fix: preserve page skill user input

chat-skills.mjs

@@ -240,6 +240,7 @@ export const CHAT_SKILL_DEFINITIONS = [
     icon: 'page',
     skillName: PUBLISH_SKILL_NAME,
     requiresPublish: true,
+    prefillOnly: true,
     promptKey: 'generate-page',
   },
 ];

chat-skills.test.mjs

@@ -130,7 +130,16 @@ test('buildChatSkillPrompt includes skill name for platform skills', () => {
 
 test('prefillOnly is set for open-ended chat skills', () => {
   assert.equal(CHAT_SKILL_DEFINITIONS.find((item) => item.id === 'web-search')?.prefillOnly, true);
-  assert.equal(CHAT_SKILL_DEFINITIONS.find((item) => item.id === 'generate-page')?.prefillOnly, undefined);
+  assert.equal(CHAT_SKILL_DEFINITIONS.find((item) => item.id === 'generate-page')?.prefillOnly, true);
+});
+
+test('generate-page selection preserves an existing news-page request for the next submit', () => {
+  const skill = CHAT_SKILL_DEFINITIONS.find((item) => item.id === 'generate-page');
+  const prompt = buildChatSkillPrompt(skill?.promptKey, skill?.skillName);
+  const task = '帮我整理今天的新闻做成页面';
+
+  assert.equal(skill?.prefillOnly, true);
+  assert.equal(mergeChatSkillPromptWithInput(prompt, task), `${prompt}${task}`);
 });
 
 test('buildAutoChatSkillPrefix enables web for news-like queries', () => {