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/ui/label.tsx

@@ -0,0 +1,16 @@
+import * as React from "react"
+import { cn } from "@/lib/utils"
+
+export interface LabelProps extends React.LabelHTMLAttributes<HTMLLabelElement> {}
+
+export function Label({ className, ...props }: LabelProps) {
+  return (
+    <label
+      className={cn(
+        "text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70",
+        className
+      )}
+      {...props}
+    />
+  )
+}