feat: 添加 BLE 管理功能与配置

- 新增 ble_manager.c 和 ble_manager.h 文件，提供 BLE 初始化和管理功能
- 更新 CMakeLists.txt，包含 ble_manager.c 以支持 BLE 功能
- 在 sdkconfig.defaults 中启用 BLE 和相关配置
- 更新 app_main.c，初始化 BLE 管理器
- 在 Kconfig.projbuild 中添加 BLE 设备名称配置选项
- 更新 board_config.h，定义 BLE 启用标志

main/CMakeLists.txt

@@ -6,12 +6,14 @@ idf_component_register(SRCS
                         "bsp/lvgl_port.c"
                         "bsp/boot_button.c"
                         "services/wifi_manager.c"
+                        "services/ble_manager.c"
                         "ui/ui.c"
                         "ui/ui_helpers.c"
                         "ui/screens/ui_Screen1.c"
                         "ui/screens/ui_Screen2.c"
                         "ui/widgets/ui_comp_hook.c"
                     PRIV_REQUIRES
+                        bt
                         esp_wifi
                         esp_netif
                         nvs_flash