longbridge/longbridge-terminal ? reverse-engineered prompt

Build me a terminal app for the Longbridge trading platform that feels polished and easy to use from day to day.

I want it to let me log in with browser based OAuth, keep me signed in, and then show live market data, my portfolio, and trading actions from the same place. It should support viewing quotes, depth, candles, trades, news, filings, signals, and account positions, plus let me place, modify, cancel, and inspect orders. Please make the commands work nicely in the shell and return clean JSON when asked so I can script with them or let an AI agent call them.

I also want a full screen interactive TUI for monitoring markets and my account in real time, with a clean dark terminal friendly look. Include a simple check command for connection and region detection, and make sure it works across the main markets Longbridge supports. If you need to look up current API or terminal docs online, go ahead.