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>

src/components/MessageList.tsx

@@ -1,7 +1,7 @@
 import { useRef, useState } from 'react';
 import { useUserAvatar } from '../hooks/useUserAvatar';
 import type { Message } from '../types';
-import { getDisplayText, getImageUrls, getRenderableImageUrls, getThinking } from '../utils/message';
+import { getDisplayText, getImageUrls, getRenderableImageUrls, getThinking, shouldShowChatMessage } from '../utils/message';
 import { getMessageSaveActions } from '../utils/messageSave';
 import { renderMarkdown } from '../utils/markdown';
 import { filterText } from '../utils/wordFilter';
@@ -365,8 +365,8 @@ export function MessageList({
   return (
     <div className="message-list">
       {messages.length === 0 && <ChatWelcomePanel compact={compact} />}
-      {messages.map((message, index) => {
-        const prev = index > 0 ? messages[index - 1] : undefined;
+      {messages.filter(shouldShowChatMessage).map((message, index, visibleMessages) => {
+        const prev = index > 0 ? visibleMessages[index - 1] : undefined;
         const showTime = shouldShowTimestamp(message.created, prev?.created);
         const anchorId = message.id ?? `msg-${index}-${message.role}-${message.created}`;
         return (