feat(zen-box): 新增云端配置同步功能，完善应用构建与配置

本次提交实现了观空禅音应用的核心云端同步功能，包括：
1.  添加用户登录验证接口与本地存储管理
2.  新增云端配置存储与拉取接口，支持跨设备同步歌单、播放进度等设置
3.  新增登录页面与设置页账号管理模块
4.  更新依赖包版本与安卓、iOS打包配置
5.  优化缓存下载逻辑，修复OSS链接编码问题
6.  新增离线模式支持，自动过滤无缓存歌单
7.  新增歌曲排序偏好本地与云端同步功能

apps/app_zen_box/screens/SettingsScreen.tsx

@@ -1,5 +1,5 @@
 import React, { useState, useEffect } from 'react';
-import { View, Text, StyleSheet, TouchableOpacity, Alert, Switch, ActivityIndicator } from 'react-native';
+import { View, Text, StyleSheet, TouchableOpacity, Alert, Switch, ActivityIndicator, ScrollView } from 'react-native';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import Svg, { Path } from 'react-native-svg';
 import { theme } from '../theme';
@@ -66,10 +66,13 @@ interface SettingsScreenProps {
   currentPlaylistFile: string;
   cachedTrackCount: number;
   trackCount: number;
+  loggedInUser: string | null;
   onCacheOnlyChange: (value: boolean) => Promise<void>;
   onResumePlaybackChange: (value: boolean) => Promise<void>;
   onCacheChanged: () => Promise<void> | void;
   onPlaylistChange: (fileName: string) => Promise<void>;
+  onLoginPress: () => void;
+  onLogout: () => void;
 }
 
 export const SettingsScreen: React.FC<SettingsScreenProps> = ({
@@ -79,10 +82,13 @@ export const SettingsScreen: React.FC<SettingsScreenProps> = ({
   currentPlaylistFile,
   cachedTrackCount,
   trackCount,
+  loggedInUser,
   onCacheOnlyChange,
   onResumePlaybackChange,
   onCacheChanged,
   onPlaylistChange,
+  onLoginPress,
+  onLogout,
 }) => {
   const [cacheSize, setCacheSize] = useState<string>('0 B');
   const [isLoading, setIsLoading] = useState(false);
@@ -163,12 +169,32 @@ export const SettingsScreen: React.FC<SettingsScreenProps> = ({
     );
   };
 
+  const handleLogout = () => {
+    Alert.alert(
+      '退出登录',
+      '确定要退出登录吗？退出后云端配置将不再同步。',
+      [
+        { text: '取消', style: 'cancel' },
+        {
+          text: '退出',
+          style: 'destructive',
+          onPress: () => {
+            onLogout();
+            Alert.alert('已退出', '已退出登录');
+          },
+        },
+      ]
+    );
+  };
+
   return (
     <SafeAreaView style={styles.container} edges={['top', 'bottom']}>
       <View style={styles.header}>
         <Text style={styles.headerTitle}>设置</Text>
       </View>
 
+      <ScrollView style={styles.scrollContent} contentContainerStyle={styles.scrollContentInner}>
+
       <View style={styles.section}>
         <Text style={styles.sectionTitle}>播放设置</Text>
         <SettingItem
@@ -249,6 +275,33 @@ export const SettingsScreen: React.FC<SettingsScreenProps> = ({
         />
       </View>
 
+      <View style={styles.section}>
+        <Text style={styles.sectionTitle}>账号</Text>
+        {loggedInUser ? (
+          <>
+            <SettingItem
+              title="已登录"
+              subtitle={`当前账号：${loggedInUser}`}
+              rightElement={
+                <TouchableOpacity onPress={handleLogout} style={styles.logoutBtn}>
+                  <Text style={styles.logoutText}>退出</Text>
+                </TouchableOpacity>
+              }
+            />
+            <Text style={styles.syncHint}>
+              歌单选择、播放进度等配置已同步到云端，跨设备可用。
+            </Text>
+          </>
+        ) : (
+          <SettingItem
+            title="登录以同步配置"
+            subtitle="跨设备同步歌单选择、播放进度等"
+            onPress={onLoginPress}
+            showChevron={true}
+          />
+        )}
+      </View>
+
       <View style={styles.section}>
         <Text style={styles.sectionTitle}>关于</Text>
         <View style={styles.aboutCard}>
@@ -263,9 +316,10 @@ export const SettingsScreen: React.FC<SettingsScreenProps> = ({
         </View>
         <SettingItem
           title="版本"
-          subtitle="1.0.0"
+          subtitle="1.0.0 (2)"
         />
       </View>
+      </ScrollView>
     </SafeAreaView>
   );
 };
@@ -275,6 +329,12 @@ const styles = StyleSheet.create({
     flex: 1,
     backgroundColor: theme.colors.background,
   },
+  scrollContent: {
+    flex: 1,
+  },
+  scrollContentInner: {
+    paddingBottom: theme.spacing.xl,
+  },
   header: {
     paddingHorizontal: theme.spacing.md,
     paddingVertical: theme.spacing.sm,
@@ -399,4 +459,22 @@ const styles = StyleSheet.create({
     lineHeight: 22,
     color: theme.colors.textSecondary,
   },
+  logoutBtn: {
+    paddingHorizontal: theme.spacing.sm,
+    paddingVertical: theme.spacing.xs,
+    borderRadius: theme.borderRadius.sm,
+    borderWidth: 1,
+    borderColor: theme.colors.error,
+  },
+  logoutText: {
+    fontSize: 13,
+    color: theme.colors.error,
+  },
+  syncHint: {
+    fontSize: 12,
+    lineHeight: 18,
+    color: theme.colors.textSecondary,
+    paddingHorizontal: theme.spacing.md,
+    paddingVertical: theme.spacing.xs,
+  },
 });