Pure-MoonBit crypto & CTF toolbox (a port of ToolsFx): national crypto SM2/SM3/SM4 (GB/T 32905/32907/32918, byte-for-byte standard vectors), encoding toolkit (Base16/32/58/58Check/62/64/85/91, Punycode, URL, radix, QP, UU/XX), classical ciphers with ciphertext auto-detection, and a single-JSON-dispatch workbench shared by the browser frontend and the moon run demo.