fix(vats): don't give all of bankManager to 1 account #9354
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refs: #9342, #9193
stacked on
Description
Provide localchain accounts only with the
bank
for the relevant address, rather than giving them access to all accounts in the form of thebankManager
.earlier discussion: https://github.com/Agoric/agoric-sdk/pull/9342/files#r1594791187
Security Considerations
bankManager was excess authority
Scaling / Documentation / Testing Considerations
Nothing significant: no scaling changes; existing docs/tests suffice.
Upgrade Considerations
code is not released / deployed