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]/seletor/layout.jsx

@@ -1,13 +1,22 @@
 import { paginaMeta, jsonLd } from "@/lib/seo";
 
-export const metadata = paginaMeta({
-	titulo: "Qual ESP32 escolher",
-	descricao: "Responda a perguntas simples sobre conectividade (Wi-Fi 6, 5GHz, Matter), energia, periféricos e segurança ou use o filtro paramétrico para encontrar o ESP32 perfeito.",
-	caminho: "/seletor",
-	keywords: ["qual ESP32 escolher", "qual ESP32 usar", "escolher microcontrolador", "ESP32 para meu projeto", "comparar ESP32"],
-});
+export async function generateMetadata({ params }) {
+	const { locale } = await params;
+	const isEn = locale === "en";
+	return paginaMeta({
+		titulo: isEn ? "Which ESP32 to Choose" : "Qual ESP32 escolher",
+		descricao: isEn
+			? "Answer simple questions about connectivity (Wi-Fi 6, 5GHz, Matter), power, peripherals, and security or use the parametric filter to find the perfect ESP32."
+			: "Responda a perguntas simples sobre conectividade (Wi-Fi 6, 5GHz, Matter), energia, periféricos e segurança ou use o filtro paramétrico para encontrar o ESP32 perfeito.",
+		caminho: "/seletor",
+		locale,
+		keywords: isEn
+			? ["which ESP32 to choose", "which ESP32 to use", "choose microcontroller", "ESP32 for my project", "compare ESP32"]
+			: ["qual ESP32 escolher", "qual ESP32 usar", "escolher microcontrolador", "ESP32 para meu projeto", "comparar ESP32"],
+	});
+}
 
-const faqs = [
+const faqsPt = [
 	{
 		pergunta: "Qual ESP32 escolher para iniciantes?",
 		resposta: "Para quem está começando no mundo Maker e IoT, o ESP32 clássico (NodeMCU/DevKitC) ou o ESP32-C3 são as melhores opções devido à vasta quantidade de bibliotecas, exemplos prontos no Arduino IDE e farta documentação em português.",
@@ -26,7 +35,30 @@ const faqs = [
 	},
 ];
 
-export default function Layout({ children }) {
+const faqsEn = [
+	{
+		pergunta: "Which ESP32 to choose for beginners?",
+		resposta: "For makers and developers starting out in IoT, the classic ESP32 (NodeMCU/DevKitC) or ESP32-C3 are top choices thanks to extensive library support, readily available Arduino IDE examples, and thorough documentation.",
+	},
+	{
+		pergunta: "Which ESP32 supports Wi-Fi 6, Bluetooth 6 and Thread/Zigbee/Matter?",
+		resposta: "The ESP32-C6 and ESP32-C5 are the leading series for modern networking. The ESP32-C6 offers 2.4 GHz Wi-Fi 6 and 802.15.4 radio (Zigbee 3.0 / Thread / Matter). The ESP32-C5 is the first to introduce Dual-Band Wi-Fi 6 on both 2.4 GHz and 5 GHz bands simultaneously.",
+	},
+	{
+		pergunta: "Which is the most powerful ESP32 for AI (TinyML) and Displays?",
+		resposta: "The ESP32-P4 (dual-core RISC-V at 400 MHz with AI vector extensions, MIPI-CSI/DSI interfaces, and up to 64 MB PSRAM) and ESP32-S3 (dual-core Xtensa at 240 MHz with neural network vector acceleration and RGB LCD support) provide maximum speed for edge AI and rich graphical interfaces.",
+	},
+	{
+		pergunta: "Which ESP32 consumes the least power for battery-operated projects?",
+		resposta: "Compact RISC-V microcontrollers with ULP coprocessors like the ESP32-C2, ESP32-C3, and ESP32-H2 (dedicated 802.15.4 without Wi-Fi) achieve ultra-low deep sleep currents ranging between 5 µA and 10 µA.",
+	},
+];
+
+export default async function Layout({ children, params }) {
+	const { locale } = await params;
+	const isEn = locale === "en";
+	const faqs = isEn ? faqsEn : faqsPt;
+
 	return (
 		<>
 			<script
@@ -34,9 +66,12 @@ export default function Layout({ children }) {
 				dangerouslySetInnerHTML={{
 					__html: JSON.stringify(
 						jsonLd.aplicacaoWeb({
-							nome: "Seletor Inteligente de ESP32",
-							descricao: "Ferramenta interativa que analisa conectividade, consumo, periféricos e segurança para indicar a série ideal de ESP32.",
-							caminho: "/seletor",
+							nome: isEn ? "Intelligent ESP32 Selector" : "Seletor Inteligente de ESP32",
+							descricao: isEn
+								? "Interactive tool analyzing connectivity, power consumption, peripherals, and security to recommend the ideal ESP32 series."
+								: "Ferramenta interativa que analisa conectividade, consumo, periféricos e segurança para indicar a série ideal de ESP32.",
+							caminho: isEn ? "/en/selector" : "/seletor",
+							locale,
 						})
 					),
 				}}
@@ -46,8 +81,8 @@ export default function Layout({ children }) {
 				dangerouslySetInnerHTML={{
 					__html: JSON.stringify(
 						jsonLd.trilha([
-							{ nome: "Início", caminho: "/" },
-							{ nome: "Seletor de ESP32", caminho: "/seletor" },
+							{ nome: isEn ? "Home" : "Início", caminho: isEn ? "/en" : "/" },
+							{ nome: isEn ? "ESP32 Selector" : "Seletor de ESP32", caminho: isEn ? "/en/selector" : "/seletor" },
 						])
 					),
 				}}