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

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",