fix(router): route casual chat to DeepSeek and reserve Cursor for page tasks

Default unmatched conversation to direct_chat, stop blanket Agent session continuation and generic Agent→Cursor promotion; fix WeChat page retry userPublishDir scope and simplify ChatPanel controls.

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

chat-intent-router.mjs

@@ -399,11 +399,9 @@ export function coerceRealtimeWebSkill(classification, text, { grantedSkills = [
 }
 
 function resolveRouterFallbackRoute(env, overrides = {}) {
-  const raw = overrides.fallbackRoute
+  return overrides.fallbackRoute
     ?? normalizeRoute(env?.MEMIND_CHAT_ROUTER_FALLBACK_ROUTE)
-    ?? CHAT_INTENT_ROUTE.AGENT;
-  // Timeout/parse failures must fail open to agent so realtime/tool tasks are not dropped.
-  return raw === CHAT_INTENT_ROUTE.DIRECT_CHAT ? CHAT_INTENT_ROUTE.AGENT : raw;
+    ?? CHAT_INTENT_ROUTE.DIRECT_CHAT;
 }
 
 const DEFAULT_ROUTER_TIMEOUT_MS = 1200;
@@ -1071,12 +1069,7 @@ export function classifyWithRules({
       reason: '消息包含非文本内容',
     }, { source: 'rule' }), decisionContext);
   }
-  if (
-    includeIntentPatterns &&
-    normalized &&
-    isMemoryRecallQuestion(normalized) &&
-    !hasPriorAgentConversation(sessionId, sessionMessageCount)
-  ) {
+  if (includeIntentPatterns && normalized && isMemoryRecallQuestion(normalized)) {
     return finalizeRouterClassification(normalizeClassification({
       route: CHAT_INTENT_ROUTE.DIRECT_CHAT,
       confidence: 0.98,
@@ -1091,16 +1084,6 @@ export function classifyWithRules({
       reason: faqMatch?.reason ?? '用户明确要求纯文字、不生成页面',
     }, { source: 'rule' }), decisionContext);
   }
-  if (hasPriorAgentConversation(sessionId, sessionMessageCount)) {
-    const reason = isAgentSessionContinueText(normalized)
-      ? 'Agent 会话确认/续聊'
-      : '延续已有 Agent 会话';
-    return finalizeRouterClassification(normalizeClassification({
-      route: CHAT_INTENT_ROUTE.AGENT,
-      confidence: 1,
-      reason,
-    }, { source: 'rule' }), decisionContext);
-  }
   if (includeIntentPatterns && normalized) {
     const faqMatch = matchDirectChatFaqRule(normalized);
     if (faqMatch) {
@@ -1111,6 +1094,35 @@ export function classifyWithRules({
       }, { source: 'rule' }), decisionContext);
     }
   }
+  if (
+    includeIntentPatterns &&
+    normalized &&
+    OBVIOUS_DIRECT_PATTERNS.some((pattern) => pattern.test(normalized))
+  ) {
+    return finalizeRouterClassification(normalizeClassification({
+      route: CHAT_INTENT_ROUTE.DIRECT_CHAT,
+      confidence: 0.95,
+      reason: '简单寒暄或连通性测试',
+    }, { source: 'rule' }), decisionContext);
+  }
+  if (
+    includeIntentPatterns &&
+    normalized &&
+    OBVIOUS_DIRECT_CHAT_PATTERNS.some((pattern) => pattern.test(normalized))
+  ) {
+    return finalizeRouterClassification(normalizeClassification({
+      route: CHAT_INTENT_ROUTE.DIRECT_CHAT,
+      confidence: 0.95,
+      reason: '纯文字创作或闲聊，无需执行任务',
+    }, { source: 'rule' }), decisionContext);
+  }
+  if (hasPriorAgentConversation(sessionId, sessionMessageCount) && isAgentSessionContinueText(normalized)) {
+    return finalizeRouterClassification(normalizeClassification({
+      route: CHAT_INTENT_ROUTE.AGENT,
+      confidence: 1,
+      reason: 'Agent 会话确认/续聊',
+    }, { source: 'rule' }), decisionContext);
+  }
   if (includeIntentPatterns && normalized && isPageDataDevIntent(normalized)) {
     return finalizeRouterClassification(normalizeClassification({
       route: CHAT_INTENT_ROUTE.AGENT,
@@ -1160,26 +1172,11 @@ export function classifyWithRules({
   if (includeIntentPatterns && normalized && isRealtimeInfoQuestion(normalized)) {
     return finalizeRouterClassification(buildRealtimeInfoClassification(), decisionContext);
   }
-  if (
-    includeIntentPatterns &&
-    normalized &&
-    OBVIOUS_DIRECT_PATTERNS.some((pattern) => pattern.test(normalized))
-  ) {
+  if (includeIntentPatterns && normalized) {
     return finalizeRouterClassification(normalizeClassification({
       route: CHAT_INTENT_ROUTE.DIRECT_CHAT,
-      confidence: 0.95,
-      reason: '简单寒暄或连通性测试',
-    }, { source: 'rule' }), decisionContext);
-  }
-  if (
-    includeIntentPatterns &&
-    normalized &&
-    OBVIOUS_DIRECT_CHAT_PATTERNS.some((pattern) => pattern.test(normalized))
-  ) {
-    return finalizeRouterClassification(normalizeClassification({
-      route: CHAT_INTENT_ROUTE.DIRECT_CHAT,
-      confidence: 0.95,
-      reason: '纯文字创作或闲聊，无需执行任务',
+      confidence: 0.72,
+      reason: '普通对话默认走轻量聊天',
     }, { source: 'rule' }), decisionContext);
   }
   return null;
@@ -1220,7 +1217,7 @@ export function createChatIntentRouter(options = {}) {
     });
   }
 
-  function buildFallbackClassification(reason = '规则未命中，走 skill 默认 Agent 通道') {
+  function buildFallbackClassification(reason = '规则未命中，默认轻量聊天') {
     return normalizeClassification({
       route: policy.fallbackRoute,
       confidence: 0.5,