Add public/series.json containing detailed ESP32 family specifications

Add a new JSON file public/series.json that defines detailed metadata for multiple
ESP32 series variants. The file includes entries for: ESP32, ESP32-S2, ESP32-S3,
ESP32-C3, ESP32-C5, ESP32-C6, ESP32-P4 and ESP32-H2.

Each entry provides human-friendly and technical fields such as:
- nome_completo, icone, descricao
- arquitetura, nucleos, frequencia, coprocessador_ulp, aceleradores_ia (when applicable)
- wireless capabilities (Wi‑Fi, Bluetooth, Zigbee/Thread, Matter), USB, Ethernet
- memory details (SRAM, RTC SRAM, ROM, external flash/PSRAM)
- peripherals and I/O counts (GPIO, ADC, DAC, touch, UART, SPI, I2C, I2S, PWM, SDIO, etc.)
- sensor info, temperature ranges, datasheet links and UI color values

This file will be used to power device/series lists and UI displays with consistent,
localized technical descriptions and links to datasheets.

components/Footer.jsx

@@ -0,0 +1,35 @@
+"use client";
+
+export default function Footer() {
+    return (
+        <footer className="bg-white py-3 text-black border-t border-gray-300 space-y-2">
+            <div className="text-center leading-5 text-sm md:flex md:justify-between max-w-5xl mx-auto">
+                <div className="m-0 p-0">
+                    © {new Date().getFullYear()}&nbsp;
+                    <a
+                        href="https://cienciaembarcada.com.br"
+                        className="text-blue-700 font-semibold hover:underline"
+                        target="_blank"
+                        rel="noopener noreferrer"
+                    >
+                        Ciência Embarcada
+                    </a>
+                    . Todos os direitos reservados.
+                </div>
+
+                <div className="m-0 p-0">
+                    Desenvolvido por&nbsp;
+                    <a
+                        href="https://linkedin.com/in/lucasrguerra"
+                        className="text-blue-700 font-semibold hover:underline"
+                        target="_blank"
+                        rel="noopener noreferrer"
+                    >
+                        Lucas Rayan Guerra
+                    </a>
+                    .
+                </div>
+            </div>
+        </footer>
+    );
+}