feat: rename keep-notes to memento-note, migrate to PostgreSQL, fix MCP bugs

- Rename directory keep-notes -> memento-note with all code references
- Prisma: SQLite -> PostgreSQL (both app and MCP server schemas)
- Sync MCP schema with main app (add missing fields, relations, indexes)
- Delete 17 SQLite migrations (clean slate for PostgreSQL)
- Remove SQLite dependencies (@libsql/client, better-sqlite3, etc.)
- Fix MCP server: hardcoded Windows DB paths -> DATABASE_URL env var
- Fix MCP server: .dockerignore excluded index-sse.js (SSE mode broken)
- MCP Dockerfile: node:20 -> node:22
- Docker Compose: add postgres service, remove SQLite volume
- Generate favicon.ico, icon-192.png, icon-512.png, apple-icon.png
- Update layout.tsx icons and manifest.json for PNG icons
- Update all .env files for PostgreSQL
- Rewrite README.md with updated sections
- Remove mcp-server/node_modules and prisma/client-generated from git tracking

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

memento-note/components/sidebar.tsx

@@ -0,0 +1,120 @@
+'use client'
+
+import { useState, useEffect } from 'react'
+import Link from 'next/link'
+import { usePathname, useSearchParams } from 'next/navigation'
+import { cn } from '@/lib/utils'
+import {
+  Lightbulb,
+  Bell,
+  Tag,
+  Archive,
+  Trash2,
+  Pencil,
+  ChevronRight,
+  Plus
+} from 'lucide-react'
+import { useLabels } from '@/context/LabelContext'
+import { useLanguage } from '@/lib/i18n'
+import { NotebooksList } from './notebooks-list'
+
+export function Sidebar({ className, user }: { className?: string, user?: any }) {
+  const pathname = usePathname()
+  const searchParams = useSearchParams()
+  const { labels } = useLabels()
+  const { t } = useLanguage()
+
+  // Helper to determine if a link is active
+  const isActive = (href: string, exact = false) => {
+    if (href === '/') {
+      // Home is active only if no special filters are applied
+      return pathname === '/' &&
+        !searchParams.get('label') &&
+        !searchParams.get('archived') &&
+        !searchParams.get('trashed')
+    }
+
+    // For labels
+    if (href.startsWith('/?label=')) {
+      const labelParam = searchParams.get('label')
+      // Extract label from href
+      const labelFromHref = href.split('=')[1]
+      return labelParam === labelFromHref
+    }
+
+    // For other routes
+    return pathname === href
+  }
+
+  const NavItem = ({ href, icon: Icon, label, active }: any) => (
+    <Link
+      href={href}
+      className={cn(
+        "flex items-center gap-4 px-6 py-3 rounded-r-full mr-2 transition-colors",
+        "text-sm font-medium tracking-wide",
+        active
+          ? "bg-primary/10 text-primary dark:bg-primary/20 dark:text-primary-foreground"
+          : "text-muted-foreground hover:bg-muted/50 dark:hover:bg-muted/30"
+      )}
+    >
+      <Icon className={cn("w-5 h-5", active ? "fill-current" : "")} />
+      <span className="truncate">{label}</span>
+    </Link>
+  )
+
+  return (
+    <aside className={cn(
+      "w-[280px] flex-none flex-col bg-white dark:bg-[#1e2128] overflow-y-auto hidden md:flex py-2",
+      className
+    )}>
+      {/* Main Navigation */}
+      <div className="flex flex-col">
+        <NavItem
+          href="/"
+          icon={Lightbulb}
+          label={t('sidebar.notes') || 'Notes'}
+          active={isActive('/')}
+        />
+        <NavItem
+          href="/reminders"
+          icon={Bell}
+          label={t('sidebar.reminders') || 'Rappels'}
+          active={isActive('/reminders')}
+        />
+      </div>
+
+      {/* Notebooks Section */}
+      <div className="flex flex-col mt-2">
+        <NotebooksList />
+      </div>
+
+
+
+      {/* Archive & Trash */}
+      <div className="flex flex-col mt-2 border-t border-transparent">
+        <NavItem
+          href="/archive"
+          icon={Archive}
+          label={t('sidebar.archive') || 'Archives'}
+          active={pathname === '/archive'}
+        />
+        <NavItem
+          href="/trash"
+          icon={Trash2}
+          label={t('sidebar.trash') || 'Corbeille'}
+          active={pathname === '/trash'}
+        />
+      </div>
+
+      {/* Footer / Copyright / Terms */}
+      <div className="mt-auto px-6 py-4 text-[10px] text-gray-400">
+        <div className="flex gap-2 mb-1">
+          <Link href="#" className="hover:underline">{t('footer.privacy')}</Link>
+          <span>•</span>
+          <Link href="#" className="hover:underline">{t('footer.terms')}</Link>
+        </div>
+        <p>{t('footer.openSource')}</p>
+      </div>
+    </aside>
+  )
+}