TIMMY_STATUS_PROMPT was defined in timmy/prompts.py and covered by
tests, but never wired into the application. The CLI status command
was passing a hardcoded inline string instead. Replace the inline
string with the canonical prompt and add two CLI tests that verify
the correct prompt is used.
https://claude.ai/code/session_01DMjQ5qMZ8iHeyix1j3GS7c