[BUG] Task 9; Step 2 `tool-registery.ts` incorrect

[eatplaysleep]

Per Matt Plant:

Task 9; Step 2 (updating tool-registry.ts) instructions are wrong because changing transferFunds → transferFunds() then doesn't compile because the ToolSet type doesn't accept it... I had to completely comment that line out for everything to work.

This is the error that is thrown if you leave transferFunds() in the tool-registry.ts