* Filter changes from the parent (page-state singleton swap) now trigger
LoadAsync via OnParametersSetAsync once the component has rendered.
Previously the reload happened only on first render, so navigating back
to a list page with a different sport/date filter showed the prior data.
* Refresh-timer Elapsed handler is hoisted to a named async-void method
with try/catch around InvokeAsync. An unhandled exception on the timer
thread used to crash WebView2; now it's logged and swallowed.
* Overlapping ticks are skipped via a _loading short-circuit so a slow
Loader doesn't stack up cancelled-superseded loads.
alexei.dolgolyov
d1e6ce7ce2