feat: M2.1 客户端骨架、BLE 修复、仓库整理与现状板

- BLE: 修复 BlueZ LocalName 与 Includes 冲突，串行注册与退避
- HTTP: 语音对话补 Live2D talking 标志与 session；Web 补 X-Session-Id
- Flutter: 角色/对话/模型页 + API，Gradle/依赖升级，麦克风权限
- 文档: 新增 docs/STATUS.md，校准 CLAUDE/PROGRESS/README
- 清理: 移除根目录截图与临时模型，运维脚本迁入 scripts/device

clients/flutter/lib/models/character_pack.dart

@@ -0,0 +1,92 @@
+class CharacterPack {
+  const CharacterPack({
+    required this.filename,
+    required this.name,
+    required this.characterType,
+    required this.renderType,
+    this.live2dModel,
+  });
+
+  final String filename;
+  final String name;
+  final String characterType;
+  final String renderType;
+  final String? live2dModel;
+
+  bool get isLive2d => renderType.toLowerCase() == 'live2d';
+
+  String get typeLabel {
+    switch (characterType.toLowerCase()) {
+      case 'human':
+        return '数字人';
+      case 'singer':
+        return '歌姬';
+      case 'live2d':
+        return 'Live2D';
+      case 'pet':
+      default:
+        return '宠物';
+    }
+  }
+
+  IconDataLike get iconHint {
+    switch (characterType.toLowerCase()) {
+      case 'human':
+        return IconDataLike.person;
+      case 'singer':
+        return IconDataLike.mic;
+      case 'live2d':
+        return IconDataLike.sparkle;
+      default:
+        return IconDataLike.pets;
+    }
+  }
+
+  factory CharacterPack.fromJson(Map<String, dynamic> json) {
+    final character = json['character'];
+    final Map<String, dynamic> charMap = character is Map
+        ? Map<String, dynamic>.from(character)
+        : const <String, dynamic>{};
+    final filename = json['filename']?.toString() ?? '';
+    return CharacterPack(
+      filename: filename,
+      name: charMap['name']?.toString().isNotEmpty == true
+          ? charMap['name'].toString()
+          : filename,
+      characterType: charMap['character_type']?.toString() ?? 'pet',
+      renderType: charMap['render_type']?.toString() ?? 'video',
+      live2dModel: charMap['live2d_model']?.toString(),
+    );
+  }
+}
+
+/// Avoid importing Flutter material in pure model unit tests.
+enum IconDataLike { pets, person, mic, sparkle }
+
+class AvailableConfigs {
+  const AvailableConfigs({
+    required this.configs,
+    required this.active,
+  });
+
+  final List<CharacterPack> configs;
+  final String active;
+
+  factory AvailableConfigs.fromJson(Map<String, dynamic> json) {
+    final raw = json['configs'];
+    final list = <CharacterPack>[];
+    if (raw is List) {
+      for (final item in raw) {
+        if (item is Map<String, dynamic>) {
+          list.add(CharacterPack.fromJson(item));
+        } else if (item is Map) {
+          list.add(CharacterPack.fromJson(Map<String, dynamic>.from(item)));
+        }
+      }
+    }
+    return AvailableConfigs(
+      configs: list,
+      active: json['active']?.toString() ?? '',
+    );
+  }
+}