feat(i18n): add Paraglide i18n with 5 locales (v2.3.22)

- Install @inlang/paraglide-js v2.15.1; configure project.inlang settings
- Add en/ru/id/pt-BR/fr message catalogues (~140 keys each)
- Wire paraglideVitePlugin in vite.config.ts, reroute hook in hooks.ts,
  and paraglideHandle middleware in hooks.server.ts
- Migrate all routes and shared components to use m.*() message calls
- Fix duplicate onMount body in chapters/[n]/+page.svelte
- Build passes; svelte-check: 0 errors, 3 pre-existing warnings

ui/src/routes/admin/scrape/+page.svelte

@@ -3,6 +3,7 @@
 	import { invalidateAll } from '$app/navigation';
 	import type { PageData } from './$types';
 	import type { ScrapingTask } from '$lib/server/pocketbase';
+	import * as m from '$lib/paraglide/messages.js';
 
 	let { data }: { data: PageData } = $props();
 
@@ -228,15 +229,15 @@
 </script>
 
 <svelte:head>
-	<title>Scrape tasks — libnovel admin</title>
+	<title>{m.admin_scrape_page_title()}</title>
 </svelte:head>
 
 <div class="space-y-6">
 	<!-- Header -->
 	<div class="flex items-center gap-3 flex-wrap">
-		<h1 class="text-xl font-semibold text-(--color-text) flex-1">Scrape</h1>
+		<h1 class="text-xl font-semibold text-(--color-text) flex-1">{m.admin_scrape_heading()}</h1>
 		<span class="text-xs {running ? 'text-(--color-brand) animate-pulse' : 'text-green-500'}">
-			● {running ? 'Running' : 'Idle'}
+			● {running ? m.admin_scrape_status_running() : m.admin_scrape_status_idle()}
 		</span>
 	</div>
 
@@ -244,20 +245,20 @@
 	<div class="divide-y divide-(--color-border) border border-(--color-border) rounded-xl overflow-hidden">
 		<!-- Full catalogue -->
 		<div class="flex items-center gap-4 px-4 py-3 bg-(--color-surface)">
-			<span class="text-sm text-(--color-muted) w-36 shrink-0">Full catalogue</span>
+			<span class="text-sm text-(--color-muted) w-36 shrink-0">{m.admin_scrape_full_catalogue()}</span>
 			<button
 				onclick={triggerCatalogueScrape}
 				disabled={running || cataloguing}
 				class="px-3 py-1.5 rounded-md bg-(--color-brand) text-(--color-surface) font-semibold text-xs hover:bg-(--color-brand-dim) transition-colors disabled:opacity-50"
 			>
-				{cataloguing ? 'Queuing…' : running ? 'Running…' : 'Start scrape'}
+				{cataloguing ? m.admin_scrape_queuing() : running ? m.admin_scrape_running() : m.admin_scrape_start()}
 			</button>
 			{#if catalogueError}<span class="text-xs text-(--color-danger)">{catalogueError}</span>{/if}
 		</div>
 
 		<!-- Single book -->
 		<div id="book-form" class="flex items-center gap-3 px-4 py-3 bg-(--color-surface)">
-			<span class="text-sm text-(--color-muted) w-36 shrink-0">Single book</span>
+			<span class="text-sm text-(--color-muted) w-36 shrink-0">{m.admin_scrape_single_book()}</span>
 			<input
 				type="url"
 				bind:value={scrapeUrl}
@@ -269,14 +270,14 @@
 				disabled={!scrapeUrl.trim() || running || scraping}
 				class="shrink-0 px-3 py-1.5 rounded-md bg-(--color-surface-3) text-(--color-text) font-medium text-xs hover:bg-zinc-600 transition-colors disabled:opacity-50"
 			>
-				{scraping ? 'Queuing…' : 'Scrape'}
+				{scraping ? m.admin_scrape_queuing() : m.admin_scrape_submit()}
 			</button>
 			{#if scrapeError}<span class="text-xs text-(--color-danger)">{scrapeError}</span>{/if}
 		</div>
 
 		<!-- Range scrape -->
 		<div id="range-form" class="flex items-center gap-3 px-4 py-3 bg-(--color-surface) flex-wrap">
-			<span class="text-sm text-(--color-muted) w-36 shrink-0">Chapter range</span>
+			<span class="text-sm text-(--color-muted) w-36 shrink-0">{m.admin_scrape_range()}</span>
 			<input
 				type="url"
 				bind:value={rangeUrl}
@@ -302,14 +303,14 @@
 				disabled={!rangeUrl.trim() || rangeFrom === null || running || ranging}
 				class="shrink-0 px-3 py-1.5 rounded-md bg-(--color-surface-3) text-(--color-text) font-medium text-xs hover:bg-zinc-600 transition-colors disabled:opacity-50"
 			>
-				{ranging ? 'Queuing…' : 'Go'}
+				{ranging ? m.admin_scrape_queuing() : 'Go'}
 			</button>
 			{#if rangeError}<span class="text-xs text-(--color-danger) w-full pl-40">{rangeError}</span>{/if}
 		</div>
 
 		<!-- Quick genre chips -->
 		<div class="flex items-center gap-3 px-4 py-3 bg-(--color-surface) flex-wrap">
-			<span class="text-sm text-(--color-muted) w-36 shrink-0">Quick genres</span>
+			<span class="text-sm text-(--color-muted) w-36 shrink-0">{m.admin_scrape_quick_genres()}</span>
 			<div class="flex flex-wrap gap-1.5">
 				{#each quickScrapes as qs}
 					<button
@@ -334,18 +335,18 @@
 	<!-- Tasks table -->
 	<div class="space-y-3">
 		<div class="flex items-center gap-3 flex-wrap">
-			<h2 class="text-sm font-semibold text-(--color-muted) flex-1 uppercase tracking-widest">Task history</h2>
+			<h2 class="text-sm font-semibold text-(--color-muted) flex-1 uppercase tracking-widest">{m.admin_scrape_task_history()}</h2>
 			<input
 				type="search"
 				bind:value={q}
-				placeholder="Filter by kind, status or URL…"
+				placeholder={m.admin_scrape_filter_placeholder()}
 				class="w-full max-w-xs bg-(--color-surface-2) border border-(--color-border) rounded-lg px-3 py-2 text-(--color-text) text-sm placeholder-zinc-500 focus:outline-none focus:ring-2 focus:ring-(--color-brand)"
 			/>
 		</div>
 
 		{#if filtered.length === 0}
 			<p class="text-(--color-muted) text-sm py-8 text-center">
-				{q.trim() ? 'No matching tasks.' : 'No scrape tasks yet.'}
+				{q.trim() ? m.admin_scrape_no_matching() : m.admin_tasks_empty()}
 			</p>
 		{:else}
 			<!-- Desktop table -->
@@ -393,7 +394,7 @@
 											disabled={cancellingIds.has(task.id)}
 											class="px-2 py-1 rounded text-xs font-medium bg-(--color-surface-3) text-(--color-text) hover:bg-red-900 hover:text-red-300 transition-colors disabled:opacity-50"
 										>
-											{cancellingIds.has(task.id) ? 'Cancelling…' : 'Cancel'}
+											{cancellingIds.has(task.id) ? 'Cancelling…' : m.admin_scrape_cancel()}
 										</button>
 									{/if}
 									{#if task.kind === 'book_range' && task.status !== 'pending' && task.status !== 'running' && (task.chapters_scraped ?? 0) > 0}
@@ -461,7 +462,7 @@
 								disabled={cancellingIds.has(task.id)}
 								class="flex-1 px-3 py-1.5 rounded-lg text-xs font-medium bg-(--color-surface-3) text-(--color-text) hover:bg-red-900 hover:text-red-300 transition-colors disabled:opacity-50"
 							>
-								{cancellingIds.has(task.id) ? 'Cancelling…' : 'Cancel task'}
+								{cancellingIds.has(task.id) ? 'Cancelling…' : m.admin_scrape_cancel()} task
 							</button>
 						{/if}
 						{#if task.kind === 'book_range' && task.status !== 'pending' && task.status !== 'running' && (task.chapters_scraped ?? 0) > 0}