UiButton gains pressedClass, Core's class on a pressed button. The pressed
classes toggle through classList, so classes other code adds survive a
press, a caller's class change keeps them, a renamed pressedClass leaves
the button, and server-rendered markup carries them.
The Display, SDR, Radio and Cockpit enable, Cockpit weather and briefing,
mission replay, Street Level, TR-3B, overlay, voice and CCTV toggles now
render through it with the same ids, classes and aria-pressed values.
UiSlider takes v-model, min, max, step and disabled
over Core's native range input, emits numbers, and with `hold` never
rewrites a focused handle and takes the model back on blur. It is a
functional render function, so the portable style parameter rows use it
too. The Display, Radio, RTL-SDR, Cockpit, mission replay and style
parameter sliders render with it; server-rendered markup keeps their
default values.
SdrCard calls LocalSdrControls through radio store actions instead of
DOM listeners, and renders its gain options from the receiver's own
R820T gain steps with page-language labels. The display and radio
stores share one owner list (createOwners): the newest connected owner
with an action answers it.
LocalSdrControls publishes the card to the radio store and SdrCard renders it. The new v-field-value directive never overwrites a focused field, including one a render disables.