fix(wechat): recognize news page intents and harden scheduled task delivery

Expand page.generate rules for post-page verbs and link-missing retries,
recover HTML artifacts when shadow LLM agrees, and stop marking scheduled
tasks failed when WeChat notification hits rate limits.

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

wechat/wechat-channel.test.mjs

@@ -42,6 +42,23 @@ test('classifyWechatIntent keeps scheduled automation on chat.general', () => {
   assert.equal(isPageGenerateIntent({ msgType: 'text', agentText: intent.text }), false);
 });
 
+test('classifyWechatIntent detects news page make requests', () => {
+  const intent = classifyWechatIntent({
+    msgType: 'text',
+    agentText: '帮我按照7.20号新闻格式，把今天新闻页面做出来',
+  });
+  assert.equal(intent.kind, 'page.generate');
+  assert.match(intent.topic, /新闻页面/);
+});
+
+test('classifyWechatIntent detects missing page link retries', () => {
+  const intent = classifyWechatIntent({
+    msgType: 'text',
+    agentText: '新闻页面链接没有生成',
+  });
+  assert.equal(intent.kind, 'page.generate');
+});
+
 test('classifyWechatIntent detects session.reset', () => {
   assert.equal(classifyWechatIntent({ msgType: 'text', agentText: '换话题' }).kind, 'session.reset');
   assert.equal(classifyWechatIntent({ msgType: 'text', agentText: '换新会话' }).kind, 'session.reset');