chore: clean up repo for public release

- Remove BMAD framework, IDE configs, dev screenshots, test files,
  internal docs, and backup files
- Rename keep-notes/ to memento-note/
- Update all references from keep-notes to memento-note
- Add Apache 2.0 license with Commons Clause (non-commercial restriction)
- Add clean .gitignore and .env.docker.example

memento-note/components/notebook-actions.tsx

@@ -0,0 +1,54 @@
+'use client'
+
+import { Edit2, MoreVertical, FileText } from 'lucide-react'
+import { Button } from '@/components/ui/button'
+import { useLanguage } from '@/lib/i18n'
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from '@/components/ui/dropdown-menu'
+import { Notebook } from '@/lib/types'
+
+interface NotebookActionsProps {
+  notebook: Notebook
+  onEdit: () => void
+  onDelete: () => void
+  onSummary?: () => void
+}
+
+export function NotebookActions({ notebook, onEdit, onDelete, onSummary }: NotebookActionsProps) {
+  const { t } = useLanguage()
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <Button
+          variant="ghost"
+          size="sm"
+          className="h-8 w-8 p-0"
+        >
+          <MoreVertical className="h-3 w-3" />
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent align="end">
+        {onSummary && (
+          <DropdownMenuItem onClick={onSummary}>
+            <FileText className="h-4 w-4 mr-2" />
+            {t('notebook.summary')}
+          </DropdownMenuItem>
+        )}
+        <DropdownMenuItem onClick={onEdit}>
+          <Edit2 className="h-4 w-4 mr-2" />
+          {t('notebook.edit')}
+        </DropdownMenuItem>
+        <DropdownMenuItem
+          onClick={onDelete}
+          className="text-red-600"
+        >
+          {t('notebook.delete')}
+        </DropdownMenuItem>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  )
+}