Remove only the exact `piker.` prefix before delegating to Tractor's
logger factories; `lstrip()` treated it as a character set and renamed
submodules such as `piker.paper` to `piker.aper`.
Drop stale parent-namespace assertions in service, data, broker and EMS
startup while retaining console setup. Exercise both factories with
service and prefix-sensitive submodule names.
Prompt-IO: ai/prompt-io/opencode/20261019T123725Z_eed58566_logger_compat_prompt_io.md
(this patch was generated in some part by `opencode` using
`gpt-6.1-sol` (`openai`))
Gud Boi