feat: 全链路优化 — 死锁修复、MD3主题、上下文持久化、群聊自然化、打字状态、知识库

**死锁根因修复**
- periodicThinkLoop:1015 orphaned lock → 删除（字段已原子化）
- RecordUserMessage 隔离为 recordMu
- atomic.Int64 替换 lastUserMessage/lastThinkTime 等

**MD3 / Android 17 主题**
- 毛玻璃卡片 (backdrop-filter)
- MD3 色彩令牌 (pink primary #f472b6)
- icons.js 独立矢量图标库 + 运行时 emoji 替换
- 无边框卡片、圆角按钮、阴影层次

**上下文持久化**
- AddMessage → saveToDB 异步写 PostgreSQL
- LoadFromDB 恢复 (admin-session-main + 懒加载)
- LLMMessage.Timestamp 字段

**群聊与适配器**
- group_ambient 模式: 非@消息让 LLM 自己判断是否插话
- 戳一戳动作消息总是回复
- NapCat 打字状态 (set_input_status, 最小3秒显示)
- HTTP API 配置 (http_url/http_token)

**知识库 & 防编造**
- knowledge.CanHandle 对 chat 意图也触发
- 关键词预筛选避免无关 embedding 调用
- persona + synthesizer 三重诚实规则
- 工具结果持久化到会话历史

**平台桥接器**
- detached:true Go进程独立存活
- ethend 重启自动接管已运行服务
- stop() 接管模式 taskkill/F/ PID
- Windows netstat 替代 fuser 获取 PID
- 重复适配器种子逻辑修复
- 失败转发日志 Direction: error

**崩溃诊断**
- crashlog 包 (Recover + WrapHTTP + LLMCall)
- /api/v1/debug/goroutines 端点
- thinker 操作日志 + 30s stats
- 日志写入 logs/ 目录持久化

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

backend/platform-bridge/cmd/main.go

@@ -185,7 +185,7 @@ func main() {
 				if err != nil {
 					msgLogger.Log(logging.LogEntry{
 						Timestamp:  time.Now(),
-						Direction:  "outgoing",
+						Direction:  "error",
 						Platform:   msg.Platform,
 						ChannelID:  msg.ChannelID,
 						SenderID:   msg.OriginalSenderUID,
@@ -196,7 +196,14 @@ func main() {
 			}()
 		}
 
+		// 戳一戳/动作消息：总是回复
+		isPoke := strings.Contains(msg.Content, "【动作】")
+
 		switch {
+		case isPoke:
+			msg.RouteType = "normal"
+			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, imageURLs, videoURLs, voiceURLs, isAdmin)
+
 		case isMessageHistorical(msg, router):
 			msg.RouteType = "silent"
 			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
@@ -224,10 +231,12 @@ func main() {
 			response = &bridge.UnifiedResponse{Messages: []bridge.ResponseMessage{{DisplayType: "silent"}}, Platform: msg.Platform}
 
 		case isSilent:
-			msg.RouteType = "silent"
+			// 群聊环境消息：让 LLM 自己判断是否值得插话
+			msg.RouteType = "group_ambient"
+			// 同时后台记录（记忆提取）
 			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
 			fireSilent(namespace, imageURLs, videoURLs, voiceURLs)
-			response = &bridge.UnifiedResponse{Messages: []bridge.ResponseMessage{{DisplayType: "silent"}}, Platform: msg.Platform}
+			response, routeErr = forwardToAICore(cfg, msg, "group_ambient", chatUserID, groupSessionID, imageURLs, videoURLs, voiceURLs, isAdmin)
 
 		default:
 			msg.RouteType = "normal"
@@ -237,7 +246,7 @@ func main() {
 		if routeErr != nil {
 			msgLogger.Log(logging.LogEntry{
 				Timestamp:  time.Now(),
-				Direction:  "outgoing",
+				Direction:  "error",
 				Platform:   msg.Platform,
 				ChannelID:  msg.ChannelID,
 				SenderID:   msg.OriginalSenderUID,
@@ -282,9 +291,13 @@ func main() {
 	mux := http.NewServeMux()
 	bh := handler.NewBridgeHandler(router)
 	bh.SetLogFunc(func(platform, channelID, senderID, content string, success bool) {
+		dir := "outgoing"
+		if !success {
+			dir = "error"
+		}
 		msgLogger.Log(logging.LogEntry{
 			Timestamp:  time.Now(),
-			Direction:  "outgoing",
+			Direction:  dir,
 			Platform:   platform,
 			ChannelID:  channelID,
 			SenderID:   senderID,
@@ -439,6 +452,14 @@ func startOBv11Readers(router *bridge.PlatformRouter) {
 								toSend = append(toSend, rm)
 							}
 						}
+						// NapCat 输入状态：私聊时在发送前显示"正在输入"
+						if messageType == "private" {
+							if cur, err := router.GetAdapter(adapterKey); err == nil {
+								if qa, ok := cur.(*qqadapter.Adapter); ok {
+									qa.SetTypingStatus(userID, 1)
+								}
+							}
+						}
 						interval := time.Duration(adapter.SendIntervalMs()) * time.Millisecond
 						if interval <= 0 {
 							interval = 2 * time.Second
@@ -470,6 +491,14 @@ func startOBv11Readers(router *bridge.PlatformRouter) {
 								fmt.Printf("[qq:%s] send msg error: %v\n", adapterKey, sendErr)
 							}
 						}
+						// NapCat: clear typing indicator
+						if messageType == "private" {
+							if cur, err := router.GetAdapter(adapterKey); err == nil {
+								if qa, ok := cur.(*qqadapter.Adapter); ok {
+									qa.SetTypingStatus(userID, 0)
+								}
+							}
+						}
 					}
 				}
 			}()
@@ -501,13 +530,17 @@ func createAdapters(cfg *config.Config, store *config.Store) []bridge.PlatformAd
 	}
 
 	// Seed default adapters for platforms that have no stored config.
+	// Track platform types (not config names) to avoid duplicate adapters.
 	seededTypes := map[string]bool{}
 	for _, a := range adapters {
 		seededTypes[a.PlatformName()] = true
 	}
+	for _, stored := range store.List() {
+		seededTypes[stored.Platform] = true // stored.Platform is the type (e.g. "obv11")
+	}
 	defaultPlatforms := []string{"obv11", "telegram", "webhook", "wechat", "feishu", "discord"}
 	for _, name := range defaultPlatforms {
-		if seen[name] || seededTypes[name] {
+		if seededTypes[name] {
 			continue
 		}
 		fields := mergeFields(cfg, name, nil)
@@ -548,7 +581,14 @@ func createSingleAdapter(cfg *config.Config, platform, configName, configID stri
 				sendIntervalMs = n
 			}
 		}
-		return qqadapter.NewAdapter(configID, configName, mode, port, token, remoteURL, sendIntervalMs)
+		adapter := qqadapter.NewAdapter(configID, configName, mode, port, token, remoteURL, sendIntervalMs)
+		// Optional HTTP API configuration (for typing status, etc.)
+		httpURL := fields["http_url"]
+		httpToken := fields["http_token"]
+		if httpURL != "" || httpToken != "" {
+			adapter.SetHTTPConfig(httpURL, httpToken)
+		}
+		return adapter
 	case "telegram":
 		token := cfg.TelegramToken
 		if t, ok := fields["bot_token"]; ok && t != "" {