feat(flashcards): révision SM-2, génération IA et page /revision

Livre US-FLASHCARDS avec decks, session de révision, stats et migration Prisma. Finalise le Web Clipper (i18n 15 langues) et corrige les erreurs ESLint bloquant la CI.

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

memento-note/components/note-editor/note-editor-toolbar.tsx

@@ -18,8 +18,9 @@ import { Badge } from '@/components/ui/badge'
 import {
   X, Plus, Palette, Image as ImageIcon, Bell, Eye, Link as LinkIcon, Sparkles,
   Maximize2, Copy, ArrowLeft, ChevronRight, PanelRight, Check, Loader2, Save, MoreHorizontal,
-  Trash2, LogOut, Wand2, Share2, Wind, Paperclip
+  Trash2, LogOut, Wand2, Share2, Wind, Paperclip, GraduationCap
 } from 'lucide-react'
+import { FlashcardGenerateDialog } from '@/components/flashcards/flashcard-generate-dialog'
 import { NoteShareDialog } from './note-share-dialog'
 import { deleteNote, leaveSharedNote } from '@/app/actions/notes'
 import { emitNoteChange } from '@/lib/note-change-sync'
@@ -41,6 +42,7 @@ export function NoteEditorToolbar({ mode, onClose, onToggleAttachments, attachme
   const { t } = useLanguage()
   const [isConverting, setIsConverting] = useState(false)
   const [shareOpen, setShareOpen] = useState(false)
+  const [flashcardsOpen, setFlashcardsOpen] = useState(false)
 
   const notebookName = notebooks.find(nb => nb.id === note.notebookId)?.name || null
 
@@ -169,6 +171,17 @@ export function NoteEditorToolbar({ mode, onClose, onToggleAttachments, attachme
             <Wind size={16} />
           </button>
 
+          {!readOnly && (
+            <button
+              title={t('flashcards.toolbarGenerate')}
+              aria-label={t('flashcards.toolbarGenerate')}
+              onClick={() => setFlashcardsOpen(true)}
+              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"
+            >
+              <GraduationCap size={16} />
+            </button>
+          )}
+
           {!readOnly && onToggleAttachments && (
             <button
               title={t('notes.attachments') || 'Attachments'}
@@ -247,6 +260,16 @@ export function NoteEditorToolbar({ mode, onClose, onToggleAttachments, attachme
             />
           )}
 
+          <FlashcardGenerateDialog
+            open={flashcardsOpen}
+            onClose={() => setFlashcardsOpen(false)}
+            noteId={note.id}
+            noteTitle={state.title || note.title || 'Untitled'}
+            onSaved={(deckId) => {
+              window.open(`/revision?deckId=${encodeURIComponent(deckId)}`, '_self')
+            }}
+          />
+
           <button
             aria-label={t('notes.documentInfoAria')}
             onClick={() => { actions.setInfoOpen(!state.infoOpen); actions.setAiOpen(false) }}