feat(web): render chat wait-state and structured error actions in bubbles

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

web/src/components/chat/MessageBubble.tsx

@@ -1,22 +1,58 @@
-import React from 'react';
-import { ChatMessage } from '../../types/workbench';
+import React, { useMemo, useState } from 'react';
+import { ChatErrorInfo, ChatMessage } from '../../types/workbench';
 import { PhaseEventStrip } from './PhaseEventStrip';
 import { RecommendedCaseCard } from './RecommendedCaseCard';
 import { InteractiveCard } from './InteractiveCard';
-import { FileText, Bot, User } from 'lucide-react';
+import { FileText, Bot, User, Loader2, AlertTriangle, Copy, Check } from 'lucide-react';
+import { renderInlineMarkdown } from '../../engine/renderMarkdown';
 
 export interface MessageBubbleProps {
   message: ChatMessage;
   onOpenCase?: (docId: string) => void;
   onCardAction?: (cardId: string, actionId: string, payload?: any) => void;
+  /** 结构化错误 / 已停止会话上的手动恢复动作：重试 / 继续任务 / 重新开始 / 重新发送 */
+  onErrorAction?: (messageId: string, action: 'retry' | 'continue' | 'restart') => void;
+}
+
+const ERROR_ACTION_LABEL: Record<'retry' | 'continue' | 'restart', string> = {
+  retry: '重试',
+  continue: '继续任务',
+  restart: '重新开始',
+};
+
+/** 拼接一行紧凑诊断信息：code · phaseId · upstream · requestId，自动省略空字段 */
+function buildDiagLine(errorInfo: ChatErrorInfo): string {
+  return [errorInfo.code, errorInfo.phaseId, errorInfo.upstream, errorInfo.requestId]
+    .filter((part): part is string => !!part && part.trim().length > 0)
+    .join(' · ');
 }
 
 export const MessageBubble: React.FC<MessageBubbleProps> = ({
   message,
   onOpenCase,
   onCardAction,
+  onErrorAction,
 }) => {
   const isUser = message.role === 'user';
+  const status = message.status;
+  const isWaiting =
+    !isUser && (status === 'pending' || status === 'streaming_status' || status === 'auto_retrying');
+  const isFailed = !isUser && status === 'failed' && !!message.errorInfo;
+  const isCancelled = !isUser && status === 'cancelled';
+  const hasContent = !!message.content && message.content.trim().length > 0;
+  const [diagCopied, setDiagCopied] = useState(false);
+
+  const renderedHtml = useMemo(
+    () => renderInlineMarkdown(message.content || '', { preserveNewlines: true }),
+    [message.content]
+  );
+
+  const handleCopyDiag = () => {
+    if (!message.errorInfo) return;
+    navigator.clipboard.writeText(JSON.stringify(message.errorInfo));
+    setDiagCopied(true);
+    setTimeout(() => setDiagCopied(false), 1500);
+  };
 
   return (
     <div
@@ -68,7 +104,7 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
           {/* 发送人与意图标签 */}
           <div style={{ display: 'flex', alignItems: 'center', gap: '6px', fontSize: '11px', color: 'var(--text-faint)' }}>
             <span style={{ fontWeight: 600, color: 'var(--text-muted)' }}>
-              {isUser ? message.authorName || '我' : '水木东方协同参谋'}
+              {isUser ? message.authorName || '我' : '项目助手'}
             </span>
             <span>{message.timestamp}</span>
             {message.intentTag && (
@@ -116,20 +152,142 @@ export const MessageBubble: React.FC<MessageBubbleProps> = ({
 
           {/* 主体卡片 */}
           <div
+            className={isUser ? 'chat-bubble chat-bubble-user' : 'chat-bubble chat-bubble-assistant'}
             style={{
               padding: '12px 14px',
               borderRadius: isUser ? '14px 4px 14px 14px' : '4px 14px 14px 14px',
-              background: isUser ? 'var(--brand-500)' : 'var(--bg-panel)',
+              background: isUser ? 'var(--brand-500)' : isFailed ? 'var(--danger-bg)' : 'var(--bg-panel)',
               color: isUser ? '#ffffff' : 'var(--text-strong)',
-              border: isUser ? 'none' : '1px solid var(--border)',
+              border: isUser ? 'none' : isFailed ? '1px solid var(--danger)' : '1px solid var(--border)',
               boxShadow: isUser ? '0 2px 8px rgba(79, 107, 255, 0.25)' : 'var(--shadow-xs)',
               fontSize: '13.5px',
               lineHeight: 1.6,
               wordBreak: 'break-word',
-              whiteSpace: 'pre-wrap',
+              whiteSpace: 'normal',
+              maxWidth: '100%',
+              overflowX: 'auto',
             }}
           >
-            {message.content}
+            {isFailed && message.errorInfo ? (
+              /* 失败态：白话标题 + 一行诊断 + 复制诊断 + 分型恢复动作 */
+              <div style={{ display: 'flex', flexDirection: 'column', gap: '8px' }}>
+                <div
+                  style={{
+                    display: 'flex',
+                    alignItems: 'flex-start',
+                    gap: '6px',
+                    color: 'var(--danger)',
+                    fontWeight: 700,
+                    fontSize: '13px',
+                  }}
+                >
+                  <AlertTriangle size={15} style={{ flexShrink: 0, marginTop: '1px' }} />
+                  <span>{message.errorInfo.userMessage}</span>
+                </div>
+
+                {buildDiagLine(message.errorInfo) && (
+                  <div
+                    style={{
+                      fontSize: '11px',
+                      color: 'var(--text-faint)',
+                      fontFamily: 'var(--font-mono)',
+                      wordBreak: 'break-all',
+                    }}
+                  >
+                    {buildDiagLine(message.errorInfo)}
+                  </div>
+                )}
+
+                <div style={{ display: 'flex', flexWrap: 'wrap', gap: '8px', marginTop: '2px' }}>
+                  <button
+                    onClick={handleCopyDiag}
+                    style={{
+                      display: 'flex',
+                      alignItems: 'center',
+                      gap: '5px',
+                      padding: '5px 10px',
+                      borderRadius: 'var(--r-sm)',
+                      fontSize: '11.5px',
+                      fontWeight: 500,
+                      background: 'var(--bg-subtle)',
+                      color: 'var(--text-muted)',
+                      border: '1px solid var(--border)',
+                      cursor: 'pointer',
+                    }}
+                  >
+                    {diagCopied ? <Check size={12} /> : <Copy size={12} />}
+                    <span>{diagCopied ? '已复制' : '复制诊断信息'}</span>
+                  </button>
+
+                  {message.errorInfo.actions?.map((action) => (
+                    <button
+                      key={action}
+                      onClick={() => onErrorAction?.(message.id, action)}
+                      style={{
+                        padding: '5px 12px',
+                        borderRadius: 'var(--r-sm)',
+                        fontSize: '11.5px',
+                        fontWeight: 600,
+                        background: 'var(--brand-500)',
+                        color: '#ffffff',
+                        border: 'none',
+                        boxShadow: '0 2px 6px rgba(79, 107, 255, 0.3)',
+                        cursor: 'pointer',
+                      }}
+                    >
+                      {ERROR_ACTION_LABEL[action]}
+                    </button>
+                  ))}
+                </div>
+              </div>
+            ) : isCancelled ? (
+              /* 已停止态：静音提示 + 可选重新发送 */
+              <div style={{ display: 'flex', alignItems: 'center', gap: '10px', flexWrap: 'wrap' }}>
+                <span style={{ color: 'var(--text-faint)', fontSize: '13px' }}>已停止生成</span>
+                {onErrorAction && (
+                  <button
+                    onClick={() => onErrorAction(message.id, 'retry')}
+                    style={{
+                      padding: '4px 10px',
+                      borderRadius: 'var(--r-sm)',
+                      fontSize: '11.5px',
+                      fontWeight: 500,
+                      background: 'var(--bg-subtle)',
+                      color: 'var(--brand-600)',
+                      border: '1px solid var(--brand-100)',
+                      cursor: 'pointer',
+                    }}
+                  >
+                    重新发送
+                  </button>
+                )}
+              </div>
+            ) : (
+              <>
+                {isWaiting && (
+                  /* 等待态：脉冲小图标 + 当前阶段文案，禁止把空正文当成成功渲染 */
+                  <div
+                    style={{
+                      display: 'flex',
+                      alignItems: 'center',
+                      gap: '8px',
+                      color: 'var(--brand-500)',
+                      fontSize: '13px',
+                      marginBottom: hasContent ? '8px' : 0,
+                    }}
+                  >
+                    <Loader2 size={14} className="animate-spin-fast" />
+                    <span>{message.livePhaseLabel || '助手正在处理…'}</span>
+                  </div>
+                )}
+                {(!isWaiting || hasContent) && (
+                  <div
+                    className="chat-md-body"
+                    dangerouslySetInnerHTML={{ __html: renderedHtml }}
+                  />
+                )}
+              </>
+            )}
 
             {/* 时序进度流条 */}
             {message.phaseEvents && <PhaseEventStrip events={message.phaseEvents} />}