fix(i18n): eliminate portuguese text leaks across english routes

- Localize skip-to-content accessibility link and breadcrumb navigation
- Convert section layouts to dynamic generateMetadata with English titles, descriptions, and structured data
- Eliminate mixed language expressions and translate remaining SoC connection pin warnings and descriptions
- Translate component registry items, categories, tags, and IDF Component Manager guide
- Add strict identical string verification to scripts/check-i18n.mjs with technical allowlist

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

app/[locale]/layout.jsx

@@ -175,7 +175,7 @@ export default async function RootLayout({ children, params }) {
 				    Google montar o box de busca interna e entender a autoria. */}
 				<script
 					type="application/ld+json"
-					dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd.siteESociedade()) }}
+					dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd.siteESociedade(locale)) }}
 				/>
 			</head>
 			<body className="font-sans antialiased bg-canvas text-ink overflow-x-clip" suppressHydrationWarning>
@@ -183,7 +183,7 @@ export default async function RootLayout({ children, params }) {
 					href="#conteudo"
 					className="sr-only focus:not-sr-only focus:fixed focus:left-4 focus:top-4 focus:z-[200] focus:rounded-full focus:bg-ink focus:px-5 focus:py-3 focus:text-sm focus:font-semibold focus:text-canvas"
 				>
-					Pular para o conteúdo
+					{messages?.Common?.skipToContent || "Pular para o conteúdo"}
 				</a>
 				<NextIntlClientProvider locale={locale} messages={messages}>
 					<Providers>