devswha/patina ? reverse-engineered prompt

Build me a tool called patina that takes AI sounding text and rewrites it so it reads more naturally, but keeps the real meaning, numbers, polarity, and cause and effect intact.

I want it to work for Korean, English, Chinese, and Japanese, with a simple command line flow and a browser playground too. It should let me paste in text, choose a language, and optionally set the document type, persona, and register so the voice can stay consistent. If I do not set those, it should preserve the original voice as much as possible.

Please make it transparent and reliable, so I can see what changed, run audit and diff style checks, and verify that the rewrite still matches the original meaning closely enough. If a rewrite drifts too far, it should retry or refuse it instead of returning a bad result.

Use the existing docs if they help, and look up current docs online if you need to.