chore: 更新配置和环境变量适配云端 Supabase

apps/lib/core/config/env.dart

@@ -5,7 +5,7 @@ class Env {
     const url = String.fromEnvironment('API_URL');
     if (url.isNotEmpty) return url;
     if (Platform.isAndroid) {
-      return 'http://10.0.2.2:5775';
+      return 'http://192.168.1.25:5775';
     }
     return 'http://localhost:5775';
   }

apps/lib/core/theme/design_tokens.dart

@@ -108,6 +108,7 @@ class AppColors {
 class AppSpacing {
   AppSpacing._();
 
+  static const double none = 0.0;
   static const double xs = 4.0;
   static const double sm = 8.0;
   static const double md = 12.0;

apps/lib/features/chat/data/services/ag_ui_service.dart

@@ -82,6 +82,7 @@ class AgUiService {
       'audio': await MultipartFile.fromFile(
         filePath,
         filename: 'recording.wav',
+        contentType: DioMediaType('audio', 'wav'),
       ),
     });
     final response = await _apiClient.post<Map<String, dynamic>>(