Review finding (quality pass): on a single-profile gateway,
_handle_busy_command set _busy_input_mode but left _busy_text_mode
stale, so the adapter refresh a line later re-read the old value —
/busy queue persisted to config but live text messages kept
interrupting until restart. The profile path already re-derives both
from the fresh config; the non-profile path now does the same via
_load_busy_text_mode() (busy_input_mode is the source of truth,
run.py:9877). Regression assertion added to test_set_mode_persists;
verified red without the production fix.
0d02f0d1dc