网络请求打通，ws 打通

apps/im_app/lib/core/ui/base/app_theme.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 
-import 'colors.dart';
-import 'font.dart';
+import 'package:im_app/core/ui/base/colors.dart';
+import 'package:im_app/core/ui/base/font.dart';
 
 /// 主题组装 -- 将 AppColors / AppFont 组装为 ThemeData
 ///

apps/im_app/lib/core/ui/base/context_theme_ext.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import 'font.dart';
+import 'package:im_app/core/ui/base/font.dart';
 
 /// 主题样式快捷封装
 ///

apps/im_app/lib/core/ui/components/app_button.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import '../base/context_theme_ext.dart';
+import 'package:im_app/core/ui/base/context_theme_ext.dart';
 
 /// # AppButton — 按钮原子组件（L2 Component）
 ///
@@ -117,12 +117,9 @@ class AppButton extends StatelessWidget {
 
   Widget _buildInverse(BuildContext context, Widget label) {
     final s = context.styles;
-    final isDark = s.isDark;
-    final bg = isDark ? Colors.white : Colors.black;
-    final fg = isDark ? Colors.black : Colors.white;
     final style = FilledButton.styleFrom(
-      backgroundColor: bg,
-      foregroundColor: fg,
+      backgroundColor: s.onSurface,
+      foregroundColor: s.surface,
     );
     if (icon != null) {
       return FilledButton.icon(

apps/im_app/lib/core/ui/composites/app_dialog.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import '../components/app_button.dart';
+import 'package:im_app/core/ui/components/app_button.dart';
 
 /// # AppDialog — 业务确认弹窗（L3 Composite）
 ///