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>

components/ConnectionsDiagram.jsx

@@ -288,7 +288,7 @@ function ConnectionsDiagramInner({ connections, serie }) {
 									type="button"
 									onClick={(e) => abrir(connection, e)}
 									aria-haspopup="dialog"
-									aria-label={`Pino ${connection.nome}, número ${connection.numero}${connection.avisos ? ", com restrições de uso" : ""}`}
+									aria-label={isEn ? `Pin ${connection.nome}, number ${connection.numero}${connection.avisos ? ", with usage restrictions" : ""}` : `Pino ${connection.nome}, número ${connection.numero}${connection.avisos ? ", com restrições de uso" : ""}`}
 									className="flex w-full flex-col items-center rounded-xl border border-line bg-surface p-3 transition-colors hover:bg-surface-2"
 								>
 									<span