other than the company accounts which by law have to be, and have been published.
This does seem to be your weakness. Perhaps an example will help:
Carman runs a successful car maintenance business, his accounts show he has £600k net assets. both his gross profit (Margin) 50% and net profit 25% are healthy. His business is profitable. Carman loses a big claim in the high court, for £100M, it wasn't his fault, a supplier let him down. His business has net assets of £600k, he cannot pay the debt, his business is insolvent. Carman risks being personally liable for the debts, if he does not immediately wind the company up. He is duty bound to protect his creditors. Carman does not want to be prosecuted for wrongful trading and immediately takes legal advice and winds the company up.
This is obviously a different Carman to you. This Carman, knows about his legal obligations.