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/delete-notebook-dialog.tsx

@@ -0,0 +1,55 @@
+'use client'
+
+import { Button } from '@/components/ui/button'
+import { useLanguage } from '@/lib/i18n'
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog'
+import { useNotebooks } from '@/context/notebooks-context'
+
+interface DeleteNotebookDialogProps {
+  notebook: any
+  open: boolean
+  onOpenChange: (open: boolean) => void
+}
+
+export function DeleteNotebookDialog({ notebook, open, onOpenChange }: DeleteNotebookDialogProps) {
+  const { deleteNotebook } = useNotebooks()
+  const { t } = useLanguage()
+
+  const handleDelete = async () => {
+    try {
+      await deleteNotebook(notebook.id)
+      onOpenChange(false)
+      window.location.reload()
+    } catch (error) {
+      // Error already handled in UI
+    }
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent>
+        <DialogHeader>
+          <DialogTitle>{t('notebook.delete')}</DialogTitle>
+          <DialogDescription>
+            {t('notebook.deleteWarning', { notebookName: notebook?.name })}
+          </DialogDescription>
+        </DialogHeader>
+        <DialogFooter>
+          <Button variant="outline" onClick={() => onOpenChange(false)}>
+            {t('general.cancel')}
+          </Button>
+          <Button variant="destructive" onClick={handleDelete}>
+            {t('notebook.deleteConfirm')}
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  )
+}