fix: 第一轮修复 - 记忆管理/IoT操控/历史消息持久化/动作消息/链路优化/安全配置

- 修复记忆管理数据库连接不可用 (ai-core重编译+Unicode修复)
- 修复IoT子会话工具调用链路日志缺失
- 新增最终审查子会话(review_provider) 支持消息格式解析拆分
- 实现历史消息持久化(后端存储+前端分页加载)
- 前端新增动作消息(ActionMessage)类型和渲染
- 优化对话链路速度(非阻塞子会话+快速问候通道)
- JWT密钥环境变量化(无默认值启动panic)
- Token自动刷新机制(401拦截器+refresh接口)
- WebSocket指数退避重连(jitter+最大10次)
- localStorage清理一致性(cyrene_前缀+版本检查)
- IoT环境变量统一为IOT_SERVICE_URL

frontend/web/src/components/chat/MessageBubble.tsx

@@ -2,17 +2,18 @@ import { useState, useEffect, useRef, useCallback } from 'react';
 import { CyreneAvatar } from '@/components/persona/CyreneAvatar';
 import { useAuthStore } from '@/store/authStore';
 import { useSpeechSynthesis } from '@/hooks/useSpeechSynthesis';
-import type { MessageAttachment, MultiMessageItem, StreamSegment } from '@/types/chat';
+import type { MessageAttachment, MultiMessageItem, StreamSegment, MessageDisplayType } from '@/types/chat';
 import { ImageLightbox } from './ImageLightbox';
 
 interface MessageBubbleProps {
-  role: 'user' | 'assistant' | 'system';
+  role: 'user' | 'assistant' | 'system' | 'action';
   content: string;
   timestamp: number;
   isStreaming?: boolean;
   attachments?: MessageAttachment[];
   multiMessages?: MultiMessageItem[];
   streamSegments?: StreamSegment[];
+  msgType?: MessageDisplayType;
 }
 
 /**
@@ -139,8 +140,24 @@ function AIMessageActions({ content }: { content: string }) {
   );
 }
 
-export function MessageBubble({ role, content, timestamp, isStreaming, attachments, multiMessages, streamSegments }: MessageBubbleProps) {
+export function MessageBubble({
+  role,
+  content,
+  timestamp,
+  isStreaming,
+  attachments,
+  multiMessages,
+  streamSegments,
+  msgType,
+}: MessageBubbleProps) {
   const isUser = role === 'user';
+  const isAction = role === 'action' || msgType === 'action';
+
+  // 动作消息使用独立的渲染方式
+  if (isAction) {
+    return <ActionMessageBubble content={content} timestamp={timestamp} />;
+  }
+
   const [lightboxIndex, setLightboxIndex] = useState<number | null>(null);
   const time = new Date(timestamp).toLocaleTimeString('zh-CN', {
     hour: '2-digit',
@@ -263,6 +280,27 @@ export function MessageBubble({ role, content, timestamp, isStreaming, attachmen
   );
 }
 
+/** 动作消息气泡 — 灰色/斜体/居中，视觉上与聊天消息区分 */
+function ActionMessageBubble({ content, timestamp }: { content: string; timestamp: number }) {
+  const time = new Date(timestamp).toLocaleTimeString('zh-CN', {
+    hour: '2-digit',
+    minute: '2-digit',
+  });
+
+  return (
+    <div className="flex justify-center px-4 py-1 animate-fadeIn">
+      <div className="max-w-[70%] text-center">
+        <p className="text-xs text-gray-400 dark:text-gray-500 italic leading-relaxed whitespace-pre-wrap break-words">
+          <span className="select-none text-gray-300 dark:text-gray-600">~ </span>
+          {content}
+          <span className="select-none text-gray-300 dark:text-gray-600"> ~</span>
+        </p>
+        <p className="text-[10px] text-gray-300 dark:text-gray-600 mt-0.5">{time}</p>
+      </div>
+    </div>
+  );
+}
+
 /** 图片缩略图组件 */
 function ImageThumbnail({
   attachment,