✨ feat: 应用界面重构 - 从模板中心到AI内容生成平台

- 重构首页：从模板列表展示改为AI功能展示界面
- 更新底部导航：将explore改为content，index改为home
- 新增多个页面：积分、兑换、历史记录、结果展示、设置等
- 优化UI组件：新增通用按钮、分类标签、加载状态等组件
- 清理冗余文件：删除旧的认证文档和积分详情页面
- 更新主题配置：调整配色方案和视觉风格
- 修复导入路径：优化组件导入结构

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

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

app/(tabs)/history.tsx

@@ -0,0 +1,149 @@
+import { ThemedView } from '@/components/themed-view';
+import { StatusBar } from 'expo-status-bar';
+import React from 'react';
+import { Image, ScrollView, StyleSheet, Text, View } from 'react-native';
+import { SafeAreaView } from 'react-native-safe-area-context';
+
+type GalleryLane = 'leading' | 'trailing';
+
+interface GalleryTile {
+  id: string;
+  lane: GalleryLane;
+  uri: string;
+  height: number;
+}
+
+const curatedGallery: GalleryTile[] = [
+  {
+    id: 'ember-circle',
+    lane: 'leading',
+    uri: 'https://images.unsplash.com/photo-1616004655122-818af0f3efc6?auto=format&fit=crop&w=1200&q=80',
+    height: 232,
+  },
+  {
+    id: 'ocean-horizon',
+    lane: 'trailing',
+    uri: 'https://images.unsplash.com/photo-1469474968028-56623f02e42e?auto=format&fit=crop&w=1200&q=80',
+    height: 152,
+  },
+  {
+    id: 'studio-poise',
+    lane: 'trailing',
+    uri: 'https://images.unsplash.com/photo-1582096897407-9b6c86e1a8d3?auto=format&fit=crop&w=1200&q=80',
+    height: 232,
+  },
+  {
+    id: 'duo-portrait',
+    lane: 'leading',
+    uri: 'https://images.unsplash.com/photo-1601040122900-86ad461b8234?auto=format&fit=crop&w=1200&q=80',
+    height: 148,
+  },
+  {
+    id: 'sage-armor',
+    lane: 'leading',
+    uri: 'https://images.unsplash.com/photo-1524504388940-b1c1722653e1?auto=format&fit=crop&w=1200&q=80',
+    height: 224,
+  },
+  {
+    id: 'velvet-repose',
+    lane: 'trailing',
+    uri: 'https://images.unsplash.com/photo-1515378791036-0648a3ef77b2?auto=format&fit=crop&w=1200&q=80',
+    height: 188,
+  },
+  {
+    id: 'nocturne-lounge',
+    lane: 'trailing',
+    uri: 'https://images.unsplash.com/photo-1573497491208-6b1acb260507?auto=format&fit=crop&w=1200&q=80',
+    height: 184,
+  },
+  {
+    id: 'sunlit-duet',
+    lane: 'leading',
+    uri: 'https://images.unsplash.com/photo-1531257240576-a4a0ef4af1c8?auto=format&fit=crop&w=1200&q=80',
+    height: 188,
+  },
+];
+
+const leadingNarratives = curatedGallery.filter(tile => tile.lane === 'leading');
+const trailingNarratives = curatedGallery.filter(tile => tile.lane === 'trailing');
+
+export default function HistoryScreen() {
+  return (
+    <ThemedView style={styles.canvas} lightColor="#050505" darkColor="#050505">
+      <StatusBar style="light" />
+      <SafeAreaView style={styles.safeArea} edges={['top', 'left', 'right']}>
+        <ScrollView
+          showsVerticalScrollIndicator={false}
+          contentContainerStyle={styles.scrollContent}
+        >
+          <Text style={styles.heading}>Content Generation</Text>
+          <Text style={styles.dateline}>10.19 Wednesday</Text>
+          <View style={styles.gallery}>
+            <View style={styles.leadingLane}>
+              {leadingNarratives.map(tile => (
+                <Image
+                  key={tile.id}
+                  source={{ uri: tile.uri }}
+                  style={[styles.frame, { height: tile.height }]}
+                />
+              ))}
+            </View>
+            <View style={styles.trailingLane}>
+              {trailingNarratives.map(tile => (
+                <Image
+                  key={tile.id}
+                  source={{ uri: tile.uri }}
+                  style={[styles.frame, { height: tile.height }]}
+                />
+              ))}
+            </View>
+          </View>
+        </ScrollView>
+      </SafeAreaView>
+    </ThemedView>
+  );
+}
+
+const styles = StyleSheet.create({
+  canvas: {
+    flex: 1,
+  },
+  safeArea: {
+    flex: 1,
+  },
+  scrollContent: {
+    paddingHorizontal: 24,
+    paddingTop: 24,
+    paddingBottom: 48,
+  },
+  heading: {
+    fontSize: 24,
+    fontWeight: '600',
+    color: '#FFFFFF',
+    textAlign: 'center',
+    letterSpacing: 0.4,
+  },
+  dateline: {
+    marginTop: 16,
+    fontSize: 16,
+    fontWeight: '500',
+    color: '#EDEDED',
+  },
+  gallery: {
+    flexDirection: 'row',
+    marginTop: 24,
+  },
+  leadingLane: {
+    flex: 1,
+    paddingRight: 12,
+  },
+  trailingLane: {
+    flex: 1,
+    paddingLeft: 12,
+  },
+  frame: {
+    width: '100%',
+    borderRadius: 28,
+    marginBottom: 16,
+  },
+});