[FA-misc] Chapter reader is now serverside loaded with a clientside fallback, fixed a warning related to reading lists

fictionarchive-web-astro/src/lib/components/AddToReadingListButton.svelte

@@ -33,10 +33,10 @@
 	let error: string | null = $state(null);
 
 	// Track which lists the novel is in (by list ID)
-	let novelInLists = new SvelteSet<number>();
+	let novelInLists = $state(new SvelteSet<number>());
 
 	// Track loading state for individual list toggles
-	let loadingListIds = new SvelteSet<number>();
+	let loadingListIds = $state(new SvelteSet<number>());
 
 	// Quick-create state
 	let showQuickCreate = $state(false);

fictionarchive-web-astro/src/lib/components/ChapterReaderPage.svelte

@@ -19,14 +19,24 @@
 		novelId?: string;
 		volumeOrder?: string;
 		chapterNumber?: string;
+		initialChapter?: ChapterData | null;
+		initialAuthFailed?: boolean;
+		initialError?: string | null;
 	}
 
-	let { novelId, volumeOrder, chapterNumber }: Props = $props();
+	let {
+		novelId,
+		volumeOrder,
+		chapterNumber,
+		initialChapter = null,
+		initialAuthFailed = false,
+		initialError = null
+	}: Props = $props();
 
-	// State
-	let chapter: ChapterData | null = $state(null);
-	let fetching = $state(true);
-	let error: string | null = $state(null);
+	// State - initialize from server data if available
+	let chapter: ChapterData | null = $state(initialChapter);
+	let fetching = $state(!initialChapter && !initialError && !initialAuthFailed);
+	let error: string | null = $state(initialError);
 	let scrollProgress = $state(0);
 
 	// Bookmark state
@@ -123,8 +133,15 @@
 		bookmarkDescription = newDescription ?? null;
 	}
 
-	onMount(() => {
-		fetchChapter();
+	onMount(async () => {
+		if (initialAuthFailed || (!initialChapter && !initialError)) {
+			// Fetch client-side: either auth recovery or fallback
+			await fetchChapter();
+		} else if (chapter) {
+			// Server provided data, just fetch bookmarks
+			await fetchBookmarks();
+		}
+
 		window.addEventListener('scroll', handleScroll, { passive: true });
 		window.addEventListener('keydown', handleKeydown);
 	});