feat(seo): per-route html lang, QAPage/Breadcrumb/Event/WebSite schemas, sitemap lastmod

Set <html lang> from URL prefix via handle hook (was hardcoded "en" despite mostly German content). Add Person + WebSite + SearchAction graph to root layout — enables Google sitelinks search box and clusters identity across git.bocken.org and github.com/AlexBocken via sameAs. Build apologetikJsonLd.ts: contra args now emit QAPage with one suggestedAnswer per voiced archetype, citations as CreativeWork. Build breadcrumbJsonLd.ts and wire BreadcrumbList into recipe detail, contra args, prayer detail, and calendar day. Calendar day also emits Event schema. Sitemap now reads recipes directly from MongoDB to populate <lastmod> from dateModified; static URLs use server-startup ISO date. English recipe URLs only emitted when translation status is approved.
2026-05-02 21:48:05 +02:00
parent 7e33ea833e
commit ecbd24d7a4
13 changed files with 268 additions and 24 deletions
@@ -7,6 +7,24 @@ import { dbConnect } from "./utils/db"
 import { errorWithVerse, getRandomVerse } from "$lib/server/errorQuote"
 import { warmLiturgicalCache } from "$lib/server/liturgicalCalendar"

+/** Map URL path to BCP 47 lang tag. Mirrors the [recipeLang] / [faithLang]
+ *  param matchers — keep in sync if new locale slugs are added.
+ *  @returns 'de' | 'en' | 'la'
+ */
+function langFromPath(pathname: string): 'de' | 'en' | 'la' {
+	const first = pathname.split('/').filter(Boolean)[0] ?? '';
+	if (first === 'recipes' || first === 'faith') return 'en';
+	if (first === 'fides') return 'la';
+	return 'de';
+}
+
+async function htmlLang({ event, resolve }: Parameters<Handle>[0]) {
+	const lang = langFromPath(event.url.pathname);
+	return resolve(event, {
+		transformPageChunk: ({ html }) => html.replace('%lang%', lang),
+	});
+}
+
 async function timing({ event, resolve }: Parameters<Handle>[0]) {
 	const marks: Record<string, number> = {};
 	event.locals.timing = {
@@ -143,6 +161,7 @@ export const handleError: HandleServerError = async ({ error, event, status, mes

 export const handle: Handle = sequence(
 	timing,
+	htmlLang,
 	auth.handle,
 	authorization
 );