feat(i18n): zh-CN examples log in English, matching the serial-monitor convention

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

public/exemplos/zh-CN/esp-dsp.c

@@ -12,7 +12,7 @@ void app_main(void)
     // 初始化 ESP-DSP
     esp_err_t ret = dsps_fft2r_init_fc32(NULL, CONFIG_DSP_MAX_FFT_SIZE);
     if (ret != ESP_OK) {
-        printf("Erro ao inicializar o ESP-DSP!\n");
+        printf("Failed to initialize ESP-DSP!\n");
         return;
     }