docs: use hardware photo in README

README.en.md

@@ -4,7 +4,7 @@
 
 Arduino firmware and a macOS companion for the Waveshare ESP32-S3-Touch-AMOLED-2.16. The device receives real Codex account usage and task status from the local computer over encrypted BLE. Codex credentials are never stored on the ESP32.
 
-![Main screen design](docs/ui/main-ring-open-arc-corrected-480.png)
+![Codex Usage Display hardware](docs/device-photo.jpg)
 
 > Current status: first usable hardware release. The firmware, BLE companion,
 > global hooks, tests, and PlatformIO build are working end to end. Only the
@@ -42,7 +42,39 @@ With the three physical buttons along the top edge when viewed from the front:
 
 `focus_codex` activates the ChatGPT/Codex app on the Mac. `refresh` immediately reloads the data. `new_task` uses macOS Accessibility to send `⌘N`.
 
-## Arduino IDE
+## Recommended: PlatformIO
+
+PlatformIO is the primary development path for this project. It pins the major
+dependency versions used by the Waveshare Arduino example:
+
+- Arduino-ESP32 3.3.5
+- LVGL 8.4.0
+- Arduino_GFX 1.6.4
+- SensorLib 0.3.3
+- XPowersLib 0.2.6
+
+After installing PlatformIO:
+
+```bash
+pio run
+```
+
+The firmware image is written to:
+
+```text
+.pio/build/esp32-s3-touch-amoled-216/firmware.bin
+```
+
+With the board connected:
+
+```bash
+pio run -t upload
+pio device monitor
+```
+
+If the download port is not detected, hold BOOT while connecting USB-C and release it when the port appears. Uploading replaces the firmware currently installed on the device.
+
+## Arduino IDE (alternative)
 
 Open [esp32/esp32.ino](esp32/esp32.ino) directly. Do not select only the containing folder in the file picker. Arduino IDE will also compile the implementation under `src/`.
 
@@ -183,37 +215,6 @@ The first use of `NEW TASK` also requires Terminal permission under **Privacy &
 
 To move the display to another computer, stop the old companion first. While the device is running normally, hold the left BOOT button for 3 seconds. After `PAIRING CLEARED`, the device restarts. Run `./companion/run.sh` on the new computer and enter the new six-digit pairing code. Do not hold BOOT during power-on or reset, because that enters ESP32 download mode.
 
-## PlatformIO
-
-The PlatformIO project pins the major dependency versions used by the Waveshare Arduino example:
-
-- Arduino-ESP32 3.3.5
-- LVGL 8.4.0
-- Arduino_GFX 1.6.4
-- SensorLib 0.3.3
-- XPowersLib 0.2.6
-
-After installing PlatformIO:
-
-```bash
-pio run
-```
-
-The firmware image is written to:
-
-```text
-.pio/build/esp32-s3-touch-amoled-216/firmware.bin
-```
-
-With the board connected:
-
-```bash
-pio run -t upload
-pio device monitor
-```
-
-If the download port is not detected, hold BOOT while connecting USB-C and release it when the port appears. Uploading replaces the firmware currently installed on the device.
-
 ## Repository structure
 
 ```text

README.md

@@ -4,7 +4,7 @@
 
 Waveshare ESP32-S3-Touch-AMOLED-2.16 的 Arduino 固件和 macOS Companion。设备通过加密 BLE 接收本机 Codex 的真实账户用量和任务状态，不在 ESP32 中保存 Codex 凭据。
 
-![首页设计稿](docs/ui/main-ring-open-arc-corrected-480.png)
+![Codex Usage Display 实机照片](docs/device-photo.jpg)
 
 > 当前状态：首个可用硬件版本。固件、BLE Companion、全局 Hook、测试和
 > PlatformIO 构建均已打通；目前只支持指定的 Waveshare 开发板和 macOS。
@@ -40,7 +40,38 @@ Waveshare ESP32-S3-Touch-AMOLED-2.16 的 Arduino 固件和 macOS Companion。设
 
 `focus_codex` 会激活 Mac 上的 ChatGPT/Codex App；`refresh` 立即重新读取数据；`new_task` 使用 macOS 辅助功能发送 `⌘N`。
 
-## 使用 Arduino IDE
+## 推荐：使用 PlatformIO
+
+项目主要使用 PlatformIO，并固定到与 Waveshare Arduino 示例相同的主要依赖版本：
+
+- Arduino-ESP32 3.3.5
+- LVGL 8.4.0
+- Arduino_GFX 1.6.4
+- SensorLib 0.3.3
+- XPowersLib 0.2.6
+
+安装 PlatformIO 后执行：
+
+```bash
+pio run
+```
+
+固件输出：
+
+```text
+.pio/build/esp32-s3-touch-amoled-216/firmware.bin
+```
+
+连接开发板后烧录并查看串口：
+
+```bash
+pio run -t upload
+pio device monitor
+```
+
+如果首次烧录时没有识别到下载端口，按住 BOOT、连接 USB-C，看到端口后松开 BOOT。烧录会替换设备中现有固件。
+
+## Arduino IDE（兼容方式）
 
 直接打开 [esp32/esp32.ino](esp32/esp32.ino)，不要在文件选择器里只选文件夹。Arduino IDE 会同时编译 `src/` 中的实际源码。
 
@@ -192,37 +223,6 @@ Hook 不保存 prompt 或 assistant 回复。它对本机所有 Codex 项目生
 
 更换电脑时，先停止旧电脑上的 Companion，再在设备正常运行时长按左侧 BOOT 3 秒。看到 `PAIRING CLEARED` 后设备会自动重启；随后在新电脑运行 `./companion/run.sh`，输入设备显示的新六位配对码。不要在开机或复位过程中按住 BOOT，否则会进入 ESP32 下载模式。
 
-## 使用 PlatformIO
-
-项目使用 PlatformIO，并固定到与 Waveshare Arduino 示例相同的主要依赖版本：
-
-- Arduino-ESP32 3.3.5
-- LVGL 8.4.0
-- Arduino_GFX 1.6.4
-- SensorLib 0.3.3
-- XPowersLib 0.2.6
-
-安装 PlatformIO 后执行：
-
-```bash
-pio run
-```
-
-固件输出：
-
-```text
-.pio/build/esp32-s3-touch-amoled-216/firmware.bin
-```
-
-连接开发板后烧录并查看串口：
-
-```bash
-pio run -t upload
-pio device monitor
-```
-
-如果首次烧录时没有识别到下载端口，按住 BOOT、连接 USB-C，看到端口后松开 BOOT。烧录会替换设备中现有固件。
-
 ## 代码结构
 
 ```text