feat(mindspace): 0630004 空间 UI、聊天连接、微信分享与 Agent 能力

含 MindSpace 三列布局与统计修复、聊天加载态与连接降级、平台页脚标记与 og:site_name 微信卡片、勾选资料删除 Agent 接口及内部话术过滤。

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

conversation-display.test.mjs

@@ -2,7 +2,7 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 
 import { buildAutoChatSkillPrefix, stripKnownChatSkillPrompt } from './chat-skills.mjs';
-import { deriveUserFacingText } from './conversation-display.mjs';
+import { deriveUserFacingText, deriveAssistantFacingText } from './conversation-display.mjs';
 
 test('stripKnownChatSkillPrompt removes generate-page preface', () => {
   const userText = '帮我根据这些图片生成一个主题页面，页面要做得精美一点';
@@ -24,3 +24,15 @@ test('deriveUserFacingText removes routing hint and skill preface from agent pay
   ].join('\n');
   assert.equal(deriveUserFacingText(agentPayload), userText);
 });
+
+test('deriveAssistantFacingText hides skill/process narration without a deliverable link', () => {
+  const internal =
+    '好的，John！注意到技能更新了几个细节要求，比如页脚要用`data-mindspace-page-tag="platform-brand"`和`tkmind.cn`。我来为你重新生成全面增强版的AI机器人研究报告页面：';
+  assert.equal(deriveAssistantFacingText(internal), '');
+});
+
+test('deriveAssistantFacingText keeps user-facing replies with public links', () => {
+  const external =
+    '页面已生成：[AI 机器人研究报告 2026](https://m.tkmind.cn/MindSpace/john/public/ai-robot-report.html)';
+  assert.equal(deriveAssistantFacingText(external), external);
+});