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/editor-images.tsx

@@ -0,0 +1,33 @@
+import { Button } from "@/components/ui/button"
+import { X } from "lucide-react"
+
+interface EditorImagesProps {
+  images: string[]
+  onRemove: (index: number) => void
+}
+
+export function EditorImages({ images, onRemove }: EditorImagesProps) {
+  if (!images || images.length === 0) return null
+
+  return (
+    <div className="flex flex-col gap-3 mb-4">
+      {images.map((img, idx) => (
+        <div key={idx} className="relative group">
+          <img 
+            src={img} 
+            alt="" 
+            className="h-auto rounded-lg"
+          />
+          <Button
+            variant="ghost"
+            size="sm"
+            className="absolute top-2 right-2 h-7 w-7 p-0 bg-white/90 hover:bg-white opacity-0 group-hover:opacity-100 transition-opacity"
+            onClick={() => onRemove(idx)}
+          >
+            <X className="h-4 w-4" />
+          </Button>
+        </div>
+      ))}
+    </div>
+  )
+}