fix: stop chat hang after misrouted themed article requests

Route themed page/article prompts to agent orchestration, reject them
from portal direct chat, and finalize regular sessions to idle when a
direct chat turn already completed.

Co-authored-by: Cursor <cursoragent@cursor.com>

chat-intent-router.mjs

@@ -30,6 +30,8 @@ const OBVIOUS_AGENT_PATTERNS = [
   /MindSpace\/[^/\s]+\/public\/[^\s"'<>]+\.html/i,
   /(?:生成|创建|制作|做|写|设计|发布).{0,24}(?:H5|h5|HTML|html|网页|页面|活动页|宣传页|落地页|分享页)/u,
   /(?:H5|h5|HTML|html|网页|页面).{0,24}(?:生成|创建|制作|做|写|设计|发布)/u,
+  /(?:写|做|生成|制作|设计).{0,16}主题(?:页面|文章)/u,
+  /主题(?:页面|文章).{0,16}(?:写|做|生成|制作|设计)/u,
 ];
 
 const OBVIOUS_DIRECT_PATTERNS = [

chat-intent-router.test.mjs

@@ -36,6 +36,19 @@ test('classifyWithRules routes page generation to agent orchestration', () => {
   assert.equal(result.suggestedSkill, 'static-page-publish');
 });
 
+test('classifyWithRules routes themed article requests to agent orchestration', () => {
+  const result = classifyWithRules({
+    text: '帮我写个主题文章',
+    userMessage: {
+      role: 'user',
+      content: [{ type: 'text', text: '帮我写个主题文章' }],
+      metadata: { displayText: '帮我写个主题文章' },
+    },
+  });
+  assert.equal(result.route, CHAT_INTENT_ROUTE.AGENT);
+  assert.equal(result.suggestedSkill, 'static-page-publish');
+});
+
 test('classifyWithRules honors forceDeepReasoning bypass', () => {
   const result = classifyWithRules({
     text: '你好',

direct-chat-service.mjs

@@ -20,6 +20,8 @@ const TASK_EXECUTION_REQUIRED_PATTERNS = [
   /\b(file|page|html|docx|word|asset)\b.{0,40}\b(write|create|generate|publish|download|export|save|edit)\b/i,
   /(?:生成|创建|制作|做|写|设计|发布|导出|下载|保存|修改|编辑).{0,24}(?:页面|网页|HTML|html|H5|h5|文件|文档|Word|word|docx|下载页|公开页|分享页|落地页|活动页)/u,
   /(?:页面|网页|HTML|html|H5|h5|文件|文档|Word|word|docx|下载页|公开页|分享页|落地页|活动页).{0,24}(?:生成|创建|制作|做|写|设计|发布|导出|下载|保存|修改|编辑)/u,
+  /(?:写|做|生成|制作|设计).{0,16}主题(?:页面|文章)/u,
+  /主题(?:页面|文章).{0,16}(?:写|做|生成|制作|设计)/u,
   /MindSpace\/[^/\s]+\/public\/[^\s"'<>]+\.html/i,
 ];
 

direct-chat-service.test.mjs

@@ -205,6 +205,30 @@ test('direct chat rejects page generation tasks so the execution backend can han
   }), false);
 });
 
+test('direct chat rejects themed article page tasks without explicit html path', () => {
+  const service = createDirectChatService({
+    enabled: true,
+    userAuth: {},
+    llmProviderService: {},
+    sessionSnapshotService: {},
+  });
+
+  assert.equal(service.canHandle({
+    toolMode: 'chat',
+    userMessage: {
+      role: 'user',
+      content: [{ type: 'text', text: '帮我写个主题文章' }],
+    },
+  }), false);
+  assert.equal(service.explainCanHandle({
+    toolMode: 'chat',
+    userMessage: {
+      role: 'user',
+      content: [{ type: 'text', text: '帮我写个主题文章' }],
+    },
+  }).reason, 'task_execution_required');
+});
+
 test('direct chat allows llm-routed replies on regular agent sessions', () => {
   const service = createDirectChatService({
     enabled: true,

src/hooks/useTKMindChat.ts

@@ -82,6 +82,18 @@ function isDirectChatSessionId(sessionId?: string | null) {
   return typeof sessionId === 'string' && sessionId.startsWith(DIRECT_CHAT_SESSION_PREFIX);
 }
 
+function sessionFinishedViaPortalDirectChat(messages: Message[], userMessage: Message) {
+  const lastAssistant = [...messages].reverse().find((message) => message.role === 'assistant');
+  if (lastAssistant?.metadata?.source !== 'portal-direct-chat') return false;
+  const userText = getDisplayText(userMessage).trim();
+  const userId = userMessage.id;
+  return messages.some(
+    (message) =>
+      message.role === 'user' &&
+      (message.id === userId || getDisplayText(message).trim() === userText),
+  );
+}
+
 async function waitForAgentRun(runId: string): Promise<AgentRun> {
   return await waitForAgentRunWithDirectChatPreview(runId, {});
 }
@@ -1344,8 +1356,33 @@ export function useTKMindChat(
           activeRequestId.current = null;
           setChatState('idle');
         } else {
+          let finishedViaPortalDirectChat = false;
+          try {
+            const detail = await loadSessionDetail(activeSessionId);
+            if (submitToken === connectTokenRef.current) {
+              messagesRef.current = mergeConversationSnapshot(
+                messagesRef.current,
+                detail.messages,
+              );
+              messageHistoryLoadedCountRef.current = messagesRef.current.length;
+              setMessages(messagesRef.current);
+              setSession(detail.session);
+              finishedViaPortalDirectChat = sessionFinishedViaPortalDirectChat(
+                detail.messages,
+                userMessage,
+              );
+            }
+          } catch {
+            // Fall through to agent streaming when the snapshot is not ready yet.
+          }
           subscribeToSession(activeSessionId);
-          setChatState('streaming');
+          if (finishedViaPortalDirectChat) {
+            clearActiveRequestMissingTimer();
+            activeRequestId.current = null;
+            setChatState('idle');
+          } else {
+            setChatState('streaming');
+          }
         }
       } catch (err) {
         if (activeSessionId && isAmbiguousReplySubmitError(err)) {