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/providers-wrapper.tsx

@@ -0,0 +1,29 @@
+'use client'
+
+import { LanguageProvider } from '@/lib/i18n/LanguageProvider'
+import { LabelProvider } from '@/context/LabelContext'
+import { NotebooksProvider } from '@/context/notebooks-context'
+import { NotebookDragProvider } from '@/context/notebook-drag-context'
+import { NoteRefreshProvider } from '@/context/NoteRefreshContext'
+import type { ReactNode } from 'react'
+
+interface ProvidersWrapperProps {
+  children: ReactNode
+  initialLanguage?: string
+}
+
+export function ProvidersWrapper({ children, initialLanguage = 'en' }: ProvidersWrapperProps) {
+  return (
+    <NoteRefreshProvider>
+      <LabelProvider>
+        <NotebooksProvider>
+          <NotebookDragProvider>
+            <LanguageProvider initialLanguage={initialLanguage as any}>
+              {children}
+            </LanguageProvider>
+          </NotebookDragProvider>
+        </NotebooksProvider>
+      </LabelProvider>
+    </NoteRefreshProvider>
+  )
+}