fix(admin): 编辑消息/切换会话保护、行内编辑撤销与上传进度反馈

- 编辑旧消息会删除其后全部消息时,先弹确认告知影响范围
- 有待发送附件时切换会话,先确认再丢弃(避免静默删除已上传文件)
- EditableCell 保存成功后提供 6 秒内"撤销"入口(把旧值重新保存),
  重新编辑时自动清除
- 导入向导/重新上传显示上传进度条与百分比,不再"假死"
- AI 附件上传透传进度给附件列表
- 租赁合同上传显示按钮 loading 与上传百分比

apps/admin/src/components/AiChat/AiChatDrawer.tsx

@@ -189,11 +189,32 @@ const AiChatDrawer: React.FC<AiChatDrawerProps> = ({ open, onClose, onRequesting
 
   const switchConversation = useCallback(
     (key: string) => {
-      discardPendingAttachments();
-      if (isMobile) setSidebarOpen(false);
-      setActiveConversationKey(key);
+      const doSwitch = () => {
+        discardPendingAttachments();
+        if (isMobile) setSidebarOpen(false);
+        setActiveConversationKey(key);
+      };
+      // 有待发送的附件时先确认，避免静默删除已上传文件
+      if (uploadItems.length > 0) {
+        modal.confirm({
+          title: '切换会话将丢弃未发送的附件',
+          content: `当前有 ${uploadItems.length} 个已上传但未发送的附件，切换会话后将被删除，此操作不可恢复。`,
+          okText: '切换并丢弃',
+          okButtonProps: { danger: true },
+          cancelText: '留在当前会话',
+          onOk: doSwitch,
+        });
+        return;
+      }
+      doSwitch();
     },
-    [discardPendingAttachments, isMobile, setActiveConversationKey],
+    [
+      discardPendingAttachments,
+      isMobile,
+      modal,
+      setActiveConversationKey,
+      uploadItems.length,
+    ],
   );
 
   useEffect(

apps/admin/src/components/AiChat/api.ts

@@ -30,12 +30,19 @@ export const aiChatApi = {
         `${basePath}/${conversationId}/messages/${messageId}`,
       )
     ).data,
-  uploadAttachment: async (file: File): Promise<AiAttachment> => {
+  uploadAttachment: async (
+    file: File,
+    onProgress?: (percent: number) => void,
+  ): Promise<AiAttachment> => {
     const form = new FormData();
     form.append('file', file);
     return (
       await api.post<AiApiResponse<AiAttachment>>('/ai/chat/attachments', form, {
         timeout: 120_000,
+        onUploadProgress: (event) => {
+          if (!onProgress || !event.total) return;
+          onProgress(Math.min(Math.round((event.loaded / event.total) * 100), 100));
+        },
       })
     ).data;
   },

apps/admin/src/components/AiChat/useAiChatMessageActions.tsx

@@ -296,30 +296,46 @@ export function useAiChatMessageActions({
       setEditingMessageId(null);
       if (content === messageInfo.message.content) return;
 
-      setMessage(messageInfo.id, (info) => ({
-        message: {
-          ...info.message,
-          content,
-          metadata: { ...info.message.metadata, edited: true },
-        },
-      }));
+      // 编辑旧消息会删除其后的全部消息并重新生成，需先告知用户
       const index = messagesRef.current.findIndex((item) => item.id === messageInfo.id);
-      if (index >= 0) {
-        for (const item of messagesRef.current.slice(index + 1)) removeMessage(item.id);
+      const followingCount = index >= 0 ? messagesRef.current.length - index - 1 : 0;
+      const doEdit = () => {
+        setMessage(messageInfo.id, (info) => ({
+          message: {
+            ...info.message,
+            content,
+            metadata: { ...info.message.metadata, edited: true },
+          },
+        }));
+        if (index >= 0) {
+          for (const item of messagesRef.current.slice(index + 1)) removeMessage(item.id);
+        }
+        requestWithStatus({
+          message: content,
+          attachmentIds: [],
+          skillKey: activeConversation?.lockedSkillKey ?? null,
+          clientRequestId: crypto.randomUUID(),
+          reasoningEffort: deepThinking ? 'high' : null,
+          editMessageId: messageId,
+        });
+      };
+      if (followingCount > 0) {
+        modal.confirm({
+          title: '编辑消息将删除后续内容',
+          content: `编辑这条消息会删除其后的 ${followingCount} 条消息并重新生成回答，此操作不可恢复。`,
+          okText: '继续编辑',
+          cancelText: '取消',
+          onOk: doEdit,
+        });
+        return;
       }
-      requestWithStatus({
-        message: content,
-        attachmentIds: [],
-        skillKey: activeConversation?.lockedSkillKey ?? null,
-        clientRequestId: crypto.randomUUID(),
-        reasoningEffort: deepThinking ? 'high' : null,
-        editMessageId: messageId,
-      });
+      doEdit();
     },
     [
       activeConversation?.lockedSkillKey,
       activeId,
       deepThinking,
+      modal,
       removeMessage,
       requestWithStatus,
       setMessage,
@@ -426,7 +442,9 @@ export function useAiChatMessageActions({
       return;
     }
     try {
-      const uploaded = await aiChatApi.uploadAttachment(file);
+      const uploaded = await aiChatApi.uploadAttachment(file, (percent) => {
+        options.onProgress?.({ percent });
+      });
       setAttachments((items) => [...items, uploaded]);
       options.onSuccess?.(uploaded, file);
     } catch (error) {