Three tokens describe the drying cycle these boards run after cooling, and the
switch only covered the first. AutocleanProgress_ is how far a running cycle
has got, and StopAutoClean_ is a channel for ending one early -- its presence
is what says the appliance accepts that at all, which is how the appliance's
own app gates its stop button. Both tokens are reported by the ARTIK051_KRAC_18K
that issue #136 was about, and by every KRAC fixture here.
The percentage scale is the app's own: it renders the token into a
`<progress max="100">` with a "{{value}}%" label beside it. An idle unit reports
1 rather than 0 -- the same floor the laundry firmware's progressPercentage sits
at when Ready -- so 0-vs-1 is not a reliable "is it running" test, and the
button is deliberately not gated on it.
The sensor shares AUTO_CLEAN's catalog entry the way auto_clean_legacy already
shares the switch's: same figure, different board generation, distinct key so
nothing collides if a board ever reported both.
Stacked on #289 (this branch is cut from it) -- rebase or merge that first.
perseus177
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