fix(launcher): clear ae_loc in cache cleanup; align tech help Clear & Reload

menu_launcher_controls: handle_cache_cleanup now removes both ae_events_loc
and ae_loc from localStorage, giving a true clean slate on reload.

e_app_help_tech: Clear & Reload button no longer silently re-saves ae_loc
after clearing — if edit mode wipes localStorage, ae_loc goes with it.
Updated confirm message and title tooltip to say "you will be signed out"
instead of the previous misleading "sign-in will be preserved."

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

src/routes/events/[event_id]/(launcher)/menu_launcher_controls.svelte

@@ -85,6 +85,7 @@ async function handle_cache_cleanup() {
     cache_status = 'Clearing...';
     try {
         localStorage.removeItem('ae_events_loc');
+        localStorage.removeItem('ae_loc');
         indexedDB.deleteDatabase('ae_events_db');
         cache_status = 'Done — reloading...';
         setTimeout(() => window.location.reload(), 800);