chore: release v1.0.18

移动端响应式适配（抽屉导航/列表卡片/弹窗自适应）、Android 正式签名与 APK 发布、
iOS(TestFlight) 工程与 CI、多平台构建流水线、相关文档同步。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

client/lib/screens/about/about_screen.dart

@@ -1,5 +1,6 @@
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
+import '../../core/responsive/responsive.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:intl/intl.dart';
@@ -340,7 +341,7 @@ class _FeedbackDialogState extends ConsumerState<_FeedbackDialog> {
     return AlertDialog(
       title: Text(isBug ? '反馈 Bug' : '功能建议'),
       content: SizedBox(
-        width: 440,
+        width: context.dialogWidth(440),
         child: Column(
           mainAxisSize: MainAxisSize.min,
           crossAxisAlignment: CrossAxisAlignment.start,