- Add dashboard/store.py: MessageLog dataclass singleton tracking
user/agent/error messages for the lifetime of the server process
- agents.py: write each chat turn to MessageLog; add GET and DELETE
/agents/timmy/history routes returning the history.html partial
- partials/history.html: render stored messages by role (YOU / TIMMY /
SYSTEM); falls back to the Mission Control init message when empty
- index.html: chat-log loads history via hx-get on page start; new
CLEAR button in panel header sends hx-delete to reset the log
- style.css: add .mc-btn-clear (muted, red-on-hover for the header)
- tests: autouse reset_message_log fixture in conftest; 5 new history
tests covering empty state, recording, offline errors, clear, and
post-clear state → 32 tests total, all passing
https://claude.ai/code/session_01KZMfwBpLuiv6x9GbzTqbys