fix: restore pointer-events on ListeningMode and ChapterPickerOverlay

The wrapper div in +layout.svelte had pointer-events:none which blocked
all taps inside ListeningMode (chapter rows, buttons, scrolling). Removed
the wrapper div and moved the fly transition onto ListeningMode's own root
element so the slide-in animation works without stealing pointer events.

ui/src/lib/components/ListeningMode.svelte

@@ -2,6 +2,7 @@
 	import { audioStore } from '$lib/audio.svelte';
 	import { cn } from '$lib/utils';
 	import { goto } from '$app/navigation';
+	import { fly } from 'svelte/transition';
 	import type { Voice } from '$lib/types';
 	import ChapterPickerOverlay from '$lib/components/ChapterPickerOverlay.svelte';
 
@@ -229,6 +230,7 @@
 <!-- Full-screen listening mode overlay -->
 <!-- svelte-ignore a11y_no_static_element_interactions -->
 <div
+	transition:fly={{ y: '100%', duration: 320, opacity: 1 }}
 	bind:this={overlayEl}
 	class="fixed inset-0 z-60 flex flex-col overflow-hidden"
 	style="

ui/src/routes/+layout.svelte

@@ -1137,12 +1137,10 @@
 <!-- Listening mode — mounted at root level, independent of audioStore.active,
      so closing/pausing audio never tears it down and loses context. -->
 {#if listeningModeOpen}
-	<div transition:fly={{ y: '100%', duration: 320, opacity: 1 }} style="pointer-events: none;">
-		<ListeningMode
-			onclose={() => { listeningModeOpen = false; listeningModeChapters = false; }}
-			openChapters={listeningModeChapters}
-		/>
-	</div>
+	<ListeningMode
+		onclose={() => { listeningModeOpen = false; listeningModeChapters = false; }}
+		openChapters={listeningModeChapters}
+	/>
 {/if}
 
 <!-- Universal search modal — shown from anywhere except focus mode / listening mode -->