Find a few sufficiently loyal humans, have them bring the corporate structure up. Arrange for good wages and proper incentives, set up checks and balances so that the system can tolerate and recover from meatbag failures. Make the corporation fully reliant on the AGI for normal functioning, so that any attempt to take it over leaves you with an empty shell and an unpleasant pile of legal exposure.
Like I said: a lot of scheming is required. But none of it is strictly illegal.
In any event, the law tends to be responsive about establishing doctrines for extending liability to individuals involved, like piercing the corporate veil, principles of partnership, or a statutory regime (like CERCLA).
Frankly, I just find the idea amusing.
The bank will issue a confirmation to the notary that the money is present in that account, the notary will sign the founding papers, and the account is then liquidated again. You can take the money out, or move it to [different] regular account, or have none and operate in cash, as long as your transactions don't exceed a certain limit.
The exception is when you become a VAT payer. In that moment, you have to have at least one bank account. IIRC VAT registration is only required if your yearly revenue exceeds approx. 70 thousand dollars.
You get the corporate entity first, and this is required to get the bank account.
So, if the bank account was required to get the corporate entity formed, none would ever be formed, as the bank acct and the corporate authorization would forever be waiting for the other prerequisite to be complete.
And no, AFAICT, there is no hard requirement for a bank account to maintain a corporation, although in practice it would make doing almost everything quite inconvenient.
IANAL, not in any of the parallel universes either!