feat: 添加 BLE HID 键盘支持与配置

- 在 sdkconfig.defaults 中更新 BLE 配置以支持 HID 键盘功能
- 新增 ble_hid.c 和 ble_hid.h 文件，实现 BLE HID 键盘的核心功能
- 更新 CMakeLists.txt，包含新的服务文件以支持 BLE HID
- 修改 ui_handlers.c，响应启动按钮事件以发送 HID 按键
- 更新 ble_manager.c，初始化 BLE HID 功能并处理连接状态
- 新增 esp_hid_gap.c 和 esp_hid_gap.h 文件，管理 BLE HID 的 GAP 相关功能

sdkconfig.defaults

@@ -5,7 +5,17 @@ CONFIG_ESP_LCD_TOUCH_CST816S_DISABLE_READ_ID=y
 CONFIG_PARTITION_TABLE_SINGLE_APP=n
 CONFIG_PARTITION_TABLE_SINGLE_APP_LARGE=y
 
-# BLE (NimBLE peripheral)
+# BLE (NimBLE peripheral + HID keyboard)
 CONFIG_BT_ENABLED=y
 CONFIG_BT_NIMBLE_ENABLED=y
 CONFIG_BT_NIMBLE_50_FEATURE_SUPPORT=n
+CONFIG_BT_NIMBLE_ROLE_PERIPHERAL=y
+CONFIG_BT_NIMBLE_SM_LEGACY=y
+CONFIG_BT_NIMBLE_SM_SC=y
+CONFIG_BT_NIMBLE_NVS_PERSIST=y
+CONFIG_BT_NIMBLE_HID_SERVICE=y
+CONFIG_BT_NIMBLE_SVC_HID_MAX_RPTS=3
+CONFIG_BT_NIMBLE_BAS_SERVICE=y
+CONFIG_BT_NIMBLE_DIS_SERVICE=y
+CONFIG_BT_NIMBLE_SVC_DIS_PNP_ID=y
+CONFIG_BT_NIMBLE_SVC_DIS_MANUFACTURER_NAME=y