feat: brainstorm sessions, PDF document Q&A, embedding fixes, and UI improvements

- Add brainstorm feature with collaborative canvas, AI idea generation, live cursors, playback, and export
- Add PDF upload/extraction/ingestion pipeline with pgvector document search (RAG)
- Add document Q&A overlay with streaming chat and PDF preview
- Add note attachments UI with status polling, grid layout, and auto-scroll
- Add task extraction AI tool and agent executor improvements
- Fix NoteEmbedding missing updatedAt column, re-index 66 notes with 1536-dim embeddings
- Fix brainstorm 'Create Note' button: add success toast and redirect to created note
- Fix memory echo notification infinite polling
- Fix chat route to always include document_search tool
- Add brainstorm i18n keys across all 14 locales
- Add socket server for real-time brainstorm collaboration
- Add hierarchical notebook selector and organize notebook dialog improvements
- Add sidebar brainstorm section with session management
- Update prisma schema with brainstorm tables, attachments, and document chunks

memento-note/components/note-history-modal.tsx

@@ -1,9 +1,10 @@
 'use client'
 
 import { useCallback, useEffect, useMemo, useRef, useState, useTransition } from 'react'
-import { format } from 'date-fns'
 import { fr } from 'date-fns/locale/fr'
 import { enUS } from 'date-fns/locale/en-US'
+import { faIR } from 'date-fns/locale/fa-IR'
+import { formatAbsoluteDateLocalized } from '@/lib/utils/format-localized-date'
 import * as Diff from 'diff'
 import {
   History, Loader2, RotateCcw, Trash2, GitBranchPlus, Check, GitCompare, X,
@@ -36,12 +37,14 @@ interface NoteHistoryModalProps {
 type ViewMode = 'preview' | 'diff'
 
 function getDateLocale(language: string) {
-  return language === 'fr' ? fr : enUS
+  if (language === 'fr') return fr
+  if (language === 'fa') return faIR
+  return enUS
 }
 
 function fmtDate(date: Date | string, language: string): string {
   const d = typeof date === 'string' ? new Date(date) : date
-  return format(d, 'd MMM yyyy HH:mm', { locale: getDateLocale(language) })
+  return formatAbsoluteDateLocalized(d, language, 'd MMM yyyy HH:mm', getDateLocale(language))
 }
 
 function VersionPreview({ entry, language }: { entry: NoteHistoryEntry; language: string }) {
@@ -306,7 +309,7 @@ export function NoteHistoryModal({
         )}
       >
         {/* ── Header ── */}
-        <div className="border-b border-border/60 px-5 py-3 pr-10">
+        <div className="border-b border-border/60 px-5 py-3 pe-10">
           <DialogTitle className="flex items-center gap-2 text-sm">
             <History className="h-4 w-4 text-primary" />
             {t('notes.history') || 'Historique'}
@@ -329,7 +332,7 @@ export function NoteHistoryModal({
               {t('notes.historyDisabledDesc') || "Activez l'historique pour enregistrer les versions."}
             </p>
             <Button onClick={handleEnable} disabled={isEnabling} size="lg" className="rounded-full px-8">
-              {isEnabling && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
+              {isEnabling && <Loader2 className="me-2 h-4 w-4 animate-spin" />}
               {t('notes.enableHistory') || "Activer l'historique"}
             </Button>
           </div>
@@ -346,7 +349,7 @@ export function NoteHistoryModal({
         ) : (
           <div className="grid grid-cols-[210px_1fr]">
             {/* ── Left: Version list ── */}
-            <div className="max-h-[65vh] overflow-y-auto border-r border-border/60 p-2 space-y-1">
+            <div className="max-h-[65vh] overflow-y-auto border-e border-border/60 p-2 space-y-1">
               {entries.map((entry) => {
                 const isCurrent = entry.version === currentVersion?.version
                 const isSelected = viewMode === 'preview' && selectedId === entry.id
@@ -373,7 +376,7 @@ export function NoteHistoryModal({
                         : isSelected ? 'border-primary/40 bg-primary/8' : 'border-transparent hover:bg-muted/60'
                     )}
                   >
-                    <div className="flex items-center gap-1.5 pr-10">
+                    <div className="flex items-center gap-1.5 pe-10">
                       <span className="text-xs font-semibold text-foreground">v{entry.version}</span>
                       {isCurrent && (
                         <span className="rounded bg-primary/15 px-1.5 py-px text-[10px] font-medium text-primary whitespace-nowrap">
@@ -386,7 +389,7 @@ export function NoteHistoryModal({
                     </p>
 
                     <div className={cn(
-                      'absolute right-1 top-1/2 -translate-y-1/2 flex items-center gap-0.5',
+                      'absolute end-1 top-1/2 -translate-y-1/2 flex items-center gap-0.5',
                       isSelected || isDiffSel ? 'opacity-100' : 'opacity-0 group-hover/entry:opacity-100'
                     )}>
                       {viewMode === 'preview' && (