Document BLE screen layout and refresh firmware metadata.

Describe scrollable log above buttons; sync meta.json and VERSION.txt.

Co-authored-by: Cursor <cursoragent@cursor.com>

firmware/README.md

@@ -3,7 +3,9 @@
 当前归档目录：[`cyd/`](cyd/)
 
 对应板子：**CYD ESP32-2432S028R**（ILI9341）  
-功能：**BLE 外设**（NimBLE + Nordic UART + 屏上状态）  
+功能：**BLE 外设**（NimBLE + Nordic UART；屏上状态 + 滚动日志 + Adv/Echo/Ping）  
+分区：`min_spiffs`（约 1.9MB APP）  
+
 版本信息见 [`cyd/VERSION.txt`](cyd/VERSION.txt)。
 
 也可在 [`../../cydweb`](../../cydweb)（CYD Flasher）里通过浏览器串口刷写本目录固件。

firmware/cyd/VERSION.txt

@@ -1,5 +1,5 @@
 name: CYD BLE (cyd)
-git: e987685
+git: 87120b8
 date: 2026-10-23
 board: ESP32-2432S028R (ILI9341)
 features: NimBLE Nordic UART, LVGL status UI, SoftSPI touch

firmware/cyd/meta.json

@@ -2,6 +2,6 @@
   "boardId": "esp32-2432s028",
   "name": "CYD BLE",
   "summary": "NimBLE Nordic UART peripheral with LVGL status UI",
-  "description": "Advertise as CYD-BLE, Nordic UART Service for phone apps (nRF Connect / Serial Bluetooth Terminal). Echo, Ping, advertise control on touchscreen.",
+  "description": "Advertise as CYD-BLE with Nordic UART Service. Touch UI: status, scrollable RX/TX log above button bar (Adv / Echo / Ping / Clear). Works with nRF Connect and Serial Bluetooth Terminal.",
   "tags": ["ble", "nimble", "nus", "uart", "touch"]
 }