Fix date selector loading stale week — pass new dates directly to loadAll

`loadAll` captured `weekStart` in a stale closure when called via
`setTimeout`. Selecting a date would show the correct value in the input
but load data for the previously-shown week. Replaced all deferred
`setTimeout(() => loadAll(true), 0)` calls with direct `loadAll(true, newDate)`
calls, passing the updated date as an explicit argument.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/dist/registerSW.js

@@ -0,0 +1 @@
+if('serviceWorker' in navigator) {window.addEventListener('load', () => {navigator.serviceWorker.register('/hk-planner/sw.js', { scope: '/hk-planner/' })})}