@post — echo server round-trip
Server reads $q signal, patches #echo-result fragment + updates $echoResult signal.
@get + debounce — search-as-you-type
Results appear here…
data-indicator — loading state
data-indicator:myLoadingAdds this attribute to an element that triggers fetch. Sets signal $myLoading=true while the SSE stream is open, false after.
Also sets aria-busy and data-loading on the element. Use in CSS or with data-show to render a spinner.