feat(leisure): 新增闲情逸致模块与多项功能优化

本次提交完成多项核心更新：
1. 新增闲情逸致功能模块，包含时间线、收藏标注、季节主题等基础框架
2. 替换hive为社区维护的hive_ce包，修复依赖兼容问题
3. 统一替换"开发中"提示为"当前设备不支持"，优化用户提示文案
4. 新增多项功能开关与特性标志，统一管理不可用功能提示
5. 完善用户账户洞察系统，新增头像审核中状态检测
6. 优化TTS语音朗读服务，修复Android端引擎初始化问题
7. 重构知识图谱缩放手势逻辑，解决缩放不跟手问题
8. 新增精灵头像组件，替换默认聊天头像样式
9. 新增外部链接跳转确认弹窗，提升使用安全性
10. 升级后端API接口，新增签到配置获取与补签积分规则动态读取
11. 完善多语言翻译覆盖率限制，非中文语言仅显示最高50%进度
12. 新增HTTP缓存拦截器，优化网络请求性能
13. 新增恢复出厂设置选项，完善数据管理功能

同时修复了多处代码细节问题：简化字符串拼接、优化布局代码、移除多余代码等。

lib/core/storage/database/app_database.dart

@@ -1,13 +1,13 @@
 /// ============================================================
 /// 闲言APP — Drift 数据库定义
 /// 创建时间: 2026-04-20
-/// 更新时间: 2026-05-25
+/// 更新时间: 2026-05-27
 /// 作用: 本地 SQLite 数据库表结构定义 (Drift)
-/// 上次更新: 新增TranslateRecords/TtsRecords表, schemaVersion 14->15
+/// 上次更新: 新增TranslateSessionMessages/TranslateFavorites表, schemaVersion 15->16
 /// ============================================================
 
 import 'package:drift/drift.dart';
-import 'package:hive/hive.dart';
+import 'package:hive_ce/hive.dart';
 import 'package:intl/intl.dart';
 import 'package:xianyan/core/utils/logger.dart';
 import 'database_connection/native.dart'
@@ -603,6 +603,39 @@ class TtsRecords extends Table {
   IntColumn get createdAt => integer()();
 }
 
+// ============================================================
+// 翻译会话消息表 — 替代 Hive session_messages 键
+// ============================================================
+
+class TranslateSessionMessages extends Table {
+  IntColumn get id => integer().autoIncrement()();
+  TextColumn get messageId => text()();
+  TextColumn get sessionId => text()();
+  TextColumn get role => text()();
+  TextColumn get content => text()();
+  TextColumn get sourceLang => text().withDefault(const Constant(''))();
+  TextColumn get targetLang => text().withDefault(const Constant(''))();
+  TextColumn get sourceLangName => text().withDefault(const Constant(''))();
+  TextColumn get targetLangName => text().withDefault(const Constant(''))();
+  TextColumn get detectedLang => text().withDefault(const Constant(''))();
+  TextColumn get detectedLangName => text().withDefault(const Constant(''))();
+  BoolColumn get autoDetected => boolean().withDefault(const Constant(false))();
+  TextColumn get apiProvider => text().withDefault(const Constant(''))();
+  TextColumn get status => text().withDefault(const Constant('completed'))();
+  TextColumn get errorMessage => text().withDefault(const Constant(''))();
+  IntColumn get createdAt => integer()();
+}
+
+// ============================================================
+// 翻译收藏表 — 替代 Hive favorites 键
+// ============================================================
+
+class TranslateFavorites extends Table {
+  IntColumn get id => integer().autoIncrement()();
+  TextColumn get messageId => text()();
+  IntColumn get createdAt => integer()();
+}
+
 // ============================================================
 // 数据库实例
 // ============================================================
@@ -639,6 +672,8 @@ class TtsRecords extends Table {
     MigrationErrors,
     TranslateRecords,
     TtsRecords,
+    TranslateSessionMessages,
+    TranslateFavorites,
   ],
 )
 class AppDatabase extends _$AppDatabase {
@@ -648,7 +683,7 @@ class AppDatabase extends _$AppDatabase {
   static AppDatabase get instance => _instance;
 
   @override
-  int get schemaVersion => 15;
+  int get schemaVersion => 16;
 
   Future<bool> _isMigrationExecuted(int version) async {
     final result = await (select(
@@ -936,6 +971,11 @@ class AppDatabase extends _$AppDatabase {
     await m.createTable(ttsRecords);
   }
 
+  Future<void> _migrateToV16(Migrator m) async {
+    await m.createTable(translateSessionMessages);
+    await m.createTable(translateFavorites);
+  }
+
   @override
   MigrationStrategy get migration => MigrationStrategy(
     onCreate: (m) async {
@@ -984,6 +1024,7 @@ class AppDatabase extends _$AppDatabase {
       await _runMigration(13, () => _migrateToV13(m));
       await _runMigration(14, () => _migrateToV14(m));
       await _runMigration(15, () => _migrateToV15(m));
+      await _runMigration(16, () => _migrateToV16(m));
     },
     beforeOpen: (details) async {
       Log.i(
@@ -1236,7 +1277,7 @@ class AppDatabase extends _$AppDatabase {
     return result;
   }
 
-  Future<int> getFavoriteCount() async {
+  Future<int> getTranslateFavoriteCount() async {
     try {
       final rows =
           await (selectOnly(sentences)
@@ -2137,6 +2178,108 @@ class AppDatabase extends _$AppDatabase {
   Future<void> clearTtsRecords() {
     return delete(ttsRecords).go();
   }
+
+  // ============================================================
+  // 翻译会话消息 CRUD
+  // ============================================================
+
+  Future<void> insertSessionMessage(TranslateSessionMessagesCompanion entry) {
+    return into(translateSessionMessages).insert(entry);
+  }
+
+  Future<void> insertSessionMessageBatch(
+    List<TranslateSessionMessagesCompanion> entries,
+  ) async {
+    await batch((b) {
+      for (final entry in entries) {
+        b.insert(translateSessionMessages, entry);
+      }
+    });
+  }
+
+  Future<List<TranslateSessionMessage>> getSessionMessages({
+    String? sessionId,
+    int limit = 200,
+  }) {
+    var query = select(translateSessionMessages)
+      ..orderBy([(t) => OrderingTerm.asc(t.createdAt)])
+      ..limit(limit);
+    if (sessionId != null) {
+      query = query..where((t) => t.sessionId.equals(sessionId));
+    }
+    return query.get();
+  }
+
+  Future<void> updateSessionMessage(TranslateSessionMessagesCompanion entry) {
+    return (update(
+      translateSessionMessages,
+    )..where((t) => t.messageId.equals(entry.messageId.value))).write(entry);
+  }
+
+  Future<void> clearSessionMessages({String? sessionId}) {
+    if (sessionId != null) {
+      return (delete(
+        translateSessionMessages,
+      )..where((t) => t.sessionId.equals(sessionId))).go();
+    }
+    return delete(translateSessionMessages).go();
+  }
+
+  Future<int> getSessionMessageCount({String? sessionId}) async {
+    final query = selectOnly(translateSessionMessages)
+      ..addColumns([translateSessionMessages.id.count()]);
+    if (sessionId != null) {
+      query.where(translateSessionMessages.sessionId.equals(sessionId));
+    }
+    final rows = await query.getSingle();
+    return rows.read(translateSessionMessages.id.count()) ?? 0;
+  }
+
+  // ============================================================
+  // 翻译收藏 CRUD
+  // ============================================================
+
+  Future<void> insertFavorite(TranslateFavoritesCompanion entry) {
+    return into(translateFavorites).insert(entry);
+  }
+
+  Future<List<TranslateFavorite>> getFavorites({int limit = 500}) {
+    return (select(translateFavorites)
+          ..orderBy([(t) => OrderingTerm.desc(t.createdAt)])
+          ..limit(limit))
+        .get();
+  }
+
+  Future<Set<String>> getFavoriteMessageIds() async {
+    final rows = await (select(
+      translateFavorites,
+    )..orderBy([(t) => OrderingTerm.desc(t.createdAt)])).get();
+    return rows.map((r) => r.messageId).toSet();
+  }
+
+  Future<bool> isFavorite(String messageId) async {
+    final row = await (select(
+      translateFavorites,
+    )..where((t) => t.messageId.equals(messageId))).getSingleOrNull();
+    return row != null;
+  }
+
+  Future<void> removeFavorite(String messageId) {
+    return (delete(
+      translateFavorites,
+    )..where((t) => t.messageId.equals(messageId))).go();
+  }
+
+  Future<void> clearFavorites() {
+    return delete(translateFavorites).go();
+  }
+
+  Future<int> getFavoriteCount() async {
+    final query = selectOnly(translateFavorites)
+      ..addColumns([translateFavorites.id.count()]);
+    final rows = await query.getSingle();
+    return rows.read(translateFavorites.id.count()) ?? 0;
+  }
 }
 
 class HistorySentenceWithTime {

lib/core/storage/kv_storage.dart

@@ -1,9 +1,9 @@
 /// ============================================================
 /// 闲言APP — 统一 KV 本地存储
 /// 创建时间: 2026-04-20
-/// 更新时间: 2026-05-24
+/// 更新时间: 2026-05-27
 /// 作用: 基于 Hive 的统一 KV 存储，合并原 KvStorage(SP) + AppKVStore(Hive)
-/// 上次更新: 新增channelOrder存储键，支持频道排序持久化
+/// 上次更新: 新增leisure box命名空间
 /// ============================================================
 
 import 'dart:convert';
@@ -30,6 +30,7 @@ class HiveBoxNames {
   static const String chatMessages = 'chat_messages';
   static const String wallpaperFavorites = 'wallpaper_favorites';
   static const String translateHistory = 'translateHistory';
+  static const String leisure = 'leisure';
 
   static const List<String> all = [
     app,
@@ -41,7 +42,7 @@ class HiveBoxNames {
     cacheConfig,
     chatMessages,
     wallpaperFavorites,
-    translateHistory,
+    leisure,
   ];
 }