secrets-config CLI rough edges in EdgeX 3.0

secrets-config CLI rough edges in EdgeX 3.0: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). I'm bringing up EdgeX 3.0 and using secrets-config proxy to add an API gateway user and install a TLS certificate. A few things made this harder than it should be.