Addresses the reuse finding skipped in the previous /simplify pass:
washer's bubble soak/pre-wash/intensive switches and dishwasher's storm
wash/auto release dry switches were two separate implementations of the
same '<prefix>_On'/'<prefix>_Off' read-modify-write-on-options[] contract.
Moved bool_option_write/bool_option_value/bool_option_exists/
bool_option_switch into laundry.py (same module that already owns
cycle_write/cycle_select for the identical 'Course' token), and pointed
both washer.py and dishwasher.py at it. washer.py keeps only its
washer-specific per-course validate_fn, passed into the shared factory
as a prebuilt callable -- the factory itself has no opinion on validation.
No behavior change; re-verified every existing assertion (washer toggles,
dishwasher storm_wash/auto_release_dry, dosing alarms) plus all golden
state-key sets by hand against the refactored code.
Marc Billow
9800cd0aa8