fix(workspace): 调整输入区与消息展示逻辑

- 输入框新增返回欢迎页按钮

- 人类消息展示保留原始换行

- 调整引用刷新策略与中英文文案

frontend/src/components/workspace/input-box.tsx

@@ -970,6 +970,14 @@ export function InputBox({
                 />
               </div>
             )}
+            {!showWelcomeStyle && (
+              <div className="shrink-0 h-full">
+                <ExitChattingButton
+                  router={router}
+                  threadId={threadIdFromProps}
+                />
+              </div>
+            )}
             <div ref={attachmentsButtonTourRef} className="shrink-0 h-full">
               <AddAttachmentsButton />
             </div>
@@ -1292,6 +1300,53 @@ function HistoryButton({
     </Tooltip>
   );
 }
+
+function ExitChattingButton({
+  className,
+  router,
+  threadId,
+}: {
+  className?: string;
+  router: AppRouterInstance;
+  threadId: string;
+}) {
+  const { t } = useI18n();
+  return (
+    <Tooltip content={t.inputBox.welcome}>
+      <WorkspaceToolButton
+        className={cn(
+          "text-ws-base-1 hover:text-ws-interactive-primary",
+          className,
+        )}
+        onClick={() =>
+          router.replace(`/workspace/chats/${threadId}?is_chatting=false`)
+        }
+      >
+        <svg
+          className="transition-[color] duration-200"
+          width="18"
+          height="18"
+          viewBox="0 0 18 18"
+          fill="none"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <circle
+            className="stroke-current transition-[stroke] duration-200"
+            cx="9"
+            cy="9"
+            r="8.5"
+          />
+          <path
+            className="stroke-current transition-[stroke] duration-200"
+            d="M6 9H12"
+            strokeLinecap="round"
+            strokeLinejoin="round"
+          />
+        </svg>
+      </WorkspaceToolButton>
+    </Tooltip>
+  );
+}
 // 启动iframeSkillDialog
 function IframeSkillDialogButton({
   className,

frontend/src/components/workspace/messages/message-list-item.tsx

@@ -39,7 +39,6 @@ import {
 } from "@/core/messages/utils";
 import { useRehypeSplitWordsIntoSpans } from "@/core/rehype";
 import { materializeSkillYaml } from "@/core/skills";
-import { humanMessagePlugins } from "@/core/streamdown";
 import { dispatchMentionReference } from "@/core/threads/reference-events";
 import { cn } from "@/lib/utils";
 
@@ -225,13 +224,9 @@ function MessageContent_({
   if (isHuman) {
     const shouldRenderSummaryCollapse = isSummaryMessage && summaryBody;
     const messageResponse = contentToDisplay ? (
-      <AIElementMessageResponse
+      <div className="whitespace-break-spaces break-words">
-        remarkPlugins={humanMessagePlugins.remarkPlugins}
-        rehypePlugins={humanMessagePlugins.rehypePlugins}
-        components={components}
-      >
         {contentToDisplay}
-      </AIElementMessageResponse>
+      </div>
     ) : null;
     return (
       <div className={cn("ml-auto flex flex-col gap-2", className)}>
@@ -250,13 +245,9 @@ function MessageContent_({
                 : t.toolCalls.expandContent}
             </summary>
             <AIElementMessageContent className="w-fit border-t">
-              <AIElementMessageResponse
+              <div className="whitespace-break-spaces break-words">
-                remarkPlugins={humanMessagePlugins.remarkPlugins}
-                rehypePlugins={humanMessagePlugins.rehypePlugins}
-                components={components}
-              >
                 {summaryBody}
-              </AIElementMessageResponse>
+              </div>
             </AIElementMessageContent>
           </details>
         )}

frontend/src/core/artifacts/references.ts

@@ -32,7 +32,6 @@ export function useReferenceFiles(threadId: string | undefined) {
     queryKey: ["references", "list", threadId],
     queryFn: () => listReferenceFiles(threadId ?? ""),
     enabled: Boolean(threadId),
-    refetchInterval: 5000,
+    refetchOnWindowFocus: false,
-    refetchOnWindowFocus: true,
   });
 }

frontend/src/core/i18n/locales/en-US.ts

@@ -86,6 +86,7 @@ export const enUS: Translations = {
       "Please note, this feature will consume tokens. Ensure your account balance is greater than 200 credits.",
     addAttachments: "Add attachments",
     history: "History",
+    welcome:"Welcome",
     selectSkill: "Select Skill",
     mode: "Mode",
     flashMode: "Flash",

frontend/src/core/i18n/locales/types.ts

@@ -75,6 +75,7 @@ export interface Translations {
     createSkillPrompt: string;
     addAttachments: string;
     history: string;
+    welcome:string;
     selectSkill: string;
     mode: string;
     flashMode: string;

frontend/src/core/i18n/locales/zh-CN.ts

@@ -87,6 +87,7 @@ export const zhCN: Translations = {
       "请注意，此功能将消耗token，请保证账户余额大于200可学豆。",
     addAttachments: "添加附件",
     history: "历史记录",
+    welcome:"欢迎页",
     selectSkill: "选择Skill",
     mode: "模式",
     flashMode: "闪速",
@@ -262,7 +263,7 @@ export const zhCN: Translations = {
     noArtifactSelectedDescription: "请选择一个生成文件以查看详情",
     exitDialogTitle: "提示",
     exitDialogDescription:
-      "历史记录每七天自动删除，现在将返回欢迎页，是否继续？",
+      "每七天自动删除。现在将返回欢迎页且清空聊天消息，是否继续？",
     exitDialogConfirm: "确定",
     selectedSkillLoadFailed: "技能加载失败",
     unknownErrorRetry: "发生了未知错误，请稍后重试。",

frontend/src/core/messages/utils.ts

@@ -414,12 +414,9 @@ export function stripPriorityHintSuffix(content: string): string {
  * - Split Chinese-numbered items (e.g. "1）...") into separate paragraphs.
  */
 export function normalizeHumanMessageDisplayText(content: string): string {
-  return content
+  // Preserve human input as-is for display; only decode escaped newlines
-    .replace(/\\n/g, "\n")
+  // and normalize CRLF/CR to LF so line breaks render consistently.
-    .replace(/\r\n?/g, "\n")
+  return content.replace(/\\n/g, "\n").replace(/\r\n?/g, "\n");
-    .replace(/\n(?=\d+[）)]\s*)/g, "\n\n")
-    .replace(/\n{3,}/g, "\n\n")
-    .trim();
 }
 
 export function parseUploadedFiles(content: string): FileInMessage[] {