chore: 移除NFC/蓝牙相关支持，更新设备在线统计，新增功能优化

1.  移除NFC和蓝牙相关依赖、权限及功能代码，精简传输链路
2.  重构设备在线统计逻辑，使用后端7天活跃字段替代本地计算
3.  更新应用名称、权限说明和协议文档
4.  新增消息转发、缓存管理、医疗免责提示功能
5.  优化运势模块和字体管理文案，修复构建日志问题

windows/flutter/generated_plugin_registrant.cc

@@ -12,7 +12,6 @@
 #include <connectivity_plus/connectivity_plus_windows_plugin.h>
 #include <desktop_drop/desktop_drop_plugin.h>
 #include <file_selector_windows/file_selector_windows.h>
-#include <flutter_blue_plus_winrt/flutter_blue_plus_plugin.h>
 #include <flutter_inappwebview_windows/flutter_inappwebview_windows_plugin_c_api.h>
 #include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
 #include <flutter_tts/flutter_tts_plugin.h>
@@ -42,8 +41,6 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("DesktopDropPlugin"));
   FileSelectorWindowsRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FileSelectorWindows"));
-  FlutterBluePlusPluginRegisterWithRegistrar(
-      registry->GetRegistrarForPlugin("FlutterBluePlusPlugin"));
   FlutterInappwebviewWindowsPluginCApiRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FlutterInappwebviewWindowsPluginCApi"));
   FlutterSecureStorageWindowsPluginRegisterWithRegistrar(