feat(web): move agent status inline with typing indicator for better UX

Instead of showing agent status in a separate panel below the chat,
display it inline beneath the typing dots ("...") in the message flow.
The dots remain the primary waiting indicator; agent status appears
below as supplementary context during specialist agent invocations.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/web-client/src/features/chat/presentation/components/ChatWindow.tsx

@@ -2,14 +2,13 @@ import { useRef, useEffect } from 'react';
 import { MessageBubble } from './MessageBubble';
 import { InputArea } from './InputArea';
 import { TypingIndicator } from './TypingIndicator';
-import { AgentStatusIndicator } from './AgentStatusIndicator';
 import { useChatStore } from '../stores/chatStore';
 import { useChat } from '../hooks/useChat';
 import { MessageSquare, Menu } from 'lucide-react';
 
 export function ChatWindow() {
   const messagesEndRef = useRef<HTMLDivElement>(null);
-  const { messages, currentConversationId, isStreaming, streamContent, sidebarOpen, toggleSidebar } = useChatStore();
+  const { messages, currentConversationId, isStreaming, streamContent, sidebarOpen, toggleSidebar, activeAgents, coordinatorPhase } = useChatStore();
   const {
     sendMessage,
     pendingFiles,
@@ -19,10 +18,10 @@ export function ChatWindow() {
     removeFile,
   } = useChat();
 
-  // Auto-scroll to bottom
+  // Auto-scroll to bottom (including when agent status changes)
   useEffect(() => {
     messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' });
-  }, [messages, streamContent]);
+  }, [messages, streamContent, activeAgents, coordinatorPhase]);
 
   const currentMessages = currentConversationId
     ? messages[currentConversationId] || []
@@ -81,9 +80,8 @@ export function ChatWindow() {
         )}
       </div>
 
-      {/* Agent status + Input area */}
+      {/* Input area */}
       <div className="border-t border-secondary-200 bg-white p-4">
-        <AgentStatusIndicator />
         <div className="max-w-3xl mx-auto">
           <InputArea
             onSend={sendMessage}

packages/web-client/src/features/chat/presentation/components/TypingIndicator.tsx

@@ -1,6 +1,28 @@
-import { Bot } from 'lucide-react';
+import { Bot, Loader2, CheckCircle2, Brain } from 'lucide-react';
+import { clsx } from 'clsx';
+import { useChatStore } from '../stores/chatStore';
+
+const AGENT_DISPLAY_NAMES: Record<string, string> = {
+  policy_expert: '政策专家',
+  assessment_expert: '评估专家',
+  strategist: '策略顾问',
+  objection_handler: '异议处理专家',
+  case_analyst: '案例分析师',
+  memory_manager: '记忆管理',
+};
+
+const PHASE_DISPLAY: Record<string, string> = {
+  analyzing: '正在分析问题...',
+  orchestrating: '正在协调专家团队...',
+  synthesizing: '正在综合分析结果...',
+  evaluating: '正在进行质量检查...',
+};
 
 export function TypingIndicator() {
+  const { activeAgents, completedAgents, coordinatorPhase, coordinatorMessage } = useChatStore();
+
+  const hasAgentActivity = activeAgents.length > 0 || coordinatorPhase !== null;
+
   return (
     <div className="flex gap-3 message-enter">
       {/* Avatar */}
@@ -8,13 +30,74 @@ export function TypingIndicator() {
         <Bot className="w-4 h-4 text-secondary-600" />
       </div>
 
-      {/* Typing dots */}
-      <div className="bg-secondary-100 rounded-2xl rounded-tl-sm px-4 py-3">
-        <div className="flex items-center gap-1">
-          <span className="w-2 h-2 bg-secondary-400 rounded-full typing-dot" />
-          <span className="w-2 h-2 bg-secondary-400 rounded-full typing-dot" />
-          <span className="w-2 h-2 bg-secondary-400 rounded-full typing-dot" />
+      {/* Content area */}
+      <div className="space-y-2 max-w-[80%]">
+        {/* Typing dots — always shown as primary indicator */}
+        <div className="bg-secondary-100 rounded-2xl rounded-tl-sm px-4 py-3">
+          <div className="flex items-center gap-1">
+            <span className="w-2 h-2 bg-secondary-400 rounded-full typing-dot" />
+            <span className="w-2 h-2 bg-secondary-400 rounded-full typing-dot" />
+            <span className="w-2 h-2 bg-secondary-400 rounded-full typing-dot" />
+          </div>
         </div>
+
+        {/* Agent status — shown below dots when there's activity */}
+        {hasAgentActivity && (
+          <div className="agent-status-enter rounded-xl bg-secondary-50 border border-secondary-200 px-3 py-2.5 space-y-1.5">
+            {/* Coordinator phase */}
+            {coordinatorPhase && (
+              <div className="flex items-center gap-2 text-xs text-secondary-600">
+                <Brain className="w-3.5 h-3.5 text-primary-500 agent-pulse flex-shrink-0" />
+                <span className="text-primary-600 font-medium">
+                  {PHASE_DISPLAY[coordinatorPhase] || coordinatorMessage}
+                </span>
+              </div>
+            )}
+
+            {/* Active agents */}
+            {activeAgents.map((agent) => (
+              <div
+                key={`${agent.messageId}-${agent.agentType}`}
+                className="agent-enter flex items-center gap-2 text-xs"
+              >
+                <Loader2 className="w-3.5 h-3.5 text-primary-500 animate-spin flex-shrink-0" />
+                <span className="text-secondary-700">
+                  <span className="font-medium">
+                    {AGENT_DISPLAY_NAMES[agent.agentType] || agent.agentName}
+                  </span>
+                  {agent.description && (
+                    <span className="text-secondary-500 ml-1">- {agent.description}</span>
+                  )}
+                </span>
+              </div>
+            ))}
+
+            {/* Completed agents (compact badges) */}
+            {completedAgents.length > 0 && activeAgents.length > 0 && (
+              <div className="flex flex-wrap gap-1.5 pt-1 border-t border-secondary-200">
+                {completedAgents.map((agent) => (
+                  <span
+                    key={`${agent.messageId}-${agent.agentType}-done`}
+                    className={clsx(
+                      'inline-flex items-center gap-1 text-xs px-1.5 py-0.5 rounded-full',
+                      agent.success
+                        ? 'bg-green-50 text-green-600'
+                        : 'bg-red-50 text-red-500',
+                    )}
+                  >
+                    <CheckCircle2 className="w-3 h-3" />
+                    {AGENT_DISPLAY_NAMES[agent.agentType] || agent.agentName}
+                    {agent.durationMs > 0 && (
+                      <span className="text-secondary-400">
+                        {(agent.durationMs / 1000).toFixed(1)}s
+                      </span>
+                    )}
+                  </span>
+                ))}
+              </div>
+            )}
+          </div>
+        )}
       </div>
     </div>
   );