feat: 章节软删除、对话左滑删除，移除已读状态

- 章节：详情页增加删除按钮，软删除（is_active=False），AI 不再修改但保留供参考
- 章节：get_chapter 增加 is_active 校验，已删除章节返回 404
- 章节：AI 生成时参考同类别已删除章节摘要
- 对话：左滑显示删除，调用 hard delete API，删除前二次确认
- 对话：根布局包裹 GestureHandlerRootView 以支持 Swipeable
- 对话：移除已读/未读状态展示及相关 i18n

api/app/agents/prompts/memory_prompts.py

@@ -302,6 +302,7 @@ def get_narrative_prompt(
     existing_content: str = "",
     user_profile: str = "",
     birth_year: Optional[int] = None,
+    archived_summaries: str = "",
 ) -> str:
     """将新对话改写为叙述（只输出新内容的改写，不重复已有内容）"""
     context_tail = ""
@@ -309,6 +310,7 @@ def get_narrative_prompt(
         context_tail = existing_content[-300:] if len(existing_content) > 300 else existing_content
 
     context_section = f"\n\n【衔接上下文（已有内容的末尾，仅供参考衔接，不要重复）】：\n{context_tail}" if context_tail else ""
+    archived_section = f"\n\n【已删除的该类别历史章节（仅供参考，请勿直接使用或重复）】：\n{archived_summaries}" if archived_summaries else ""
 
     profile_section = f"\n\n用户基本信息：\n{user_profile}" if user_profile else ""
     age_hint = _build_age_hint(stage, birth_year)
@@ -323,6 +325,7 @@ def get_narrative_prompt(
 新的对话内容：
 {new_content}
 {context_section}
+{archived_section}
 
 ## 第一步：提炼核心内容
 在改写之前，请先从对话内容中提炼出与人生经历相关的核心信息：

api/app/features/memoir/repo.py

@@ -2,7 +2,7 @@
 
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
-from sqlalchemy.orm import joinedload
+from sqlalchemy.orm import Session, joinedload
 
 from app.features.memoir.models import Book, Chapter, ChapterSection, MemoirState
 
@@ -56,3 +56,33 @@ async def get_memoir_state(user_id: str, db: AsyncSession) -> MemoirState | None
     stmt = select(MemoirState).where(MemoirState.user_id == user_id)
     result = await db.execute(stmt)
     return result.scalar_one_or_none()
+
+
+def get_archived_chapter_summaries_sync(
+    session: Session, user_id: str, category: str
+) -> list[tuple[str, str]]:
+    """获取已删除（is_active=False）的同类别章节的标题与内容摘要，供 AI 参考。"""
+    stmt = (
+        select(Chapter)
+        .where(
+            Chapter.user_id == user_id,
+            Chapter.category == category,
+            Chapter.is_active == False,  # noqa: E712
+        )
+        .options(joinedload(Chapter.sections))
+        .order_by(Chapter.updated_at.desc())
+    )
+    result = session.execute(stmt)
+    chapters = list(result.unique().scalars().all())
+    summaries: list[tuple[str, str]] = []
+    for ch in chapters:
+        sections = getattr(ch, "sections", None) or []
+        parts = [
+            (s.content or "").strip()
+            for s in sorted(sections, key=lambda x: getattr(x, "order_index", 0))
+        ]
+        combined = "".join(parts)
+        preview = (combined[:200] + "...") if len(combined) > 200 else combined
+        if preview.strip():
+            summaries.append((ch.title or "", preview))
+    return summaries

api/app/features/memoir/service.py

@@ -170,6 +170,8 @@ class MemoirService:
             raise HTTPException(status_code=404, detail="Chapter not found")
         if chapter.user_id != user_id:
             raise HTTPException(status_code=403, detail="无权访问此章节")
+        if not chapter.is_active:
+            raise HTTPException(status_code=404, detail="Chapter not found")
         await self._cleanup_unavailable_images(chapter)
         return chapter_to_dict(chapter)
 

api/app/tasks/memoir_tasks.py

@@ -23,6 +23,7 @@ from app.features.memoir.models import (
     MemoirImage,
     MemoirState,
 )
+from app.features.memoir import repo as memoir_repo
 from app.features.user.models import User
 from app.core.dependencies import get_llm_provider
 from app.agents.state_schema import MemoirStateSchema, SlotData, default_state
@@ -713,6 +714,12 @@ def process_memoir_segments(self, user_id: str, segment_ids: List[str]):
                         )
                     narrative = combined_text
 
+                    # 已删除章节摘要供 AI 参考
+                    archived = memoir_repo.get_archived_chapter_summaries_sync(db, user_id, chapter_category)
+                    archived_summaries = "\n".join(
+                        f"- 《{title_text}》：{preview}" for title_text, preview in archived
+                    ) if archived else ""
+
                     if llm:
                         try:
                             if not chapter:
@@ -733,6 +740,7 @@ def process_memoir_segments(self, user_id: str, segment_ids: List[str]):
                                 existing_content=existing_content,
                                 user_profile=user_profile,
                                 birth_year=user_birth_year,
+                                archived_summaries=archived_summaries,
                             )
                             narrative_response = llm.invoke(narrative_prompt)
                             new_narrative = narrative_response.content.strip()
@@ -861,12 +869,18 @@ def generate_chapter_content(self, user_id: str, stage: str, new_content: str):
                     s.content for s in sorted(chapter.sections, key=lambda x: x.order_index) if (s.content or "").strip()
                 )
 
+            archived = memoir_repo.get_archived_chapter_summaries_sync(db, user_id, stage)
+            archived_summaries = "\n".join(
+                f"- 《{title_text}》：{preview}" for title_text, preview in archived
+            ) if archived else ""
+
             if llm:
                 prompt = get_narrative_prompt(
                     stage=stage,
                     slots={},
                     new_content=new_content,
                     existing_content=existing_content,
+                    archived_summaries=archived_summaries,
                 )
                 response = llm.invoke(prompt)
                 new_narrative = response.content.strip()

app-expo/src/app/(main)/chapter/[id].tsx

@@ -1,10 +1,11 @@
 import { Image } from 'expo-image';
 import { LinearGradient } from 'expo-linear-gradient';
-import { useLocalSearchParams } from 'expo-router';
+import { router, useLocalSearchParams } from 'expo-router';
-import { Settings, X } from 'lucide-react-native';
+import { Settings, Trash2, X } from 'lucide-react-native';
 import React, { useEffect, useState } from 'react';
 import {
   ActivityIndicator,
+  Alert,
   Modal,
   Platform,
   Pressable,
@@ -20,7 +21,7 @@ import { Icon } from '@/components/ui/icon';
 import { Text } from '@/components/ui/text';
 import { ScreenHeader } from '@/components/screen-header';
 import { ScreenGutter } from '@/constants/layout';
-import { useChapterDetail } from '@/features/memoir/hooks';
+import { useChapterDetail, useDeleteChapter } from '@/features/memoir/hooks';
 
 // Life-Echo reading colors (from HTML reference)
 const READING_COLORS = {
@@ -536,6 +537,7 @@ export default function ChapterScreen() {
   const insets = useSafeAreaInsets();
   const { t } = useTranslation('memoir');
   const { data: chapter, isLoading } = useChapterDetail(id ?? '');
+  const deleteChapter = useDeleteChapter();
 
   const [settingsVisible, setSettingsVisible] = useState(false);
   const [fontSize, setFontSize] = useState<FontSize>('default');
@@ -568,6 +570,7 @@ export default function ChapterScreen() {
           alignItems: 'center',
           justifyContent: 'center',
           backgroundColor: bgColor,
+          gap: 16,
         }}
       >
         <Text
@@ -576,6 +579,25 @@ export default function ChapterScreen() {
         >
           {t('chapterReading.chapterNotFound')}
         </Text>
+        <Pressable
+          onPress={() => router.back()}
+          style={({ pressed }) => ({
+            paddingHorizontal: 20,
+            paddingVertical: 12,
+            borderRadius: 12,
+            backgroundColor: READING_COLORS.primary,
+            opacity: pressed ? 0.8 : 1,
+          })}
+          accessibilityRole="button"
+          accessibilityLabel={t('chapterReading.back')}
+        >
+          <Text
+            style={{ color: '#fff', fontSize: 16, fontWeight: '600' }}
+            selectable={false}
+          >
+            {t('chapterReading.back')}
+          </Text>
+        </Pressable>
       </View>
     );
   }
@@ -583,6 +605,25 @@ export default function ChapterScreen() {
   const sections = chapter.sections ?? [];
   const coverImageUrl = chapter.cover_image?.url ?? null;
 
+  const handleDeletePress = () => {
+    Alert.alert(
+      t('chapterReading.deleteChapter'),
+      t('chapterReading.confirmDeleteMessage'),
+      [
+        { text: t('chapterReading.cancel'), style: 'cancel' },
+        {
+          text: t('chapterReading.deleteChapterAction'),
+          style: 'destructive',
+          onPress: () => {
+            deleteChapter.mutate(chapter.id, {
+              onSuccess: () => router.back(),
+            });
+          },
+        },
+      ],
+    );
+  };
+
   return (
     <View style={{ flex: 1, backgroundColor: bgColor }}>
       <ScreenHeader
@@ -592,19 +633,38 @@ export default function ChapterScreen() {
         title={chapter.title}
         backAccessibilityLabel={t('chapterReading.back')}
         right={
-          <Pressable
+          <View style={{ flexDirection: 'row', alignItems: 'center', gap: 4 }}>
-            onPress={() => setSettingsVisible(true)}
+            <Pressable
-            style={({ pressed }) => ({
+              onPress={handleDeletePress}
-              padding: 8,
+              disabled={deleteChapter.isPending}
-              marginRight: -8,
+              style={({ pressed }) => ({
-              borderRadius: 9999,
+                padding: 8,
-              opacity: pressed ? 0.7 : 1,
+                borderRadius: 9999,
-            })}
+                opacity: pressed ? 0.7 : 1,
-            accessibilityLabel={t('chapterReading.settings')}
+              })}
-            accessibilityRole="button"
+              accessibilityLabel={t('chapterReading.deleteChapter')}
-          >
+              accessibilityRole="button"
-            <Icon as={Settings} size={24} color={READING_COLORS.primary} />
+            >
-          </Pressable>
+              <Icon
+                as={Trash2}
+                size={22}
+                color={READING_COLORS.onSurfaceVariant}
+              />
+            </Pressable>
+            <Pressable
+              onPress={() => setSettingsVisible(true)}
+              style={({ pressed }) => ({
+                padding: 8,
+                marginRight: -8,
+                borderRadius: 9999,
+                opacity: pressed ? 0.7 : 1,
+              })}
+              accessibilityLabel={t('chapterReading.settings')}
+              accessibilityRole="button"
+            >
+              <Icon as={Settings} size={24} color={READING_COLORS.primary} />
+            </Pressable>
+          </View>
         }
       />
 

app-expo/src/app/(tabs)/index.tsx

@@ -3,7 +3,8 @@ import React from 'react';
 import { Alert, Pressable, ScrollView, View } from 'react-native';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import { useTranslation } from 'react-i18next';
-import { CheckCheck, MessageCirclePlus, User } from 'lucide-react-native';
+import { Swipeable } from 'react-native-gesture-handler';
+import { MessageCirclePlus, Trash2, User } from 'lucide-react-native';
 
 import { Icon } from '@/components/ui/icon';
 import { Skeleton } from '@/components/ui/skeleton';
@@ -12,6 +13,7 @@ import { NetworkError } from '@/core/api/types';
 import {
   useConversations,
   useCreateConversation,
+  useDeleteConversation,
 } from '@/features/conversation/hooks';
 import type { ConversationListItem } from '@/features/conversation/types';
 
@@ -65,43 +67,13 @@ function GreetingCardSkeleton() {
   );
 }
 
-function StatusBadge({
-  status,
-  label,
-}: {
-  status: 'read' | 'unread';
-  label: string;
-}) {
-  const isPrimary = status === 'unread';
-  return (
-    <View className="flex-row items-center gap-1.5">
-      {status === 'read' && (
-        <Icon as={CheckCheck} className="text-primary" size={14} />
-      )}
-      {status === 'unread' && (
-        <View className="h-2 w-2 rounded-full bg-primary" />
-      )}
-      <Text
-        className={`text-xs font-semibold uppercase tracking-wider ${
-          isPrimary ? 'text-primary' : 'text-muted-foreground'
-        }`}
-      >
-        {label}
-      </Text>
-    </View>
-  );
-}
-
 function ConversationCard({
   item,
-  statusLabel,
   onPress,
 }: {
   item: ConversationListItem;
-  statusLabel: string;
   onPress: () => void;
 }) {
-  const status = item.unreadCount > 0 ? ('unread' as const) : ('read' as const);
   const avatarBg = item.isDefaultAssistant ? 'bg-primary' : 'bg-secondary';
   const avatarIconClass = item.isDefaultAssistant
     ? 'text-primary-foreground'
@@ -136,14 +108,56 @@ function ConversationCard({
         >
           {item.latestMessagePreview || ''}
         </Text>
-        <View className="mt-2">
-          <StatusBadge status={status} label={statusLabel} />
-        </View>
       </View>
     </Pressable>
   );
 }
 
+function SwipeableConversationCard({
+  item,
+  onPress,
+}: {
+  item: ConversationListItem;
+  onPress: () => void;
+}) {
+  const { t } = useTranslation('conversation');
+  const deleteConversation = useDeleteConversation();
+
+  const handleDelete = () => {
+    Alert.alert(t('deleteConversation'), t('confirmDeleteConversation'), [
+      { text: t('cancel'), style: 'cancel' },
+      {
+        text: t('delete'),
+        style: 'destructive',
+        onPress: () => deleteConversation.mutate(item.id),
+      },
+    ]);
+  };
+
+  const renderRightActions = () => (
+    <Pressable
+      onPress={handleDelete}
+      disabled={deleteConversation.isPending}
+      className="w-20 items-center justify-center rounded-xl bg-destructive active:opacity-80"
+      style={{ marginLeft: 4 }}
+    >
+      <Icon as={Trash2} className="text-destructive-foreground" size={24} />
+      <Text
+        className="mt-1 text-xs font-semibold text-destructive-foreground"
+        selectable={false}
+      >
+        {t('delete')}
+      </Text>
+    </Pressable>
+  );
+
+  return (
+    <Swipeable renderRightActions={renderRightActions} friction={2}>
+      <ConversationCard item={item} onPress={onPress} />
+    </Swipeable>
+  );
+}
+
 const SKELETON_COUNT = 3;
 
 export default function ConversationsScreen() {
@@ -277,12 +291,9 @@ export default function ConversationsScreen() {
                 </View>
                 <View className="gap-4">
                   {conversations.map((item) => (
-                    <ConversationCard
+                    <SwipeableConversationCard
                       key={item.id}
                       item={item}
-                      statusLabel={
-                        item.unreadCount > 0 ? t('unread') : t('read')
-                      }
                       onPress={() => handleConversationPress(item.id)}
                     />
                   ))}

app-expo/src/app/_layout.tsx

@@ -2,6 +2,7 @@ import { PortalHost } from '@rn-primitives/portal';
 import { Stack } from 'expo-router';
 import { StatusBar } from 'expo-status-bar';
 import React, { useEffect } from 'react';
+import { GestureHandlerRootView } from 'react-native-gesture-handler';
 import {
   SafeAreaProvider,
   initialWindowMetrics,
@@ -43,23 +44,25 @@ export default function RootLayout() {
   }, [setColorScheme]);
 
   return (
-    <SafeAreaProvider initialMetrics={initialWindowMetrics}>
+    <GestureHandlerRootView style={{ flex: 1 }}>
-      <AppProviders>
+      <SafeAreaProvider initialMetrics={initialWindowMetrics}>
-        <TypographyProvider>
+        <AppProviders>
-          <ThemeVariablesProvider>
+          <TypographyProvider>
-            <NavigationThemeProvider>
+            <ThemeVariablesProvider>
-              <StatusBar style={resolved === 'dark' ? 'light' : 'dark'} />
+              <NavigationThemeProvider>
-              <AnimatedSplashOverlay />
+                <StatusBar style={resolved === 'dark' ? 'light' : 'dark'} />
-              <Stack screenOptions={{ headerShown: false }}>
+                <AnimatedSplashOverlay />
-                <Stack.Screen name="(tabs)" />
+                <Stack screenOptions={{ headerShown: false }}>
-                <Stack.Screen name="(auth)" />
+                  <Stack.Screen name="(tabs)" />
-                <Stack.Screen name="(main)" />
+                  <Stack.Screen name="(auth)" />
-              </Stack>
+                  <Stack.Screen name="(main)" />
-              <PortalHost />
+                </Stack>
-            </NavigationThemeProvider>
+                <PortalHost />
-          </ThemeVariablesProvider>
+              </NavigationThemeProvider>
-        </TypographyProvider>
+            </ThemeVariablesProvider>
-      </AppProviders>
+          </TypographyProvider>
-    </SafeAreaProvider>
+        </AppProviders>
+      </SafeAreaProvider>
+    </GestureHandlerRootView>
   );
 }

app-expo/src/i18n/generated/resources.ts

@@ -15,7 +15,6 @@ interface Resources {
       profile: 'Profile';
     };
     theme: {
-      brand: 'Brand';
       default: 'Default';
     };
   };
@@ -64,17 +63,22 @@ interface Resources {
   conversation: {
     addMore: 'More';
     agentName: 'Life Echo';
+    cancel: 'Cancel';
     cancelRecording: 'Cancel recording';
     chatTitle: 'Conversation';
+    confirm: 'OK';
+    confirmDeleteConversation: 'Are you sure you want to delete this conversation? It cannot be recovered.';
     connectionConnected: 'Connected';
     connectionConnecting: 'Connecting...';
     connectionDisconnected: 'Disconnected';
+    createError: 'Unable to create conversation. Please check your network and try again.';
+    delete: 'Delete';
+    deleteConversation: 'Delete Conversation';
     emptyGreetingSubtitle: 'Chat with Echo and record your stories.';
     greetingTitle: 'Say Hello';
     inputPlaceholder: 'Type a message...';
     inputPlaceholderVoice: 'Type here or hold the mic to speak...';
     me: 'Me';
-    read: 'Read';
     recentChats: 'Recent Chats';
     recordingPermissionDenied: 'Microphone permission is required to record';
     send: 'Send';
@@ -83,8 +87,8 @@ interface Resources {
     switchToVoice: 'Switch to voice input';
     tapToEndRecording: 'Tap to end';
     tapToStartRecording: 'Tap to start recording';
-    unread: 'Unread';
     viewAll: 'View All';
+    voiceMessagePreview: 'Voice message';
   };
   explore: {};
   home: {};
@@ -95,8 +99,12 @@ interface Resources {
       backgroundColor: 'Background';
       bgPureWhite: 'White';
       bgSepia: 'Sepia';
+      cancel: 'Cancel';
       chapterNotFound: 'Chapter not found';
       close: 'Close';
+      confirmDeleteMessage: 'Are you sure you want to delete this chapter? You will no longer be able to view it, but the content will be kept for future reference.';
+      deleteChapter: 'Delete Chapter';
+      deleteChapterAction: 'Delete';
       fontSans: 'Sans';
       fontSerif: 'Serif';
       fontSize: 'Font Size';

app-expo/src/i18n/locales/en/conversation.json

@@ -1,6 +1,10 @@
 {
+  "confirmDeleteConversation": "Are you sure you want to delete this conversation? It cannot be recovered.",
   "createError": "Unable to create conversation. Please check your network and try again.",
   "confirm": "OK",
+  "cancel": "Cancel",
+  "delete": "Delete",
+  "deleteConversation": "Delete Conversation",
   "addMore": "More",
   "agentName": "Life Echo",
   "cancelRecording": "Cancel recording",
@@ -13,7 +17,6 @@
   "inputPlaceholder": "Type a message...",
   "inputPlaceholderVoice": "Type here or hold the mic to speak...",
   "me": "Me",
-  "read": "Read",
   "recentChats": "Recent Chats",
   "recordingPermissionDenied": "Microphone permission is required to record",
   "send": "Send",
@@ -22,7 +25,6 @@
   "switchToVoice": "Switch to voice input",
   "tapToEndRecording": "Tap to end",
   "tapToStartRecording": "Tap to start recording",
-  "unread": "Unread",
   "viewAll": "View All",
   "voiceMessagePreview": "Voice message"
 }

app-expo/src/i18n/locales/en/memoir.json

@@ -2,6 +2,10 @@
   "chapterLabel": "Chapter {{index}}",
   "chapterReading": {
     "back": "Back",
+    "cancel": "Cancel",
+    "confirmDeleteMessage": "Are you sure you want to delete this chapter? You will no longer be able to view it, but the content will be kept for future reference.",
+    "deleteChapter": "Delete Chapter",
+    "deleteChapterAction": "Delete",
     "backgroundColor": "Background",
     "bgPureWhite": "White",
     "bgSepia": "Sepia",

app-expo/src/i18n/locales/zh/conversation.json

@@ -1,6 +1,10 @@
 {
+  "confirmDeleteConversation": "确定要删除此对话吗？删除后无法恢复。",
   "createError": "无法创建对话，请检查网络连接或稍后重试",
   "confirm": "知道了",
+  "cancel": "取消",
+  "delete": "删除",
+  "deleteConversation": "删除对话",
   "addMore": "更多功能",
   "agentName": "岁月知己",
   "cancelRecording": "取消录音发送",
@@ -13,7 +17,6 @@
   "inputPlaceholder": "输入消息...",
   "inputPlaceholderVoice": "点击这里输入，或者按住左边说话...",
   "me": "我",
-  "read": "已读",
   "recentChats": "最近对话",
   "recordingPermissionDenied": "需要麦克风权限才能录音",
   "send": "发送",
@@ -22,7 +25,6 @@
   "switchToVoice": "切换到语音输入",
   "tapToEndRecording": "点击结束",
   "tapToStartRecording": "点击开始录音",
-  "unread": "未读",
   "viewAll": "查看全部",
   "voiceMessagePreview": "语音消息"
 }

app-expo/src/i18n/locales/zh/memoir.json

@@ -2,6 +2,10 @@
   "chapterLabel": "第 {{index}} 章",
   "chapterReading": {
     "back": "返回",
+    "cancel": "取消",
+    "confirmDeleteMessage": "确定要删除本章节吗？删除后您将无法再查看，但内容会保留供后续参考。",
+    "deleteChapter": "删除章节",
+    "deleteChapterAction": "删除",
     "backgroundColor": "背景色",
     "bgPureWhite": "白色",
     "bgSepia": "护眼",