fix(i18n): localize json-ld metadata and eliminate breadcrumb leaks

- Pass currentLocale to jsonLd.serie and jsonLd.framework to ensure English headline, name, and properties
- Localize JSON-LD @id anchors to #article, #about, #glossary, #organization, and #author for English routes
- Pass isEn prop to PageHero across all internal pages to prevent breadcrumbs from defaulting to Portuguese
- Add scripts/verifica-vazamentos.py to smoke-imagem.sh to permanently test all 36 English URLs (visible text and ld+json)

Co-Authored-By: Antigravity <noreply@google.com>

components/PageHero.jsx

@@ -1,20 +1,28 @@
 import Link from "next/link";
-import { useLocale } from "next-intl";
 
 /**
  * Abertura padrão das páginas internas: trilha, rótulo, título, frase de apoio
  * e ações. Mesma voz da /livro e da home, para que nenhuma página pareça
  * de outro produto.
  */
-export default function PageHero({ trail = [], icon: Icon, label, title, lede, align = "left", children }) {
+export default function PageHero({
+	trail = [],
+	icon: Icon,
+	label,
+	title,
+	lede,
+	align = "left",
+	children,
+	isEn: isEnProp,
+	locale: localeProp,
+}) {
 	const center = align === "center";
-	let isEn = false;
-	try {
-		const locale = useLocale();
-		isEn = locale === "en";
-	} catch {
-		// fallback
-	}
+	const isEn =
+		isEnProp !== undefined
+			? isEnProp
+			: localeProp
+			? localeProp === "en"
+			: trail.some((t) => t.isEn || (t.href && t.href.startsWith("/en")));
 
 	return (
 		<section className="shell pt-8 sm:pt-12">