fix(tk): harden private key output and add address format coverage guard#22

figitaki wants to merge 4 commits intonatefikru/eng-3860-consensus-demo-rusttkhq/tk:natefikru/eng-3860-consensus-demo-rustfrom

monad/pr19-zeke-amendmentstkhq/tk:monad/pr19-zeke-amendmentsCopy head branch name to clipboard