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/extension/sidepanel.css

@@ -488,3 +488,20 @@ input[type="text"]:focus,
   letter-spacing: 0.08em;
 }
 .preview-tags { justify-content: flex-start; border-top: none; margin-top: 0; padding-top: 0; }
+
+html[dir="rtl"] .header,
+html[dir="rtl"] .header-right,
+html[dir="rtl"] .selection-head,
+html[dir="rtl"] .page-row {
+  flex-direction: row-reverse;
+}
+html[dir="rtl"] .page-row .url {
+  direction: ltr;
+  text-align: left;
+}
+html[dir="rtl"] .notebook-select,
+html[dir="rtl"] .dropdown-item,
+html[dir="rtl"] .label,
+html[dir="rtl"] .sub {
+  text-align: right;
+}