
+      <img
+        src={img}
+        alt=""
+        className="w-full h-full object-cover mix-blend-multiply dark:mix-blend-normal opacity-85 grayscale contrast-115 group-hover/card:scale-105 group-hover/card:grayscale-0 group-hover/card:opacity-100 transition-all duration-500"
+      />
+    )
+  }
+  if (note.illustrationSvg) {
+    return (
+      <>
+        <div
+          className="absolute inset-0 w-full h-full overflow-hidden bg-[#F5F0E8] dark:bg-muted/30"
+          dangerouslySetInnerHTML={{ __html: prepareNoteIllustrationForGrid(note.illustrationSvg) }}
+          aria-hidden
+        />
+        {aiIllustrationEnabled && (
+          <NoteGridIllustrationButton busy={busy} onClick={handleGenerateSvg} className={aiButtonClass} />
+        )}
+      </>
+    )
+  }
+  return (
+    <>
+      <div className="w-full h-full flex items-center justify-center bg-muted/40 text-muted-foreground/50">
+        <FileText size={28} strokeWidth={1.25} />
+      </div>
+      {aiIllustrationEnabled && (
+        <NoteGridIllustrationButton busy={busy} onClick={handleGenerateSvg} className={aiButtonClass} />
+      )}
+    </>
+  )
+}
+
+export type { NoteCollectionActions } from '@/lib/note-change-sync'
+
+type NotesListViewsProps = {
+  notes: Note[]
+  pinnedNotes?: Note[]
+  viewType: NotesViewType
+  layoutMode: NotesLayoutMode
+  onOpen: (note: Note, readOnly?: boolean) => void
+  onOpenHistory?: (note: Note) => void
+  notebookName?: string
+  onGridReorder?: (orderedIds: string[]) => void | Promise<void>
+} & Partial<NoteCollectionActions>
+
+export function NotesListViews({
+  notes,
+  pinnedNotes = [],
+  viewType,
+  layoutMode,
+  onOpen,
+  onOpenHistory,
+  notebookName,
+  onTogglePin,
+  onDeleteNote,
+  onArchiveNote,
+  onMoveToNotebook,
+  onNotePatch,
+  onNoteIllustrationGenerated,
+  onGridReorder,
+}: NotesListViewsProps) {
+  const { t, language } = useLanguage()
+  const { data: session } = useSession()
+  const { notebooks } = useNotebooks()
+  const { data: allLabels = [] } = useLabelsQuery()
+  const [, startTransition] = useTransition()
+  const [sortColumn, setSortColumn] = useState<'title' | 'notebook' | 'tasks' | 'modified' | null>(null)
+  const [sortDirection, setSortDirection] = useState<'asc' | 'desc' | null>(null)
+  const [aiIllustrationEnabled, setAiIllustrationEnabled] = useState(false)
+
+  useEffect(() => {
+    if (!session?.user?.id) {
+      setAiIllustrationEnabled(false)
+      return
+    }
+    getAISettings(session.user.id)
+      .then((s) => setAiIllustrationEnabled(s.paragraphRefactor !== false))
+      .catch(() => setAiIllustrationEnabled(false))
+  }, [session?.user?.id])
+
+  const untitled = t('notes.untitled')
+  const dateLocale = language === 'fr' ? fr : enUS
+
+  const allDisplayNotes = useMemo(() => {
+    const unpinned = notes.filter((n) => !n.isPinned)
+    return [...pinnedNotes, ...unpinned]
+  }, [notes, pinnedNotes])
+
+  const extractTasks = useMemo(() => extractTasksFromNotes(allDisplayNotes), [allDisplayNotes])
+  const completedTasksCount = extractTasks.filter((task) => task.completed).length
+
+  const handleToggleTask = (task: TaskItem) => {
+    const note = allDisplayNotes.find((n) => n.id === task.noteId)
+    if (!note) return
+    const lines = (note.content || '').split('\n')
+    const line = lines[task.lineIndex]
+    if (!line) return
+    const nextChar = task.completed ? ' ' : 'x'
+    lines[task.lineIndex] = line.replace(/\[([ xX])\]/, `[${nextChar}]`)
+    startTransition(async () => {
+      await updateNote(note.id, { content: lines.join('\n') }, { skipRevalidation: true })
+      onNotePatch?.(note.id, { content: lines.join('\n') })
+    })
+  }
+
+  const handleSort = (field: 'title' | 'notebook' | 'tasks' | 'modified') => {
+    if (sortColumn !== field) {
+      setSortColumn(field)
+      setSortDirection('asc')
+    } else if (sortDirection === 'asc') {
+      setSortDirection('desc')
+    } else {
+      setSortColumn(null)
+      setSortDirection(null)
+    }
+  }
+
+  const sortedNotes = useMemo(() => {
+    if (!sortColumn || !sortDirection) return allDisplayNotes
+    const copy = [...allDisplayNotes]
+    return copy.sort((a, b) => {
+      let valA: string | number = ''
+      let valB: string | number = ''
+      if (sortColumn === 'title') {
+        valA = getNoteDisplayTitle(a, untitled).toLowerCase()
+        valB = getNoteDisplayTitle(b, untitled).toLowerCase()
+      } else if (sortColumn === 'notebook') {
+        valA = notebooks.find((nb) => nb.id === a.notebookId)?.name?.toLowerCase() || ''
+        valB = notebooks.find((nb) => nb.id === b.notebookId)?.name?.toLowerCase() || ''
+      } else if (sortColumn === 'tasks') {
+        valA = getNoteTasksStats(a.content || '').completed
+        valB = getNoteTasksStats(b.content || '').completed
+      } else {
+        valA = new Date(a.updatedAt).getTime()
+        valB = new Date(b.updatedAt).getTime()
+      }
+      if (valA < valB) return sortDirection === 'asc' ? -1 : 1
+      if (valA > valB) return sortDirection === 'asc' ? 1 : -1
+      return 0
+    })
+  }, [allDisplayNotes, sortColumn, sortDirection, notebooks, untitled])
+
+  const SortIcon = ({ field }: { field: typeof sortColumn }) =>
+    sortColumn === field ? (
+      sortDirection === 'asc' ? <ChevronUp size={12} /> : <ChevronDown size={12} />
+    ) : null
+
+  if (viewType === 'tasks') {
+    return (
+      <div className="max-w-4xl mx-auto space-y-6">
+        <div className="flex items-center justify-between pb-3 border-b border-foreground/5">
+          <div className="flex items-center gap-2">
+            <div className="w-2 h-2 rounded-full bg-emerald-500 animate-pulse" />
+            <span className="text-[10px] uppercase font-bold tracking-[0.2em] text-muted-foreground">
+              {t('notes.tasksHeader')}
+            </span>
+          </div>
+          <div className="text-[11px] font-mono font-bold text-foreground bg-foreground/[0.03] dark:bg-white/5 py-1 px-3 rounded-full">
+            {t('notes.tasksSummary')
+              .replace('{count}', String(extractTasks.length))
+              .replace('{completed}', String(completedTasksCount))}
+          </div>
+        </div>
+
+        {extractTasks.length > 0 ? (
+          <div className="overflow-hidden border border-border/40 rounded-2xl bg-card/30 shadow-sm">
+            <div className="divide-y divide-foreground/[0.04]">
+              {extractTasks.map((task) => (
+                <div
+                  key={task.id}
+                  className="p-4 flex items-center justify-between gap-4 hover:bg-foreground/[0.01] transition-all group"
+                >
+                  <div className="flex items-center gap-3.5 flex-grow min-w-0">
+                    <button
+                      type="button"
+                      onClick={() => handleToggleTask(task)}
+                      className={cn(
+                        'w-5 h-5 rounded-md border flex items-center justify-center transition-all shrink-0',
+                        task.completed
+                          ? 'bg-brand-accent border-brand-accent text-white'
+                          : 'border-border hover:border-brand-accent/60 bg-transparent',
+                      )}
+                    >
+                      {task.completed && <span className="text-xs font-bold">✓</span>}
+                    </button>
+                    <span
+                      className={cn(
+                        'text-[13px] font-light leading-relaxed truncate',
+                        task.completed && 'line-through text-muted-foreground',
+                      )}
+                    >
+                      {task.text}
+                    </span>
+                  </div>
+                  <div className="flex items-center gap-2 shrink-0">
+                    <span className="text-[9.5px] uppercase font-mono tracking-wider text-muted-foreground max-w-[140px] truncate">
+                      {t('notes.taskFromNote').replace('{title}', task.noteTitle)}
+                    </span>
+                    <button
+                      type="button"
+                      onClick={() => {
+                        const note = allDisplayNotes.find((n) => n.id === task.noteId)
+                        if (note) onOpen(note)
+                      }}
+                      className="p-1.5 rounded-full hover:bg-foreground/5 text-muted-foreground hover:text-foreground transition-all"
+                      title={t('notes.openSourceNote')}
+                    >
+                      <Link2 size={13} />
+                    </button>
+                  </div>
+                </div>
+              ))}
+            </div>
+          </div>
+        ) : (
+          <div className="h-64 flex flex-col items-center justify-center text-center space-y-4">
+            <div className="w-12 h-12 rounded-full bg-muted/50 flex items-center justify-center border border-border/40">
+              <CheckSquare size={18} className="text-muted-foreground/60" />
+            </div>
+            <p className="font-memento-serif text-lg italic text-muted-foreground">{t('notes.tasksEmptyTitle')}</p>
+            <p className="text-xs text-muted-foreground/70 max-w-sm leading-relaxed">{t('notes.tasksEmptyHint')}</p>
+          </div>
+        )}
+      </div>
+    )
+  }
+
+  if (layoutMode === 'grid') {
+    return (
+      <NotesMasonryGrid
+        pinnedNotes={pinnedNotes}
+        unpinnedNotes={notes.filter((n) => !n.isPinned)}
+        untitled={untitled}
+        allLabels={allLabels}
+        notebooks={notebooks}
+        aiIllustrationEnabled={aiIllustrationEnabled}
+        onOpen={onOpen}
+        onTogglePin={onTogglePin}
+        onDeleteNote={onDeleteNote}
+        onMoveToNotebook={onMoveToNotebook}
+        onNoteIllustrationGenerated={onNoteIllustrationGenerated}
+        onGridReorder={onGridReorder}
+        pinnedLabel={t('notes.pinned')}
+      />
+    )
+  }
+
+  if (layoutMode === 'table') {
+    return (
+      <div className="max-w-6xl mx-auto">
+        <div className="overflow-x-auto border border-border/40 rounded-2xl bg-card/30 shadow-sm">
+          <table className="w-full text-left border-collapse min-w-[720px]">
+            <thead>
+              <tr className="border-b border-border/30">
+                <th
+                  className="w-[32%] px-4 py-3 text-[10px] uppercase tracking-widest font-black text-muted-foreground cursor-pointer hover:text-foreground"
+                  onClick={() => handleSort('title')}
+                >
+                  <span className="inline-flex items-center gap-1">
+                    {t('notes.tableTitle')} <SortIcon field="title" />
+                  </span>
+                </th>
+                <th
+                  className="w-[15%] px-4 py-3 text-[10px] uppercase tracking-widest font-black text-muted-foreground cursor-pointer hover:text-foreground"
+                  onClick={() => handleSort('notebook')}
+                >
+                  <span className="inline-flex items-center gap-1">
+                    {t('notes.tableNotebook')} <SortIcon field="notebook" />
+                  </span>
+                </th>
+                <th className="w-[22%] px-4 py-3 text-[10px] uppercase tracking-widest font-black text-muted-foreground">
+                  {t('notes.tableLabels')}
+                </th>
+                <th
+                  className="w-[12%] px-4 py-3 text-[10px] uppercase tracking-widest font-black text-muted-foreground cursor-pointer hover:text-foreground"
+                  onClick={() => handleSort('tasks')}
+                >
+                  <span className="inline-flex items-center gap-1">
+                    {t('notes.tableTasks')} <SortIcon field="tasks" />
+                  </span>
+                </th>
+                <th
+                  className="w-[13%] px-4 py-3 text-[10px] uppercase tracking-widest font-black text-muted-foreground cursor-pointer hover:text-foreground"
+                  onClick={() => handleSort('modified')}
+                >
+                  <span className="inline-flex items-center gap-1">
+                    {t('notes.tableModified')} <SortIcon field="modified" />
+                  </span>
+                </th>
+              </tr>
+            </thead>
+            <tbody className="divide-y divide-foreground/[0.03]">
+              {sortedNotes.map((note) => {
+                const title = getNoteDisplayTitle(note, untitled)
+                const nb = notebooks.find((n) => n.id === note.notebookId)
+                const nbColor = getNotebookColor(note.notebookId, nb?.name)
+                const stats = getNoteTasksStats(note.content || '')
+                return (
+                  <tr
+                    key={note.id}
+                    onClick={() => onOpen(note)}
+                    className="h-11 hover:bg-foreground/[0.02] cursor-pointer transition-colors group"
+                  >
+                    <td className="px-4 py-2 font-memento-serif text-[13px] font-medium truncate max-w-[280px]">
+                      <span className="inline-flex items-center gap-2 truncate group-hover:text-brand-accent transition-colors">
+                        {note.isPinned && <Pin size={11} className="text-amber-500 fill-amber-500 shrink-0" />}
+                        {title}
+                      </span>
+                    </td>
+                    <td className="px-4 py-2">
+                      {nb ? (
+                        <span
+                          className={cn(
+                            'inline-block px-2 py-0.5 rounded-full text-[9px] font-bold tracking-wide border truncate max-w-[125px]',
+                            nbColor.bg,
+                            nbColor.border,
+                            nbColor.text,
+                          )}
+                        >
+                          {nb.name}
+                        </span>
+                      ) : (
+                        <span className="text-muted-foreground text-[10px]">—</span>
+                      )}
+                    </td>
+                    <td className="px-4 py-2">
+                      <NoteLabelsRow labelNames={note.labels} allLabels={allLabels} max={3} />
+                    </td>
+                    <td className="px-4 py-2 font-mono text-[10.5px] font-bold text-foreground/80">
+                      {stats.total > 0 ? (
+                        <span className={stats.completed === stats.total ? 'text-emerald-600 dark:text-emerald-400' : 'text-muted-foreground'}>
+                          {stats.completed}/{stats.total} <span className="text-[9px] font-sans">✓</span>
+                        </span>
+                      ) : (
+                        <span className="text-muted-foreground/40">—</span>
+                      )}
+                    </td>
+                    <td className="px-4 py-2 text-[10.5px] font-mono text-muted-foreground whitespace-nowrap">
+                      {formatDistanceToNow(new Date(note.updatedAt), { addSuffix: true, locale: dateLocale })}
+                    </td>
+                  </tr>
+                )
+              })}
+            </tbody>
+          </table>
+        </div>
+      </div>
+    )
+  }
+
+  return (
+    <div className="max-w-3xl space-y-16">
+      {pinnedNotes.length > 0 && (
+        <div className="mb-6">
+          <h2 className="text-[10px] font-bold text-muted-foreground tracking-widest uppercase mb-4 px-2">
+            {t('notes.pinned')}
+          </h2>
+          <NotesEditorialView
+            notes={pinnedNotes}
+            onOpen={onOpen}
+            notebookName={notebookName}
+            onOpenHistory={onOpenHistory}
+            onTogglePin={onTogglePin}
+            onDeleteNote={onDeleteNote}
+            onArchiveNote={onArchiveNote}
+            onMoveToNotebook={onMoveToNotebook}
+            onNotePatch={onNotePatch}
+            onNoteIllustrationGenerated={onNoteIllustrationGenerated}
+          />
+        </div>
+      )}
+      {notes.filter((n) => !n.isPinned).length > 0 && (
+        <NotesEditorialView
+          notes={notes.filter((n) => !n.isPinned)}
+          onOpen={onOpen}
+          notebookName={notebookName}
+          onOpenHistory={onOpenHistory}
+          onTogglePin={onTogglePin}
+          onDeleteNote={onDeleteNote}
+          onArchiveNote={onArchiveNote}
+          onMoveToNotebook={onMoveToNotebook}
+          onNotePatch={onNotePatch}
+          onNoteIllustrationGenerated={onNoteIllustrationGenerated}
+        />
+      )}
+    </div>
+  )
+}
+
+function formatGridCardDate(date: Date | string, language: string): string {
+  const d = typeof date === 'string' ? new Date(date) : date
+  const locale = language === 'fr' ? fr : enUS
+  if (language === 'fa') {
+    return formatAbsoluteDateLocalized(d, language, 'd MMM yyyy', locale)
+  }
+  const month = d.toLocaleDateString('en-US', { month: 'short', timeZone: 'UTC' })
+  const day = d.getUTCDate()
+  const year = d.getUTCFullYear()
+  return `${month.toUpperCase()} ${day}, ${year}`
+}
+
+type GridCardSharedProps = {
+  note: Note
+  index: number
+  untitled: string
+  allLabels: { name: string; type?: 'ai' | 'user' }[]
+  notebooks: { id: string; name: string }[]
+  aiIllustrationEnabled?: boolean
+  onOpen: (note: Note) => void
+  onTogglePin?: (note: Note) => void | Promise<void>
+  onDeleteNote?: (note: Note) => void | Promise<void>
+  onMoveToNotebook?: (note: Note, notebookId: string | null) => void | Promise<void>
+  onNoteIllustrationGenerated?: (noteId: string) => void | Promise<void>
+  isOverlay?: boolean
+}
+
+function NotesMasonryGrid({
+  pinnedNotes,
+  unpinnedNotes,
+  pinnedLabel,
+  onGridReorder,
+  ...cardProps
+}: {
+  pinnedNotes: Note[]
+  unpinnedNotes: Note[]
+  pinnedLabel: string
+  onGridReorder?: (orderedIds: string[]) => void | Promise<void>
+} & Omit<GridCardSharedProps, 'note' | 'index' | 'isOverlay'>) {
+  const [activeId, setActiveId] = useState<string | null>(null)
+
+  const displayNotes = useMemo(
+    () => [...pinnedNotes, ...unpinnedNotes],
+    [pinnedNotes, unpinnedNotes],
+  )
+
+  const activeNote = useMemo(
+    () => displayNotes.find((n) => n.id === activeId) ?? null,
+    [displayNotes, activeId],
+  )
+
+  const sensors = useSensors(
+    useSensor(PointerSensor, { activationConstraint: { distance: 8 } }),
+    useSensor(TouchSensor, { activationConstraint: { delay: 200, tolerance: 8 } }),
+  )
+
+  const handleDragStart = useCallback((event: DragStartEvent) => {
+    setActiveId(event.active.id as string)
+  }, [])
+
+  const handleDragEnd = useCallback(
+    (event: DragEndEvent) => {
+      const { active, over } = event
+      setActiveId(null)
+      if (!over || active.id === over.id || !onGridReorder) return
+
+      const activeIdx = displayNotes.findIndex((n) => n.id === active.id)
+      const overIdx = displayNotes.findIndex((n) => n.id === over.id)
+      if (activeIdx === -1 || overIdx === -1) return
+
+      const activeNoteItem = displayNotes[activeIdx]
+      const overNoteItem = displayNotes[overIdx]
+      if (activeNoteItem.isPinned !== overNoteItem.isPinned) return
+
+      const reordered = arrayMove(displayNotes, activeIdx, overIdx)
+      onGridReorder(reordered.map((n) => n.id))
+    },
+    [displayNotes, onGridReorder],
+  )
+
+  const sortEnabled = Boolean(onGridReorder)
+
+  return (
+    <DndContext
+      id="notes-grid-masonry"
+      sensors={sensors}
+      collisionDetection={closestCenter}
+      onDragStart={handleDragStart}
+      onDragEnd={handleDragEnd}
+    >
+      <div className="max-w-6xl mx-auto space-y-8">
+        {pinnedNotes.length > 0 && (
+          <div>
+            <h2 className="text-[10px] font-bold text-muted-foreground tracking-widest uppercase mb-4 px-1">
+              {pinnedLabel}
+            </h2>
+            <NotesGridSection
+              notes={pinnedNotes}
+              sortEnabled={sortEnabled}
+              {...cardProps}
+            />
+          </div>
+        )}
+        {unpinnedNotes.length > 0 && (
+          <NotesGridSection
+            notes={unpinnedNotes}
+            sortEnabled={sortEnabled}
+            indexOffset={pinnedNotes.length}
+            {...cardProps}
+          />
+        )}
+      </div>
+
+      <DragOverlay dropAnimation={{ duration: 200, easing: 'ease' }}>
+        {activeNote ? (
+          <div className="cursor-grabbing shadow-2xl rounded-2xl opacity-95">
+            <GridCard note={activeNote} index={0} isOverlay {...cardProps} />
+          </div>
+        ) : null}
+      </DragOverlay>
+    </DndContext>
+  )
+}
+
+function NotesGridSection({
+  notes,
+  sortEnabled,
+  indexOffset = 0,
+  untitled,
+  allLabels,
+  notebooks,
+  aiIllustrationEnabled,
+  onOpen,
+  onTogglePin,
+  onDeleteNote,
+  onMoveToNotebook,
+  onNoteIllustrationGenerated,
+  className,
+}: Omit<GridCardSharedProps, 'note' | 'index' | 'isOverlay'> & {
+  notes: Note[]
+  sortEnabled?: boolean
+  indexOffset?: number
+  className?: string
+}) {
+  const ids = useMemo(() => notes.map((n) => n.id), [notes])
+
+  const grid = (
+    <div className={cn('grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6', className)}>
+      {notes.map((note, index) =>
+        sortEnabled ? (
+          <SortableGridCard
+            key={note.id}
+            note={note}
+            index={indexOffset + index}
+            untitled={untitled}
+            allLabels={allLabels}
+            notebooks={notebooks}
+            aiIllustrationEnabled={aiIllustrationEnabled}
+            onOpen={onOpen}
+            onTogglePin={onTogglePin}
+            onDeleteNote={onDeleteNote}
+            onMoveToNotebook={onMoveToNotebook}
+            onNoteIllustrationGenerated={onNoteIllustrationGenerated}
+          />
+        ) : (
+          <GridCard
+            key={note.id}
+            note={note}
+            index={indexOffset + index}
+            untitled={untitled}
+            allLabels={allLabels}
+            notebooks={notebooks}
+            aiIllustrationEnabled={aiIllustrationEnabled}
+            onOpen={onOpen}
+            onTogglePin={onTogglePin}
+            onDeleteNote={onDeleteNote}
+            onMoveToNotebook={onMoveToNotebook}
+            onNoteIllustrationGenerated={onNoteIllustrationGenerated}
+          />
+        ),
+      )}
+    </div>
+  )
+
+  if (!sortEnabled) return grid
+
+  return (
+    <SortableContext items={ids} strategy={rectSortingStrategy}>
+      {grid}
+    </SortableContext>
+  )
+}
+
+function SortableGridCard(props: GridCardSharedProps) {
+  const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({
+    id: props.note.id,
+  })
+
+  const style: React.CSSProperties = {
+    transform: CSS.Transform.toString(transform),
+    transition,
+  }
+
+  return (
+    <div
+      ref={setNodeRef}
+      style={style}
+      {...attributes}
+      {...listeners}
+      className={cn(
+        'touch-none cursor-grab active:cursor-grabbing',
+        isDragging && 'opacity-40',
+      )}
+    >
+      <GridCard {...props} />
+    </div>
+  )
+}
+
+function GridCard({
+  note,
+  index,
+  untitled,
+  allLabels,
+  notebooks,
+  aiIllustrationEnabled,
+  onOpen,
+  onTogglePin,
+  onDeleteNote,
+  onMoveToNotebook,
+  onNoteIllustrationGenerated,
+  isOverlay = false,
+}: GridCardSharedProps) {
+  const router = useRouter()
+  const { t, language } = useLanguage()
+  const title = getNoteDisplayTitle(note, untitled)
+  const excerpt = getNotePlainExcerpt(note, 110)
+  const stats = getNoteTasksStats(note.content || '')
+  const formattedDate = formatGridCardDate(note.updatedAt, language)
+
+  const handlePinClick = (e: React.MouseEvent) => {
+    e.stopPropagation()
+    onTogglePin?.(note)
+  }
+
+  const handleDeleteClick = (e: React.MouseEvent) => {
+    e.stopPropagation()
+    onDeleteNote?.(note)
+  }
+
+  const handleBrainstormClick = (e: React.MouseEvent) => {
+    e.stopPropagation()
+    const seed = `${title}\n\n${excerpt}`.trim() || title
+    router.push(`/brainstorm?seed=${encodeURIComponent(seed.slice(0, 300))}&sourceNoteId=${note.id}`)
+  }
+
+  return (
+    <motion.div
+      initial={isOverlay ? false : { opacity: 0, y: 15 }}
+      animate={isOverlay ? undefined : { opacity: 1, y: 0 }}
+      transition={isOverlay ? undefined : { delay: 0.04 * index, duration: 0.5 }}
+      onClick={() => onOpen(note)}
+      className="bg-card/60 border border-border/40 rounded-2xl overflow-hidden hover:shadow-md hover:border-brand-accent/30 transition-all duration-300 group/card cursor-pointer flex flex-col relative"
+    >
+      <div className="aspect-[16/10] bg-muted/30 border-b border-border/20 overflow-hidden relative">
+        <NoteGridThumbnail
+          note={note}
+          aiIllustrationEnabled={aiIllustrationEnabled}
+          onNoteIllustrationGenerated={onNoteIllustrationGenerated}
+        />
+        {note.isPinned && (
+          <div className="absolute top-3 start-3 bg-background/90 backdrop-blur-sm p-1.5 rounded-full shadow-sm border border-border/40 text-amber-500">
+            <Pin size={11} className="fill-amber-500" />
+          </div>
+        )}
+        {stats.total > 0 && (
+          <div className="absolute top-3 end-3 bg-background/90 backdrop-blur-sm py-1 px-2.5 rounded-full shadow-sm border border-border/40 text-[9.5px] font-mono font-bold text-muted-foreground">
+            {stats.completed}/{stats.total} ✓
+          </div>
+        )}
+      </div>
+      <div className="p-5 flex-1 flex flex-col justify-between space-y-4">
+        <div className="space-y-2.5">
+          <NoteLabelsRow labelNames={note.labels} allLabels={allLabels} max={2} />
+          <h3 className="font-memento-serif text-base font-semibold text-foreground leading-snug line-clamp-2 group-hover/card:text-brand-accent transition-colors">
+            {title}
+          </h3>
+          {excerpt && (
+            <p className="text-xs text-muted-foreground leading-relaxed line-clamp-3 font-light">{excerpt}</p>
+          )}
+        </div>
+        <div className="flex items-center justify-between pt-3 border-t border-foreground/[0.03] dark:border-white/[0.03] text-[9.5px] text-muted-foreground font-medium uppercase tracking-wider">
+          <span>{formattedDate}</span>
+          <div className="flex items-center gap-1 opacity-0 group-hover/card:opacity-100 transition-opacity">
+            <button
+              type="button"
+              onClick={handleBrainstormClick}
+              className="p-1 px-2 rounded-full hover:bg-brand-accent/10 text-brand-accent transition-all flex items-center gap-1 cursor-pointer"
+              title={t('notes.brainstormThisIdea') || 'Brainstormer cette idée'}
+              aria-label={t('notes.brainstormThisIdeaAria') || t('notes.brainstormThisIdea') || 'Brainstormer cette idée'}
+            >
+              <Wind size={11} />
+            </button>
+            <button
+              type="button"
+              onClick={handlePinClick}
+              className="p-1 px-2 rounded-full hover:bg-muted text-foreground transition-all cursor-pointer"
+              title={note.isPinned ? (t('notes.unpin') || 'Désépingler') : (t('notes.pin') || 'Épingler')}
+              aria-label={note.isPinned ? (t('notes.unpin') || 'Désépingler') : (t('notes.pin') || 'Épingler')}
+            >
+              <Pin size={11} className={note.isPinned ? 'fill-amber-500 text-amber-500' : ''} />
+            </button>
+            {onMoveToNotebook && (
+              <MoveToNotebookPicker
+                notebooks={notebooks}
+                currentNotebookId={note.notebookId}
+                onSelect={(notebookId) => onMoveToNotebook(note, notebookId)}
+                align="end"
+                preferDropUp
+              >
+                <button
+                  type="button"
+                  className="p-1 px-2 rounded-full hover:bg-muted text-foreground transition-all cursor-pointer"
+                  title={t('notebookSuggestion.moveToNotebook') || 'Déplacer vers…'}
+                  aria-label={t('notebookSuggestion.moveToNotebook') || 'Déplacer vers…'}
+                >
+                  <FolderOpen size={11} />
+                </button>
+              </MoveToNotebookPicker>
+            )}
+            <button
+              type="button"
+              onClick={handleDeleteClick}
+              className="p-1 px-2 rounded-full hover:bg-rose-50 dark:hover:bg-rose-500/10 text-rose-500 transition-all cursor-pointer"
+              title={t('notes.delete') || 'Supprimer'}
+              aria-label={t('notes.delete') || 'Supprimer'}
+            >
+              <Trash2 size={11} />
+            </button>
+          </div>
+        </div>
+      </div>
+    </motion.div>
+  )
+}