fix: 修复 Android 闪退问题 - SecureStore 异步调用

问题：
- NativeStorage 使用了同步方法调用 expo-secure-store
- expo-secure-store 的正确 API 是异步的（getItemAsync/setItemAsync/deleteItemAsync）
- 在 Android 上同步调用不存在的方法导致应用崩溃

修复：
- 将 Storage 接口改为异步方法
- 使用 SecureStore.getItemAsync/setItemAsync/deleteItemAsync
- removeItem 使用 deleteItemAsync 而不是设置空字符串

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/result.tsx

@@ -1,10 +1,29 @@
 import { ThemedView } from '@/components/themed-view';
-import { VideoView, useVideoPlayer } from 'expo-video';
-import * as MediaLibrary from 'expo-media-library';
-import * as FileSystem from 'expo-file-system';
-import { Platform } from 'react-native';
-import { ThemedText } from '@/components/themed-text';
 import { getTemplateGeneration } from '@/lib/api/template-runs';
+import * as Clipboard from 'expo-clipboard';
+import * as FileSystem from 'expo-file-system';
+import * as MediaLibrary from 'expo-media-library';
+import { router, useLocalSearchParams } from 'expo-router';
+import { VideoView, useVideoPlayer } from 'expo-video';
+import {
+  ArrowLeft,
+  Copy,
+  Download,
+  Maximize2,
+  Plus,
+  X,
+} from 'lucide-react';
+import React, { useEffect, useState } from 'react';
+import {
+  ActivityIndicator,
+  Alert,
+  Dimensions,
+  Image, Modal, Platform, ScrollView,
+  StyleSheet, Text,
+  TouchableOpacity,
+  View
+} from 'react-native';
+import { useSafeAreaInsets } from 'react-native-safe-area-context';
 
 // ResizeMode 兼容映射 - 移除 'stretch'，expo-video 不支持
 const ResizeMode = {
@@ -12,43 +31,33 @@ const ResizeMode = {
   COVER: 'cover' as const,
   STRETCH: 'fill' as const, // 使用 'fill' 替代 'stretch'
 };
-import { router, useLocalSearchParams } from 'expo-router';
-import { useSafeAreaInsets } from 'react-native-safe-area-context';
-import {
-  Copy,
-  Download,
-  Maximize2,
-  Plus,
-  X,
-  ArrowLeft,
-} from 'lucide-react';
-import React, { useEffect, useState } from 'react';
-import {
-  ActivityIndicator,
-  Alert,
-  Dimensions,
-  Image,
-  ImageStyle,
-  Modal,
-  ScrollView,
-  StyleSheet,
-  StyleProp,
-  Text,
-  TouchableOpacity,
-  View,
-  ViewStyle,
-  FlatList,
-} from 'react-native';
 
 const { width: screenWidth, height: screenHeight } = Dimensions.get('window');
 const HERO_HEIGHT = screenWidth * 0.58;
 const VIDEO_HEIGHT = screenHeight * 0.6;
 
+// 原生视频播放组件
+const NativeVideoPlayer: React.FC<{ url: string; style?: any }> = ({ url, style }) => {
+  const player = useVideoPlayer(url, player => {
+    player.loop = false;
+  });
+
+  return (
+    <VideoView
+      player={player}
+      style={style}
+      contentFit="contain"
+      allowsFullscreen
+      allowsPictureInPicture
+    />
+  );
+};
+
 interface ResultWithTemplate {
   id: string;
   userId: string;
   templateId: string;
-  type: 'TEXT' | 'IMAGE' | 'VIDEO';
+  type: 'UNKNOWN' | 'TEXT' | 'IMAGE' | 'VIDEO';
   resultUrl: string[];
   status: 'pending' | 'running' | 'completed' | 'failed';
   creditsCost?: number;
@@ -233,7 +242,7 @@ export default function ResultPage() {
     if (!result || result.type !== 'TEXT') return;
 
     try {
-      await navigator.clipboard?.writeText?.(result.resultUrl[0]);
+      await Clipboard.setStringAsync(result.resultUrl[0]);
       Alert.alert('复制成功', '文本已复制到剪贴板');
     } catch (error) {
       Alert.alert('复制失败', '无法复制文本');
@@ -306,9 +315,10 @@ export default function ResultPage() {
               playsInline
             />
           ) : (
-            <View style={{ width: '100%', height: VIDEO_HEIGHT }}>
-              <ThemedText>Video: {url}</ThemedText>
-            </View>
+            <NativeVideoPlayer
+              url={url}
+              style={{ width: '100%', height: VIDEO_HEIGHT }}
+            />
           )
         ) : (
           <Image
@@ -435,9 +445,10 @@ export default function ResultPage() {
                       controls
                     />
                   ) : (
-                    <View style={styles.fullscreenMediaContent}>
-                      <ThemedText>Video Player</ThemedText>
-                    </View>
+                    <NativeVideoPlayer
+                      url={fullscreenContent.url}
+                      style={styles.fullscreenMediaContent}
+                    />
                   )}
                 </>
               )}