fix: restore fly transition on Toast, clean up debug logs

Add fly transition back to Toast component and move cleanup from
onDestroy to onMount return for SSR safety. Remove debug console.logs
from page orchestrator.

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

opal-web/src/lib/components/Toast.svelte

@@ -1,5 +1,5 @@
 <script>
-	import { onMount, onDestroy } from 'svelte';
+	import { onMount } from 'svelte';
 	import { fly } from 'svelte/transition';
 
 	/** @type {string} */
@@ -40,14 +40,11 @@
 
 	onMount(() => {
 		startTimer();
-	});
-
-	onDestroy(() => {
-		clearTimer();
+		return () => clearTimer();
 	});
 </script>
 
-<div class="toast" transition:fly={{ y: 20, duration: 200 }}>
+<div class="toast" transition:fly={{ y: 50, duration: 200 }}>
 	<span class="toast-message">{message}</span>
 	{#if action}
 		<button class="toast-action" on:click={handleAction} type="button">

opal-web/src/routes/+page.svelte

@@ -148,7 +148,6 @@
 
 		try {
 			await tasksStore.complete(uuid);
-			// Show undo toast
 			undoToast = { uuid: task.uuid, description: task.description };
 		} catch (error) {
 			console.error('Failed to complete task:', error);