chore: 完成v1.2版本迭代优化与兼容修复

1. 基础适配升级：将iOS最低版本提升至15.5，更新Podfile与Xcode配置
2. 导航栈优化：使用push替代go保留路由栈，重构路由重定向逻辑
3. 多场景崩溃防护：
   - 新增目录获取降级逻辑，适配异常环境
   - 增加上下文挂载检查，防止PostFrame回调崩溃
   - 完善Hive初始化与Box访问的异常处理，实现空操作降级
4. 体验优化：
   - 修复摇一摇权限开关逻辑，更新个人中心文案
   - 新增请求超时保护与异常提示
   - 优化分享/保存相册的模拟器兼容处理
   - 重构引导页与初始化流程，修复数据丢失问题
5. 代码清理：移除重复路由注册，优化Widget预览页面生命周期
6. 细节优化：更新微信联系方式展示样式，完善日签与备份服务逻辑

scripts/verify_fonts.dart

@@ -1,298 +0,0 @@
-/// ============================================================
-/// 闲言APP — 字体下载URL验证脚本
-/// 创建时间: 2026-05-22
-/// 更新时间: 2026-05-22
-/// 作用: 验证所有在线字体URL的可访问性和文件格式有效性
-/// 上次更新: 初始创建，验证8个字体+备用URL的下载和文件头校验
-/// 运行方式: dart run Scripts/verify_fonts.dart
-/// ============================================================
-
-import 'dart:io';
-import 'dart:typed_data';
-
-/// 字体数据定义（与 font_models.dart 保持同步）
-const onlineFontData = [
-  (
-    '霞鹜文楷',
-    'LXGWWenKai',
-    'https://raw.githubusercontent.com/lxgw/LxgwWenKai/main/fonts/LXGWWenKai-Regular.ttf',
-    '🖋️',
-  ),
-  (
-    '阿里巴巴普惠体',
-    'AlibabaPuHuiTi',
-    'https://puhuiti.oss-cn-hangzhou.aliyuncs.com/AlibabaPuHuiTi-3/AlibabaPuHuiTi-3-55-Regular/AlibabaPuHuiTi-3-55-Regular.ttf',
-    '💼',
-  ),
-  (
-    '站酷快乐体',
-    'ZCOOLKuaiLe',
-    'https://raw.githubusercontent.com/googlefonts/zcool-kuaile/main/fonts/ttf/ZCOOLKuaiLe-Regular.ttf',
-    '🎉',
-  ),
-  (
-    '站酷小薇',
-    'ZCOOLXiaoWei',
-    'https://raw.githubusercontent.com/googlefonts/zcool-xiaowei/main/fonts/ZCOOLXiaoWei-Regular.ttf',
-    '🌸',
-  ),
-  (
-    '思源黑体',
-    'NotoSansSC',
-    'https://raw.githubusercontent.com/notofonts/noto-cjk/main/Sans/OTF/SimplifiedChinese/NotoSansCJKsc-Regular.otf',
-    '📐',
-  ),
-  (
-    '思源宋体',
-    'NotoSerifSC',
-    'https://raw.githubusercontent.com/notofonts/noto-cjk/main/Serif/OTF/SimplifiedChinese/NotoSerifCJKsc-Regular.otf',
-    '📜',
-  ),
-  (
-    '更纱黑体',
-    'SarasaGothicSC',
-    'https://raw.githubusercontent.com/be5invis/Sarasa-Gothic/main/fonts/SarasaGothicSC-Regular.ttf',
-    '🎯',
-  ),
-  (
-    '文泉驿微米黑',
-    'WenQuanYiMicroHei',
-    'https://raw.githubusercontent.com/niclas/wqy-microhei-font/master/wqy-microhei.ttc',
-    '✒️',
-  ),
-];
-
-const fontFallbackUrls = <String, List<String>>{
-  'LXGWWenKai': [
-    'https://cdn.jsdelivr.net/gh/lxgw/LxgwWenKai@v1.501/fonts/LXGWWenKai-Regular.ttf',
-    'https://github.com/lxgw/LxgwWenKai/releases/download/v1.501/LXGWWenKai-Regular.ttf',
-  ],
-  'AlibabaPuHuiTi': [
-    'https://fonts.alicdn.com/font/AlibabaPuHuiTi-3/AlibabaPuHuiTi-3-55-Regular.ttf',
-  ],
-  'ZCOOLKuaiLe': [
-    'https://cdn.jsdelivr.net/gh/googlefonts/zcool-kuaile@main/fonts/ttf/ZCOOLKuaiLe-Regular.ttf',
-  ],
-  'ZCOOLXiaoWei': [
-    'https://cdn.jsdelivr.net/gh/googlefonts/zcool-xiaowei@main/fonts/ZCOOLXiaoWei-Regular.ttf',
-  ],
-  'NotoSansSC': [
-    'https://cdn.jsdelivr.net/gh/notofonts/noto-cjk@main/Sans/OTF/SimplifiedChinese/NotoSansCJKsc-Regular.otf',
-  ],
-  'NotoSerifSC': [
-    'https://cdn.jsdelivr.net/gh/notofonts/noto-cjk@main/Serif/OTF/SimplifiedChinese/NotoSerifCJKsc-Regular.otf',
-  ],
-  'SarasaGothicSC': [
-    'https://github.com/be5invis/Sarasa-Gothic/releases/download/v1.0.19/SarasaGothicSC-Regular.ttf',
-  ],
-  'WenQuanYiMicroHei': [
-    'https://cdn.jsdelivr.net/gh/niclas/wqy-microhei-font@master/wqy-microhei.ttc',
-  ],
-};
-
-/// 校验字体文件头是否为有效 TTF/OTF/TTC
-bool isValidFontFile(Uint8List bytes) {
-  if (bytes.length < 4) return false;
-  final h = bytes;
-  final isTtf = (h[0] == 0x00 && h[1] == 0x01 && h[2] == 0x00 && h[3] == 0x00) ||
-      (h[0] == 0x74 && h[1] == 0x72 && h[2] == 0x75 && h[3] == 0x65);
-  final isOtf = h[0] == 0x4F && h[1] == 0x54 && h[2] == 0x54 && h[3] == 0x4F;
-  final isTtc = h[0] == 0x74 && h[1] == 0x74 && h[2] == 0x63 && h[3] == 0x66;
-  return isTtf || isOtf || isTtc;
-}
-
-/// 检测字体格式类型
-String detectFontType(Uint8List bytes) {
-  if (bytes.length < 4) return '未知(数据不足)';
-  final h = bytes;
-  if (h[0] == 0x00 && h[1] == 0x01 && h[2] == 0x00 && h[3] == 0x00) return 'TTF';
-  if (h[0] == 0x74 && h[1] == 0x72 && h[2] == 0x75 && h[3] == 0x65) return 'TTF(true)';
-  if (h[0] == 0x4F && h[1] == 0x54 && h[2] == 0x54 && h[3] == 0x4F) return 'OTF';
-  if (h[0] == 0x74 && h[1] == 0x74 && h[2] == 0x63 && h[3] == 0x66) return 'TTC';
-  return '未知(0x${h[0].toRadixString(16)}${h[1].toRadixString(16)}${h[2].toRadixString(16)}${h[3].toRadixString(16)})';
-}
-
-/// 下载字体并验证
-Future<_FontVerifyResult> verifyFontUrl(
-  String name,
-  String fontFamily,
-  String url,
-  HttpClient client,
-) async {
-  final result = _FontVerifyResult(name: name, fontFamily: fontFamily, url: url);
-
-  try {
-    final request = await client.getUrl(Uri.parse(url));
-    final response = await request.close();
-
-    result.statusCode = response.statusCode;
-
-    if (response.statusCode != 200) {
-      result.success = false;
-      result.error = 'HTTP ${response.statusCode}';
-      return result;
-    }
-
-    final bytes = await consolidateBytes(response);
-    result.fileSize = bytes.length;
-    result.fontType = detectFontType(bytes);
-    result.validFormat = isValidFontFile(bytes);
-    result.success = result.validFormat;
-
-    if (!result.validFormat) {
-      result.error = '文件头非 TTF/OTF/TTC 格式，检测为: ${result.fontType}';
-    }
-  } catch (e) {
-    result.success = false;
-    result.error = e.toString();
-  }
-
-  return result;
-}
-
-/// 合并 HttpClientResponse 的字节流
-Future<Uint8List> consolidateBytes(HttpClientResponse response) async {
-  final builder = BytesBuilder();
-  await for (final chunk in response) {
-    builder.add(chunk);
-  }
-  return builder.toBytes();
-}
-
-/// 验证结果
-class _FontVerifyResult {
-  _FontVerifyResult({
-    required this.name,
-    required this.fontFamily,
-    required this.url,
-  });
-
-  final String name;
-  final String fontFamily;
-  final String url;
-  bool success = false;
-  int? statusCode;
-  int? fileSize;
-  String? fontType;
-  bool validFormat = false;
-  String? error;
-
-  String get fileSizeStr {
-    if (fileSize == null) return 'N/A';
-    if (fileSize! < 1024) return '$fileSize B';
-    if (fileSize! < 1024 * 1024) return '${(fileSize! / 1024).toStringAsFixed(1)} KB';
-    return '${(fileSize! / (1024 * 1024)).toStringAsFixed(1)} MB';
-  }
-}
-
-Future<void> main() async {
-  print('═══════════════════════════════════════════════════════════');
-  print('  闲言APP — 字体下载URL验证工具');
-  print('  运行时间: ${DateTime.now().toIso8601String()}');
-  print('═══════════════════════════════════════════════════════════');
-  print('');
-
-  final client = HttpClient();
-  client.connectionTimeout = const Duration(seconds: 30);
-  client.userAgent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36';
-
-  final results = <_FontVerifyResult>[];
-
-  print('━━━ 阶段1: 主URL验证 ━━━');
-  print('');
-
-  for (final font in onlineFontData) {
-    final name = font.$1;
-    final fontFamily = font.$2;
-    final url = font.$3;
-
-    stdout.write('  $name ($fontFamily)... ');
-    final result = await verifyFontUrl(name, fontFamily, url, client);
-    results.add(result);
-
-    if (result.success) {
-      print('✅ 通过 [${result.fontType}] ${result.fileSizeStr}');
-    } else {
-      print('❌ 失败 [${result.error}]');
-    }
-  }
-
-  print('');
-  print('━━━ 阶段2: 备用URL验证 ━━━');
-  print('');
-
-  for (final entry in fontFallbackUrls.entries) {
-    final fontFamily = entry.key;
-    final fallbacks = entry.value;
-    final fontName = onlineFontData
-            .where((f) => f.$2 == fontFamily)
-            .map((f) => f.$1)
-            .firstOrNull ??
-        fontFamily;
-
-    for (int i = 0; i < fallbacks.length; i++) {
-      final url = fallbacks[i];
-      stdout.write('  $fontName 备用#${i + 1}... ');
-      final result = await verifyFontUrl(fontName, fontFamily, url, client);
-      results.add(result);
-
-      if (result.success) {
-        print('✅ 通过 [${result.fontType}] ${result.fileSizeStr}');
-      } else {
-        print('❌ 失败 [${result.error}]');
-      }
-    }
-  }
-
-  client.close();
-
-  print('');
-  print('═══════════════════════════════════════════════════════════');
-  print('  验证结果汇总');
-  print('═══════════════════════════════════════════════════════════');
-  print('');
-
-  final primaryResults = results.sublist(0, onlineFontData.length);
-  final fallbackResults = results.sublist(onlineFontData.length);
-
-  print('  主URL结果:');
-  for (final r in primaryResults) {
-    final icon = r.success ? '✅' : '❌';
-    print('    $icon ${r.name} — ${r.success ? '${r.fontType} ${r.fileSizeStr}' : r.error}');
-  }
-
-  print('');
-  print('  备用URL结果:');
-  for (final r in fallbackResults) {
-    final icon = r.success ? '✅' : '❌';
-    print('    $icon ${r.name} — ${r.success ? '${r.fontType} ${r.fileSizeStr}' : r.error}');
-  }
-
-  final primaryPass = primaryResults.where((r) => r.success).length;
-  final primaryTotal = primaryResults.length;
-  final allPass = results.where((r) => r.success).length;
-  final allTotal = results.length;
-
-  print('');
-  print('  主URL: $primaryPass/$primaryTotal 通过');
-  print('  全部:  $allPass/$allTotal 通过');
-  print('');
-
-  final failedPrimary = primaryResults.where((r) => !r.success).toList();
-  if (failedPrimary.isNotEmpty) {
-    print('  ⚠️  以下字体主URL不可用，需要更新:');
-    for (final r in failedPrimary) {
-      final hasFallback = fallbackResults.any(
-        (f) => f.fontFamily == r.fontFamily && f.success,
-      );
-      print('    - ${r.name}: ${r.error} ${hasFallback ? '(有可用备用URL)' : '(⚠️ 无可用备用URL!)'}');
-    }
-  } else {
-    print('  🎉 所有字体主URL验证通过！');
-  }
-
-  print('');
-  print('═══════════════════════════════════════════════════════════');
-
-  exit(failedPrimary.isNotEmpty ? 1 : 0);
-}