feat: Phase 1+2 架构进化 — 连续思考链/主动消息决策/情感状态机/离线自主思考 (86文件)

Phase 1 (基础设施):
- ThinkChain 思考链连续性 + 差异化思考提示词 (persistent)
- AutonomousToolPolicy 工具安全策略 (safe/unsafe/conditional)
- MessageScheduler 自适应消息节奏 (Idle/Available/Busy)
- SessionEnrichmentStore 渐进式上下文丰富 (5层)
- ConversationBus 事件总线 + ResponseCache (dedup)
- pkg/logger 统一日志 + 所有 handler 替换 fmt.Printf
- NPE 守卫/链路优化/数据库表修复/Go workspace

Phase 2 (人格交互):
- EmotionState/EmotionTracker 情感状态机 (5种心情, 情绪衰减)
- ProactiveGuard 主动消息多维决策 (静默时段/紧急度/频率/校验)
- Gateway↔ai-core 在线状态感知链路 (presence notification)
- 离线思考频率控制 + 重连问候 + 离线消息排队

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

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

@@ -152,12 +152,46 @@ export function MessageBubble({
 }: MessageBubbleProps) {
   const isUser = role === 'user';
   const isAction = role === 'action' || msgType === 'action';
+  const isThinking = msgType === 'thinking';
+  const isToolProgress = msgType === 'tool_progress';
+  const isSystemInfo = msgType === 'system_info';
 
   // 动作消息使用独立的渲染方式
   if (isAction) {
     return <ActionMessageBubble content={content} timestamp={timestamp} />;
   }
 
+  // 思考内容 — 可折叠面板
+  if (isThinking) {
+    return (
+      <details className="mx-4 my-1 px-3 py-2 bg-gray-50 dark:bg-gray-800 rounded border border-gray-200 dark:border-gray-700 text-xs text-gray-500 dark:text-gray-400 italic">
+        <summary className="cursor-pointer select-none">昔涟正在思考...</summary>
+        <p className="mt-1 whitespace-pre-wrap">{content}</p>
+      </details>
+    );
+  }
+
+  // 工具进度 — 紧凑进度行
+  if (isToolProgress) {
+    return (
+      <div className="flex items-center gap-2 mx-4 my-1 px-3 py-1 text-xs text-gray-400 dark:text-gray-500">
+        <span className="inline-block w-2 h-2 rounded-full bg-blue-400 animate-pulse" />
+        <span>{content}</span>
+      </div>
+    );
+  }
+
+  // 系统信息 — 居中 Toast 风格
+  if (isSystemInfo) {
+    return (
+      <div className="flex justify-center my-1">
+        <span className="text-xs text-gray-400 dark:text-gray-500 bg-gray-100 dark:bg-gray-800 px-3 py-1 rounded-full">
+          {content}
+        </span>
+      </div>
+    );
+  }
+
   const [lightboxIndex, setLightboxIndex] = useState<number | null>(null);
   const time = new Date(timestamp).toLocaleTimeString('zh-CN', {
     hour: '2-digit',