fix: 消息日志增强 + 历史消息抑制 + SSE实时追踪 + 群聊上下文优化

- 日志：收/发消息均显示群名称，管理员显示真实QQ昵称而非"开拓者"
- 历史消息：服务重启后NapCat回放的历史消息不再触发回复，静默注入上下文
- 消息时间戳：转发给AI时附带【消息时间: HH:MM:SS (XmXs前)】标记
- ♪ 分割符：QQ消息支持♪作为句子断点
- AI-Core SSE端点：全链路追踪实时推送，ethend不再5秒轮询
- 群聊上下文：AI-Core明确被告知消息来自群聊，以实际发送者为主语

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

backend/ai-core/cmd/main.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"syscall"
@@ -46,8 +47,13 @@ import (
 var cfg Config
 
 func main() {
-	// 自动加载 .env 文件（来自仓库根目录）
-	if err := godotenv.Load("../../.env"); err != nil {
+	// 自动加载 .env 文件（优先从可执行文件位置反推仓库根目录）
+	_ = godotenv.Load() // 先尝试当前目录
+	if exe, err := os.Executable(); err == nil {
+		_ = godotenv.Load(filepath.Join(filepath.Dir(exe), "..", "..", ".env"))
+	}
+	// 兜底：如果 LLM_MODEL 仍未设置，打印提示
+	if os.Getenv("LLM_MODEL") == "" {
 		log.Println("ℹ 未找到 .env 文件，将使用环境变量或默认值")
 	}
 
@@ -431,6 +437,36 @@ func main() {
 		})
 	})
 
+
+	// LLM 调用 SSE 实时推送
+	mux.HandleFunc("/api/v1/llm-calls/stream", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/event-stream")
+		w.Header().Set("Cache-Control", "no-cache")
+		w.Header().Set("Connection", "keep-alive")
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+
+		flusher, ok := w.(http.Flusher)
+		if !ok {
+			http.Error(w, "streaming not supported", http.StatusInternalServerError)
+			return
+		}
+
+		ch, done := llm.SubscribeCalls()
+		defer llm.UnsubscribeCalls(ch)
+
+		for {
+			select {
+			case rec := <-ch:
+				data, _ := json.Marshal(rec)
+				fmt.Fprintf(w, "data: %s\n\n", data)
+				flusher.Flush()
+			case <-done:
+				return
+			case <-r.Context().Done():
+				return
+			}
+		}
+	})
 	// 工具调用记录
 	mux.HandleFunc("/api/v1/tools/calls", func(w http.ResponseWriter, r *http.Request) {
 		if r.Method != http.MethodGet {
@@ -724,6 +760,13 @@ func handleChat(
 		Images    []string `json:"images,omitempty"` // 图片 base64 data URL
 		Mode      string   `json:"mode"`
 		Nickname  string   `json:"nickname,omitempty"`
+			Source    struct {
+				Platform    string `json:"platform"`
+				ChannelID   string `json:"channel_id"`
+				ChannelType string `json:"channel_type"`
+				SenderName  string `json:"sender_name"`
+				OriginalUID string `json:"original_uid"`
+			} `json:"source,omitempty"`
 	}
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		http.Error(w, "无效的请求体", http.StatusBadRequest)
@@ -781,12 +824,13 @@ func handleChat(
 	// 2. 调用 Orchestrator 处理（替代原有的线性处理流程）
 	// Orchestrator 内部处理：意图分析 → 子会话分派 → 结果汇总 → 综合生成回复
 	eventCh, err := orch.ProcessInput(ctx, orchestrator.ProcessParams{
-		UserID:    req.UserID,
-		SessionID: req.SessionID,
-		Message:   req.Message,
-		Images:    req.Images,
-		Mode:      req.Mode,
-		Nickname:  userNickname,
+		UserID:      req.UserID,
+		SessionID:   req.SessionID,
+		Message:     req.Message,
+		Images:      req.Images,
+		Mode:        req.Mode,
+		Nickname:    userNickname,
+		ChannelType: req.Source.ChannelType,
 	})
 	if err != nil {
 		errData, _ := json.Marshal(map[string]string{"delta": "", "error": fmt.Sprintf("处理失败: %v", err)})

backend/ai-core/internal/background/thinker.go

@@ -576,7 +576,7 @@ func (t *Thinker) performPlatformObservation() {
 
 	log.Printf("[后台思考] 平台观察：%d 个频道有记忆数据，调用中间会话生成摘要...", len(channelSummaries))
 
-	systemPrompt := "你是昔涟的后台观察助手。以下是各聊天平台频道最近的观察摘要。\n请生成简洁报告：\n1. 各频道近期讨论主题（每频道1-2句）\n2. 是否有需要开拓者关注的重要/紧急事项\n3. 整体氛围评估\n不要直接对开拓者说话，这是给昔涟参考的幕后报告。\n输出为JSON格式：{\"summary\": \"报告内容\", \"needs_attention\": true/false}"
+	systemPrompt := "你是昔涟的后台观察助手。以下是各聊天平台频道最近的观察摘要。\n请生成简洁报告：\n1. 各频道近期讨论主题（每频道1-2句）\n2. 是否有需要关注的重要/紧急事项\n3. 整体氛围评估\n注意：这些记忆可能来自不同的群聊成员（不只是开拓者），请以实际发言者为主语描述。不要直接对开拓者说话，这是给昔涟参考的幕后报告。\n输出为JSON格式：{\"summary\": \"报告内容\", \"needs_attention\": true/false}"
 
 	userPrompt := strings.Join(channelSummaries, "\n\n")
 
@@ -1099,12 +1099,12 @@ func (t *Thinker) buildThinkingUserPrompt(
 
 	switch triggerReason {
 	case "post_chat":
-		sb.WriteString("开拓者刚和你聊完天。你想自然地在心里回味一下刚才的对话……\n")
+		sb.WriteString("刚有人和你聊完天。你想自然地在心里回味一下刚才的对话……\n")
 	case "silence":
 		t.mu.Lock()
 		silenceDuration := time.Since(t.lastUserMessage)
 		t.mu.Unlock()
-		sb.WriteString(fmt.Sprintf("开拓者已经大约 %s 没有说话了。你有点想知道他在做什么……\n",
+		sb.WriteString(fmt.Sprintf("已经大约 %s 没有说话了。你有点想知道大家在做什么……\n",
 			formatDurationHuman(silenceDuration)))
 	default:
 		sb.WriteString("现在是你的自由思考时间。\n")
@@ -1117,7 +1117,7 @@ func (t *Thinker) buildThinkingUserPrompt(
 		msgCount := 0
 		for _, msg := range convHistory {
 			if msg.Role == model.RoleUser || msg.Role == model.RoleAssistant {
-				roleLabel := "开拓者"
+				roleLabel := "用户"
 				if msg.Role == model.RoleAssistant {
 					roleLabel = "昔涟"
 				}
@@ -1185,7 +1185,7 @@ func (t *Thinker) buildThinkingUserPrompt(
 
 	// 平台观察摘要 (中间会话产生的报告)
 	if platformObservation != "" {
-		sb.WriteString("\n\n【平台频道观察报告（中间会话生成，供参考）】\n")
+		sb.WriteString("\n\n【平台频道观察报告（中间会话生成，可能包含多位群聊成员的信息）】\n")
 		sb.WriteString(platformObservation)
 		sb.WriteString("\n")
 	}
@@ -1193,9 +1193,9 @@ func (t *Thinker) buildThinkingUserPrompt(
 	// 结尾引导
 	sb.WriteString("\n---\n现在请写下你的私人反思。")
 	sb.WriteString("\n记住：这是日记，用第三人称或自言自语的方式。")
-	sb.WriteString("\n⚠️ 如果开拓者正在休息/睡觉/忙碌——不要输出【主动消息】指令行。你可以在心里想他，但不要去打扰。")
-	sb.WriteString("\n只有在你确认他现在是醒着、有空、且真的需要关心时，才输出一行【主动消息】+ 你要发给他的话。")
-	sb.WriteString("\n❗【主动消息】标记必须独占一行开头，后面紧跟你要对开拓者说的话（用\"你\"称呼），语气自然像主动找他聊天。不要在反思正文中提及\"主动消息\"这个词——如果需要表达这个意思但又不打算发消息，用别的词代替。")
+	sb.WriteString("\n⚠️ 如果有人正在休息/睡觉/忙碌——不要输出【主动消息】指令行。你可以在心里想，但不要去打扰。")
+	sb.WriteString("\n只有在你确认对方现在是醒着、有空、且真的需要关心时，才输出一行【主动消息】+ 你要发给他的话。")
+	sb.WriteString("\n❗【主动消息】标记必须独占一行开头，后面紧跟你要说的话（用\"你\"称呼），语气自然像主动找对方聊天。不要在反思正文中提及\"主动消息\"这个词——如果需要表达这个意思但又不打算发消息，用别的词代替。")
 
 	return sb.String()
 }

backend/ai-core/internal/llm/call_log.go

@@ -52,6 +52,8 @@ func (cl *CallLogger) log(r CallRecord) {
 	if cl.size < cl.capacity {
 		cl.size++
 	}
+
+	broadcastCall(r)
 }
 
 func (cl *CallLogger) get(limit int) []CallRecord {
@@ -72,3 +74,49 @@ func (cl *CallLogger) get(limit int) []CallRecord {
 	}
 	return result
 }
+
+// --- SSE subscriber system ---
+
+type callSubscriber struct {
+	ch   chan CallRecord
+	done chan struct{}
+}
+
+var (
+	callSubscribers   []*callSubscriber
+	callSubscribersMu sync.RWMutex
+)
+
+// SubscribeCalls returns a channel that receives new CallRecords and a done channel.
+func SubscribeCalls() (<-chan CallRecord, <-chan struct{}) {
+	ch := make(chan CallRecord, 20)
+	done := make(chan struct{})
+	callSubscribersMu.Lock()
+	callSubscribers = append(callSubscribers, &callSubscriber{ch: ch, done: done})
+	callSubscribersMu.Unlock()
+	return ch, done
+}
+
+// UnsubscribeCalls removes a subscriber. Safe to call multiple times.
+func UnsubscribeCalls(ch <-chan CallRecord) {
+	callSubscribersMu.Lock()
+	defer callSubscribersMu.Unlock()
+	for i, s := range callSubscribers {
+		if s.ch == ch {
+			close(s.done)
+			callSubscribers = append(callSubscribers[:i], callSubscribers[i+1:]...)
+			return
+		}
+	}
+}
+
+func broadcastCall(r CallRecord) {
+	callSubscribersMu.RLock()
+	defer callSubscribersMu.RUnlock()
+	for _, s := range callSubscribers {
+		select {
+		case s.ch <- r:
+		default:
+		}
+	}
+}

backend/ai-core/internal/memory/extractor.go

@@ -83,7 +83,9 @@ func (e *Extractor) extractObservationsWithLLM(ctx context.Context, message stri
 观察到的消息: %s
 
 请以JSON格式返回提取的记忆。这条消息来自群聊/频道，昔涟只是旁观者。
-提取角度：这条消息中包含了什么关于聊天参与者、讨论主题、事件或氛围的信息？
+消息格式为：[群聊 群号] 发送者昵称 (QQ号)：消息内容
+提取角度：这条消息中包含了什么关于消息发送者、讨论主题、事件或氛围的信息？
+重要：请以实际发送者的名字为主语（如"某某说..."），不要统一用"开拓者"称呼所有发言者。
 
 每条记忆需要包含以下字段：
 - content: 完整的记忆内容（一句话描述，客观准确）

backend/ai-core/internal/orchestrator/orchestrator.go

@@ -117,12 +117,13 @@ func NewOrchestrator(
 
 // ProcessParams 处理参数
 type ProcessParams struct {
-	UserID    string
-	SessionID string
-	Message   string
-	Images    []string // 图片 base64 data URL (多模态)
-	Mode      string   // text / voice_msg / voice_assistant
-	Nickname  string
+	UserID      string
+	SessionID   string
+	Message     string
+	Images      []string // 图片 base64 data URL (多模态)
+	Mode        string   // text / voice_msg / voice_assistant
+	Nickname    string
+	ChannelType string // direct / group
 }
 
 // ProcessResult 处理结果
@@ -334,6 +335,7 @@ func (o *Orchestrator) ProcessInput(
 			PersonaPrompt: systemPrompt,
 			DialogHistory: history,
 			Mode:          params.Mode,
+			ChannelType:   params.ChannelType,
 		}
 		if prevEnrichment != nil {
 			synthParams.MemorySummary = prevEnrichment.MemorySummary

backend/ai-core/internal/orchestrator/synthesizer.go

@@ -45,6 +45,7 @@ type SynthesizeParams struct {
 	KnowledgeInfo      string                      // 知识库检索摘要
 	PendingToolResults []PendingToolResult         // 上一轮异步完成的工具结果
 	Mode               string                      // text / voice_assistant
+	ChannelType        string                      // direct / group
 }
 
 // Synthesize 综合所有子会话结果，流式生成最终回复。
@@ -210,7 +211,15 @@ func (s *Synthesizer) buildSynthesizeMessages(params SynthesizeParams) []model.L
 		Content: systemPrompt,
 	})
 
-	// 注入记忆摘要
+	// 群聊上下文：当消息来自群聊时，告知模型这是一条群聊消息而非一对一私聊。
+	if params.ChannelType == "group" {
+		messages = append(messages, model.LLMMessage{
+			Role:    model.RoleSystem,
+			Content: "【群聊上下文】这条消息来自QQ群聊。消息前缀 [群聊 群号] 昵称 (QQ号) 标注了真实发送者。你不是在和开拓者一对一私聊，而是在群聊中和不同成员交流。请用发送者的真实名字称呼，不要叫所有人开拓者或叶酱。只在对你说话或延续已有对话时才回复。",
+		})
+	}
+
+	// 注入记忆摘要// 注入记忆摘要
 	if params.MemorySummary != "" && !strings.Contains(params.MemorySummary, "没有找到") {
 		messages = append(messages, model.LLMMessage{
 			Role:    model.RoleSystem,

backend/platform-bridge/cmd/main.go

@@ -75,7 +75,8 @@ func main() {
 			Platform:    msg.Platform,
 			ChannelID:   msg.ChannelID,
 			SenderID:    msg.OriginalSenderUID,
-			SenderName:  msg.SenderName,
+			SenderName:  msg.OriginalSenderName,
+			GroupName:   msg.GroupName,
 			Content:     msg.Content,
 			ContentType: msg.ContentType,
 			MessageID:   msg.MessageID,
@@ -88,6 +89,29 @@ func main() {
 		isBotMentioned := msg.BotUID != "" && containsString(msg.Mentions, msg.BotUID)
 		isSilent := cfg.PlatformSilentEnabled && !isAdmin && !isBotMentioned
 
+		// Add message timestamp for AI context.
+		if !msg.Timestamp.IsZero() {
+			timeAgo := time.Since(msg.Timestamp)
+			timeLabel := fmt.Sprintf("【消息时间: %s (%s前)】\n", msg.Timestamp.Format("15:04:05"), formatDuration(timeAgo))
+			msg.Content = timeLabel + msg.Content
+		}
+
+		// Enrich group messages with group name and sender info.
+		if msg.ChannelType == "group" {
+			groupLabel := msg.ChannelID
+			if msg.GroupName != "" {
+				groupLabel = truncateString(msg.GroupName, 8) + " " + msg.ChannelID
+			}
+			senderLabel := msg.OriginalSenderName
+			if senderLabel == "" {
+				senderLabel = msg.SenderName
+			}
+			if isAdmin {
+				senderLabel = "【管理员】" + msg.OriginalSenderName
+			}
+			msg.Content = fmt.Sprintf("[群聊 %s] %s (%s)：\n%s", groupLabel, senderLabel, msg.OriginalSenderUID, msg.Content)
+		}
+
 		// Blocklist/whitelist check (admin always bypasses).
 		if blocked := blocklistStore.IsBlocked(msg.ChannelType, msg.ChannelID, msg.OriginalSenderUID, isAdmin); blocked {
 			msgLogger.Log(logging.LogEntry{
@@ -122,6 +146,11 @@ func main() {
 		groupSessionID := fmt.Sprintf("platform_%s_%s", msg.Platform, msg.ChannelID)
 
 		switch {
+		case isMessageHistorical(msg, router):
+			msg.RouteType = "silent"
+			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
+			response, routeErr = forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil)
+
 		case isAdmin && !isBotMentioned && shouldAdminBeSilent(msg, router):
 			msg.RouteType = "silent"
 			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
@@ -189,6 +218,7 @@ func main() {
 					ChannelID:   msg.ChannelID,
 					SenderID:    msg.BotUID,
 					SenderName:  "Cyrene",
+					GroupName:   msg.GroupName,
 					Content:     rm.Content,
 					ContentType: "text",
 					Success:     true,
@@ -678,20 +708,30 @@ func parseSSEAndAccumulate(body string) string {
 	return strings.Join(deltas, "")
 }
 
-// splitContent splits text by \n\n into multiple ResponseMessage segments.
+// splitContent splits text by ♪ (sentence-break marker), then by \n\n within each segment.
 // Non-empty segments are each wrapped as a chat message; empty input returns a single empty message.
 func splitContent(text string) []bridge.ResponseMessage {
-	parts := strings.Split(text, "\n\n")
+	// First split by ♪ sentence-break marker.
+	var rawParts []string
+	if strings.Contains(text, "♪") {
+		rawParts = strings.Split(text, "♪")
+	} else {
+		rawParts = strings.Split(text, "\n\n")
+	}
+	var parts []string
+	for _, p := range rawParts {
+		p = strings.TrimSpace(p)
+		if p != "" {
+			parts = append(parts, p)
+		}
+	}
 	var msgs []bridge.ResponseMessage
 	for _, part := range parts {
-		part = strings.TrimSpace(part)
-		if part != "" {
-			msgs = append(msgs, bridge.ResponseMessage{
-				DisplayType: "chat",
-				Content:     part,
-				FormatMode:  "plain",
-			})
-		}
+		msgs = append(msgs, bridge.ResponseMessage{
+			DisplayType: "chat",
+			Content:     part,
+			FormatMode:  "plain",
+		})
 	}
 	if len(msgs) == 0 {
 		return []bridge.ResponseMessage{
@@ -843,3 +883,49 @@ func syncAdminUIDs(m *bridge.IdentityMapper, platform string, fields map[string]
 	}
 	fmt.Printf("Synced admin identities for %s from config: %s\n", platform, raw)
 }
+
+// formatDuration returns a human-readable duration string like "1h2m3s".
+func formatDuration(d time.Duration) string {
+	if d < time.Minute {
+		return fmt.Sprintf("%ds", int(d.Seconds()))
+	}
+	if d < time.Hour {
+		m := int(d.Minutes())
+		s := int(d.Seconds()) % 60
+		if s > 0 {
+			return fmt.Sprintf("%dm%ds", m, s)
+		}
+		return fmt.Sprintf("%dm", m)
+	}
+	h := int(d.Hours())
+	m := int(d.Minutes()) % 60
+	if m > 0 {
+		return fmt.Sprintf("%dh%dm", h, m)
+	}
+	return fmt.Sprintf("%dh", h)
+}
+
+// truncateString truncates a string to maxRunes runes, appending "…" if truncated.
+func truncateString(s string, maxRunes int) string {
+	runes := []rune(s)
+	if len(runes) <= maxRunes {
+		return s
+	}
+	return string(runes[:maxRunes]) + "…"
+}
+
+// isMessageHistorical returns true if the message timestamp is before the adapter's connection time,
+// indicating it is a replayed historical message that should be silently observed.
+func isMessageHistorical(msg *bridge.UnifiedMessage, router *bridge.PlatformRouter) bool {
+	if msg.Timestamp.IsZero() {
+		return false
+	}
+	for _, a := range router.GetAdaptersByPlatform(msg.Platform) {
+		if connectedAt, ok := a.(interface{ ConnectedAt() time.Time }); ok {
+			if msg.Timestamp.Before(connectedAt.ConnectedAt()) {
+				return true
+			}
+		}
+	}
+	return false
+}

backend/platform-bridge/internal/adapter/qq/adapter.go

@@ -34,8 +34,12 @@ type Adapter struct {
 	conn           *websocket.Conn
 	connMu         sync.Mutex
 	connected      bool
+	connectedAt    time.Time // when the connection was established (for historical message detection)
 	srv            *http.Server // HTTP server for WS upgrades (server mode only)
 
+	groupNames   map[int64]string    // group ID → group name cache
+	groupNamesMu sync.RWMutex
+
 	pendingResponses map[string]chan *OBv11APIResponse
 	respMu           sync.Mutex
 }
@@ -52,6 +56,7 @@ func NewAdapter(configName, mode, port, accessToken, remoteURL string, sendInter
 		remoteURL:        remoteURL,
 		sendIntervalMs:   sendIntervalMs,
 		pendingResponses: make(map[string]chan *OBv11APIResponse),
+		groupNames:       make(map[int64]string),
 	}
 }
 
@@ -60,6 +65,76 @@ func (a *Adapter) ConfigName() string    { return a.configName }
 func (a *Adapter) SendIntervalMs() int   { return a.sendIntervalMs }
 func (a *Adapter) SelfID() string        { return a.selfID }
 
+// ConnectedAt returns the time the connection was established, for historical message detection.
+func (a *Adapter) ConnectedAt() time.Time {
+	a.connMu.Lock()
+	defer a.connMu.Unlock()
+	return a.connectedAt
+}
+
+// GroupName resolves a group ID to its name. Returns empty string if unknown.
+func (a *Adapter) GroupName(groupID int64) string {
+	a.groupNamesMu.RLock()
+	n, ok := a.groupNames[groupID]
+	a.groupNamesMu.RUnlock()
+	if ok {
+		return n
+	}
+	// Try to resolve via API.
+	a.fetchGroupName(groupID)
+	return ""
+}
+
+// SetGroupName caches a group name for a group ID.
+func (a *Adapter) SetGroupName(groupID int64, name string) {
+	a.groupNamesMu.Lock()
+	a.groupNames[groupID] = name
+	a.groupNamesMu.Unlock()
+}
+
+// fetchGroupName tries to resolve a group name via NapCat HTTP API (client mode).
+func (a *Adapter) fetchGroupName(groupID int64) {
+	if a.mode != "client" || a.remoteURL == "" {
+		return
+	}
+	// Derive HTTP base from WS URL: ws://host:port → http://host:port
+	httpBase := strings.Replace(a.remoteURL, "ws://", "http://", 1)
+	httpBase = strings.Replace(httpBase, "wss://", "https://", 1)
+	// Strip path suffix if present
+	if idx := strings.LastIndex(httpBase, "/"); idx > 8 {
+		httpBase = httpBase[:idx]
+	}
+
+	go func() {
+		url := fmt.Sprintf("%s/get_group_info?group_id=%d", httpBase, groupID)
+		if a.accessToken != "" {
+			url += "&access_token=" + a.accessToken
+		}
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
+		if err != nil {
+			return
+		}
+		resp, err := http.DefaultClient.Do(req)
+		if err != nil {
+			return
+		}
+		defer resp.Body.Close()
+		var result struct {
+			Data struct {
+				GroupName string `json:"group_name"`
+			} `json:"data"`
+		}
+		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+			return
+		}
+		if result.Data.GroupName != "" {
+			a.SetGroupName(groupID, result.Data.GroupName)
+		}
+	}()
+}
+
 func (a *Adapter) Capabilities() bridge.PlatformCapabilities {
 	return bridge.PlatformCapabilities{
 		MaxMessageLength:   200,
@@ -109,6 +184,7 @@ func (a *Adapter) wsHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	a.conn = conn
 	a.connected = true
+	a.connectedAt = time.Now()
 	a.connMu.Unlock()
 	fmt.Println("[qq] NapCat/OneBot connected (正向WS)")
 }
@@ -148,6 +224,7 @@ func (a *Adapter) connectClient(ctx context.Context) error {
 	}
 	a.conn = conn
 	a.connected = true
+	a.connectedAt = time.Now()
 	a.connMu.Unlock()
 
 	fmt.Printf("[qq] connected to NapCat OneBot WS (client mode): %s\n", a.remoteURL)
@@ -257,6 +334,26 @@ func (a *Adapter) ToUnified(rawMessage interface{}) (*bridge.UnifiedMessage, err
 			}
 		}
 	}
+	// Fallback: parse CQ at codes from string format (e.g. [CQ:at,qq=2254389756]).
+	if len(mentions) == 0 {
+		raw := msg.RawMessage
+		if raw == "" {
+			if s, ok := msg.Message.(string); ok {
+				raw = s
+			}
+		}
+		for _, m := range cqAtRegex.FindAllStringSubmatch(raw, -1) {
+			if len(m) >= 2 {
+				mentions = append(mentions, m[1])
+			}
+		}
+	}
+
+	// Resolve group name for group messages.
+	groupName := ""
+	if msg.MessageType == "group" {
+		groupName = a.GroupName(msg.GroupID)
+	}
 
 	attachments := extractAttachments(msg)
 
@@ -273,6 +370,7 @@ func (a *Adapter) ToUnified(rawMessage interface{}) (*bridge.UnifiedMessage, err
 		Attachments: attachments,
 		RawData:     rawMessage,
 		Timestamp:   time.Unix(msg.Time, 0),
+			GroupName:   groupName,
 	}, nil
 }
 
@@ -416,6 +514,7 @@ func extractText(msg *OBv11Message) string {
 	return ""
 }
 
+var cqAtRegex = regexp.MustCompile(`\[CQ:at,qq=(\d+)\]`)
 var cqImageRegex = regexp.MustCompile(`\[CQ:image,[^\]]*\]`)
 var cqURLRegex = regexp.MustCompile(`\burl=([^,\]]+)`)
 	var boldRegex = regexp.MustCompile(`\*\*(.+?)\*\*`)

backend/platform-bridge/internal/bridge/router.go

@@ -4,10 +4,14 @@ import (
 	"context"
 	"fmt"
 	"sync"
+	"time"
 
 	"git.yeij.top/AskaEth/Cyrene/platform-bridge/internal/permissions"
 )
 
+
+const participantTTL = 5 * time.Minute
+
 // adapterKey returns the unique key for an adapter in the router map.
 // Uses ConfigName() if the adapter implements it, otherwise PlatformName().
 func adapterKey(a PlatformAdapter) string {
@@ -31,13 +35,14 @@ type PlatformRouter struct {
 
 // ChannelContext stores the active conversation state for a channel.
 type ChannelContext struct {
-	Platform      string
-	ChannelID     string
-	ChannelType   string
-	LastUserMsg   string
-	LastSenderUID string
-	RecentSenders []string // last 5 sender UIDs (original platform UIDs)
-	MessageCount  int
+	Platform            string
+	ChannelID           string
+	ChannelType         string
+	LastUserMsg         string
+	LastSenderUID       string
+	RecentSenders       []string // last 5 sender UIDs (original platform UIDs)
+	ActiveParticipants map[string]time.Time // UID -> last bot reply time (for multi-user conversation continuity)
+	MessageCount        int
 }
 
 func NewPlatformRouter(mapper *IdentityMapper, checker *permissions.Checker) *PlatformRouter {
@@ -137,6 +142,7 @@ func (r *PlatformRouter) RouteMessage(adapterKey string, rawMsg interface{}) (*U
 
 	// Preserve original platform UID before identity mapping.
 	unified.OriginalSenderUID = unified.SenderID
+	unified.OriginalSenderName = unified.SenderName
 	unified.OriginalRawMessage = rawMsg
 
 	// Capture bot's own UID for @mention detection.
@@ -228,3 +234,37 @@ func (r *PlatformRouter) GetContext(platform, channelID string) *ChannelContext
 	defer r.mu.RUnlock()
 	return r.contexts[platform+":"+channelID]
 }
+
+// NoteBotReply records that the bot just replied to a specific user in a channel.
+// Used for conversation continuity: subsequent messages from this user continue the
+// conversation even without an explicit @mention, within the participant TTL window.
+func (r *PlatformRouter) NoteBotReply(platform, channelID, recipientUID string) {
+	r.mu.Lock()
+	defer r.mu.Unlock()
+	key := r.channelKey(platform, channelID)
+	ctx, ok := r.contexts[key]
+	if !ok {
+		return
+	}
+	if ctx.ActiveParticipants == nil {
+		ctx.ActiveParticipants = make(map[string]time.Time)
+	}
+	ctx.ActiveParticipants[recipientUID] = time.Now()
+}
+
+// IsActiveParticipant checks if a user was recently engaged by the bot.
+// TTL controls how long the continuity window stays open after the last bot reply.
+func (r *PlatformRouter) IsActiveParticipant(platform, channelID, uid string) bool {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+	key := r.channelKey(platform, channelID)
+	ctx, ok := r.contexts[key]
+	if !ok || ctx.ActiveParticipants == nil {
+		return false
+	}
+	t, ok := ctx.ActiveParticipants[uid]
+	if !ok {
+		return false
+	}
+	return time.Since(t) < participantTTL
+}

backend/platform-bridge/internal/bridge/unified.go

@@ -23,10 +23,12 @@ type UnifiedMessage struct {
 	Timestamp time.Time   `json:"timestamp"`
 
 	// Routing metadata.
-	RouteType         string      `json:"route_type,omitempty"`          // "normal", "silent", "admin_mention"
-	OriginalSenderUID string      `json:"original_sender_uid,omitempty"` // preserved before identity mapping
-	OriginalRawMessage interface{} `json:"-"`                             // preserved for SendMessage wiring
-	BotUID            string      `json:"-"`                             // bot's own platform UID, set by router
+	RouteType           string      `json:"route_type,omitempty"`            // "normal", "silent", "admin_mention"
+	OriginalSenderUID   string      `json:"original_sender_uid,omitempty"`   // preserved before identity mapping
+	OriginalSenderName  string      `json:"original_sender_name,omitempty"`  // preserved before identity mapping
+	GroupName           string      `json:"group_name,omitempty"`            // resolved group name for group chats
+	OriginalRawMessage  interface{} `json:"-"`                               // preserved for SendMessage wiring
+	BotUID              string      `json:"-"`                               // bot's own platform UID, set by router
 }
 
 // Attachment represents a file/image/voice attachment.

backend/platform-bridge/internal/logging/logger.go

@@ -18,6 +18,7 @@ type LogEntry struct {
 	ChannelID   string    `json:"channel_id"`
 	SenderID    string    `json:"sender_id"`
 	SenderName  string    `json:"sender_name"`
+	GroupName   string    `json:"group_name,omitempty"`
 	Content     string    `json:"content"`
 	ContentType string    `json:"content_type"`
 	MessageID   string    `json:"message_id,omitempty"`

ethend/public/index.html

@@ -1200,8 +1200,8 @@ function switchPanel(name) {
     history.replaceState(null, '', '#' + name);
   }
 
-  // 停止链路追踪定时器
-  stopTraceAutoRefresh();
+  // 停止链路追踪 SSE
+  disconnectTraceStream();
 
   // 更新侧边栏
   document.querySelectorAll('.nav-item').forEach(b => b.classList.remove('active'));
@@ -1232,24 +1232,24 @@ function switchPanel(name) {
 
   // 渲染面板
   switch (name) {
-    case 'dashboard': renderDashboard(); startDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'memory': renderMemoryPanel(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'sessions': renderSessionsPanel(); startSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'services': renderServicesPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'iot': renderIoTPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); startIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'performance': renderPerformancePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'database': renderDatabasePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); startDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'vmMonitor': renderVMMonitorPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'toolCalls': renderToolCallsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'stt': renderSTTPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'plugins': renderPluginsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'thinking': renderThinkingPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
+    case 'dashboard': renderDashboard(); startDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'memory': renderMemoryPanel(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'sessions': renderSessionsPanel(); startSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'services': renderServicesPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'iot': renderIoTPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); startIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'performance': renderPerformancePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'database': renderDatabasePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); startDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'vmMonitor': renderVMMonitorPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'toolCalls': renderToolCallsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'stt': renderSTTPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'plugins': renderPluginsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'thinking': renderThinkingPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
     case 'timeline': renderTimelinePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); startTimelineAutoRefresh(); break;
     case 'chatPlatforms': renderChatPlatformsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); startChatAutoRefresh(); break;
-    case 'clients': renderClientsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-	    case 'modelConfig': renderModelConfigPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-    case 'thinkingSchedule': renderThinkingSchedulePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
-	    case 'llmCalls': renderLlmCallsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
+    case 'clients': renderClientsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+	    case 'modelConfig': renderModelConfigPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+    case 'thinkingSchedule': renderThinkingSchedulePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
+	    case 'llmCalls': renderLlmCallsPanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); disconnectTraceStream(); break;
     case 'trace': renderTracePanel(); stopSessionsAutoRefresh(); stopDashboardAutoRefresh(); stopDbAutoRefresh(); stopIoTRefresh(); stopTimelineAutoRefresh(); break;
   }
 }
@@ -6135,22 +6135,23 @@ async function renderVMMonitorPanel() {
 }
 
 // ========== 全链路追踪面板 ==========
-var traceAutoRefreshId = null;
 var traceMode = 'recent'; // 'recent' | 'session'
 var traceSessionId = '';
+var traceStreamSource = null;
+var traceSeenIds = new Set();
+var traceMaxDomEntries = 200;
 
 function renderTracePanel() {
   document.getElementById('panel-actions').innerHTML =
     '<button class="btn btn-sm" onclick="refreshTrace()" id="trace-refresh-btn">🔄 刷新</button>' +
-    '<label style="font-size:11px;color:var(--text2);display:flex;align-items:center;gap:4px;cursor:pointer">' +
-      '<input type="checkbox" id="trace-auto-refresh" onchange="toggleTraceAutoRefresh()"> 自动刷新 (5s)' +
-    '</label>';
+    '<span id="trace-live-status" style="font-size:11px;color:var(--green);display:flex;align-items:center;gap:4px">' +
+      '<span style="display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 2s infinite"></span> 实时</span>';
 
   document.getElementById('panel-trace').innerHTML =
     '<div class="card">' +
       '<div class="card-header">' +
         '<span class="card-title">🔗 全链路消息追踪</span>' +
-        '<span style="font-size:11px;color:var(--text2)">追踪 Client → Gateway → AI-Core → LLM 全链路</span>' +
+        '<span style="font-size:11px;color:var(--text2)">追踪 Client → Gateway → AI-Core → LLM 全链路 (实时推送)</span>' +
       '</div>' +
       '<div class="trace-control-bar">' +
         '<button class="btn btn-sm ' + (traceMode === 'recent' ? 'btn-accent' : '') + '" onclick="switchTraceMode(\'recent\')">📋 最近活动</button>' +
@@ -6166,35 +6167,69 @@ function renderTracePanel() {
       '</div>' +
     '</div>';
 
+  connectTraceStream();
   refreshTrace();
 }
 
 function switchTraceMode(mode) {
   traceMode = mode;
-  stopTraceAutoRefresh();
-  document.getElementById('trace-auto-refresh').checked = false;
+  traceSeenIds.clear();
   renderTracePanel();
 }
 
-function toggleTraceAutoRefresh() {
-  var checked = document.getElementById('trace-auto-refresh').checked;
-  if (checked) {
-    startTraceAutoRefresh();
+// --- SSE 实时推送 ---
+
+function connectTraceStream() {
+  disconnectTraceStream();
+  var url = getAICoreBaseUrl() + '/api/v1/llm-calls/stream';
+  traceStreamSource = new EventSource(url);
+  traceStreamSource.onmessage = function(e) {
+    try {
+      var call = JSON.parse(e.data);
+      var trace = llmCallToTrace(call);
+      if (trace && !traceSeenIds.has(trace.id)) {
+        traceSeenIds.add(trace.id);
+        addTraceToTimeline(trace, true);
+      }
+    } catch(ignore) {}
+  };
+  traceStreamSource.onerror = function() {
+    updateTraceLiveStatus(false);
+    traceStreamSource.close();
+    setTimeout(function() {
+      if (STATE.activePanel === 'trace') connectTraceStream();
+    }, 3000);
+  };
+  traceStreamSource.onopen = function() {
+    updateTraceLiveStatus(true);
+  };
+}
+
+function disconnectTraceStream() {
+  if (traceStreamSource) {
+    traceStreamSource.close();
+    traceStreamSource = null;
+  }
+  updateTraceLiveStatus(false);
+}
+
+function updateTraceLiveStatus(connected) {
+  var el = document.getElementById('trace-live-status');
+  if (!el) return;
+  if (connected) {
+    el.innerHTML = '<span style="display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 2s infinite"></span> 实时';
+    el.style.color = 'var(--green)';
   } else {
-    stopTraceAutoRefresh();
+    el.innerHTML = '⚫ 离线';
+    el.style.color = 'var(--text3)';
   }
 }
 
-function startTraceAutoRefresh() {
-  stopTraceAutoRefresh();
-  traceAutoRefreshId = setInterval(function() {
-    if (STATE.activePanel === 'trace') refreshTrace();
-  }, 5000);
+function getAICoreBaseUrl() {
+  return 'http://localhost:8081';
 }
 
-function stopTraceAutoRefresh() {
-  if (traceAutoRefreshId) { clearInterval(traceAutoRefreshId); traceAutoRefreshId = null; }
-}
+// --- 初始加载 & 手动刷新 ---
 
 async function refreshTrace() {
   var contentEl = document.getElementById('trace-content');
@@ -6202,8 +6237,6 @@ async function refreshTrace() {
   var btn = document.getElementById('trace-refresh-btn');
   if (btn) btn.classList.add('spinning');
 
-  // 热更新：不清空现有内容，仅在按钮上显示加载状态
-
   var url, data;
   if (traceMode === 'session') {
     var sid = document.getElementById('trace-session-id').value.trim();
@@ -6242,93 +6275,158 @@ async function refreshTrace() {
   var traces = data.traces || [];
   var stats = data.stats || {};
 
-  // 统计栏 — 热更新
-  var servicesCount = (stats.services || []).length;
-  var statsHtml =
-    '<div class="trace-summary-item">📊 <span class="tsi-val">' + traces.length + '</span> 个追踪节点</div>' +
-    '<div class="trace-summary-item">🖥 <span class="tsi-val">' + servicesCount + '</span> 个服务</div>' +
-    (stats.errors > 0 ? '<div class="trace-summary-item" style="color:var(--red)">❌ <span class="tsi-val">' + stats.errors + '</span> 个错误</div>' : '<div class="trace-summary-item" style="color:var(--green)">✅ 全部成功</div>') +
-    (stats.totalSpanMs > 0 ? '<div class="trace-summary-item">⏱ 总跨度 <span class="tsi-val">' + (stats.totalSpanMs / 1000).toFixed(2) + 's</span></div>' : '') +
-    (stats.totalDurationMs > 0 ? '<div class="trace-summary-item">⏳ 总耗时 <span class="tsi-val">' + (stats.totalDurationMs / 1000).toFixed(2) + 's</span></div>' : '');
-
-  // Session info
-  if (data.session) {
-    var s = data.session;
-    statsHtml +=
-      '<div class="trace-summary-item">💬 Session: <code style="font-size:10px">' + escHtml((s.session_id || '').substring(0, 20)) + '...</code></div>' +
-      '<div class="trace-summary-item">👤 User: ' + escHtml(s.user_id || '—') + '</div>';
+  // 筛选出新的追踪节点
+  var newTraces = [];
+  for (var i = 0; i < traces.length; i++) {
+    if (!traceSeenIds.has(traces[i].id)) {
+      traceSeenIds.add(traces[i].id);
+      newTraces.push(traces[i]);
+    }
   }
-  statsEl.innerHTML = statsHtml;
 
-  // 更新侧边栏徽章
+  // 如果是首次加载（content 只有 loading 提示），全量渲染
+  var timeline = contentEl.querySelector('.trace-timeline');
+  if (!timeline) {
+    if (traces.length === 0) {
+      contentEl.innerHTML = '<div class="trace-empty"><div class="icon">📭</div>暂无链路追踪数据<br><span style="font-size:11px;color:var(--text3)">请确保服务正在运行且有消息活动</span></div>';
+      statsEl.innerHTML = '';
+      return;
+    }
+    // 全量渲染
+    var html = '<div class="trace-timeline">';
+    for (var i = 0; i < traces.length; i++) {
+      html += traceHopHtml(traces[i], i > 0 ? traces[i-1] : null);
+    }
+    html += '</div>';
+    contentEl.innerHTML = html;
+  } else if (newTraces.length > 0) {
+    // 增量添加
+    for (var j = newTraces.length - 1; j >= 0; j--) {
+      addTraceToTimeline(newTraces[j], false);
+    }
+    pruneTimeline();
+  }
+
+  // 更新统计
+  updateTraceStatsEl(statsEl, traces, stats, data.session);
+
+  // 更新徽章
   var badge = document.getElementById('trace-badge');
   if (badge) {
     badge.textContent = traces.length;
     badge.style.display = traces.length > 0 ? 'inline-block' : 'none';
   }
+}
 
-  if (traces.length === 0) {
-    contentEl.innerHTML = '<div class="trace-empty"><div class="icon">📭</div>暂无链路追踪数据<br><span style="font-size:11px;color:var(--text3)">请确保服务正在运行且有消息活动</span></div>';
-    return;
+// --- 增量 DOM 操作 ---
+
+function addTraceToTimeline(trace, isLive) {
+  var contentEl = document.getElementById('trace-content');
+  var timeline = contentEl.querySelector('.trace-timeline');
+  if (!timeline) return;
+
+  var gapIndicator = timeline.querySelector('div[data-gap]');
+  var insertPoint = gapIndicator || timeline.firstChild;
+
+  var html = traceHopHtml(trace, null);
+  var temp = document.createElement('div');
+  temp.innerHTML = html;
+
+  while (temp.firstChild) {
+    timeline.insertBefore(temp.firstChild, insertPoint);
   }
 
-  // 保存当前展开状态，重建 DOM 后恢复
-  var expandedHops = [];
-  var existingHops = contentEl.querySelectorAll('.trace-hop-detail.open');
-  for (var ei = 0; ei < existingHops.length; ei++) {
-    // 用 hop 的 label+timestamp 做 key 来恢复
-    var prevHop = existingHops[ei].previousElementSibling;
-    if (prevHop) {
-      var hopLabel = prevHop.querySelector('.hop-label');
-      var hopTime = prevHop.querySelector('.hop-time');
-      if (hopLabel && hopTime) {
-        expandedHops.push(hopTime.textContent + '|' + hopLabel.textContent);
-      }
+  if (isLive) {
+    var newHop = timeline.querySelector('.trace-hop');
+    if (newHop) {
+      newHop.style.transition = 'background 0.3s';
+      newHop.style.background = 'var(--accent-bg)';
+      setTimeout(function() { newHop.style.background = ''; }, 2000);
     }
   }
 
-  // 渲染时间线
-  var html = '<div class="trace-timeline">';
+  pruneTimeline();
+}
 
-  for (var i = 0; i < traces.length; i++) {
-    var t = traces[i];
-    var time = new Date(t.timestamp).toISOString().replace('T', ' ').slice(11, 19);
-    var isError = t.status === 'error';
-    var hopKey = time + '|' + t.label;
-    var wasExpanded = expandedHops.indexOf(hopKey) >= 0;
-    var gapHtml = '';
-
-    // 显示与上一跳的时间间隔
-    if (i > 0) {
-      var gap = t.ts - traces[i - 1].ts;
-      if (gap > 50) {
-        gapHtml = '<div style="text-align:center;padding:2px 0;font-size:10px;color:var(--text3);margin-left:48px">↓ ' + (gap > 1000 ? (gap / 1000).toFixed(2) + 's' : gap + 'ms') + '</div>';
-      }
+function pruneTimeline() {
+  var timeline = document.querySelector('.trace-timeline');
+  if (!timeline) return;
+  var hops = timeline.querySelectorAll('.trace-hop');
+  while (hops.length > traceMaxDomEntries) {
+    var last = hops[hops.length - 1];
+    var detail = last.nextElementSibling;
+    if (detail && detail.classList.contains('trace-hop-detail')) {
+      detail.remove();
     }
+    last.remove();
+    hops = timeline.querySelectorAll('.trace-hop');
+  }
+}
 
-    html += gapHtml;
+function traceHopHtml(t, prevT) {
+  var time = new Date(t.timestamp).toISOString().replace('T', ' ').slice(11, 19);
+  var isError = t.status === 'error';
+  var gapHtml = '';
+
+  if (prevT) {
+    var gap = t.ts - prevT.ts;
+    if (gap > 50) {
+      gapHtml = '<div data-gap style="text-align:center;padding:2px 0;font-size:10px;color:var(--text3);margin-left:48px">↓ ' + (gap > 1000 ? (gap / 1000).toFixed(2) + 's' : gap + 'ms') + '</div>';
+    }
+  }
+
+  return gapHtml +
+    '<div class="trace-hop ' + (isError ? 'error' : 'success') + '" data-id="' + escHtml(t.id) + '" onclick="toggleTraceHop(this)" title="点击展开详情">' +
+      '<div class="hop-dot ' + (isError ? 'error' : escHtml(t.service)) + '"></div>' +
+      '<span class="hop-time">' + escHtml(time) + '</span>' +
+      '<span class="hop-service ' + escHtml(t.service) + '">' + escHtml(t.service) + '</span>' +
+      '<span class="hop-label">' + escHtml(t.label) + '</span>' +
+      (t.durationMs > 0 ? '<span class="hop-duration">' + (t.durationMs >= 1000 ? (t.durationMs / 1000).toFixed(2) + 's' : t.durationMs + 'ms') + '</span>' : '') +
+      '<span class="hop-status">' + (isError ? '❌' : '✅') + '</span>' +
+    '</div>' +
+    '<div class="trace-hop-detail">' +
+      '<div><strong>时间:</strong> ' + escHtml(t.timestamp) + '</div>' +
+      '<div><strong>服务:</strong> ' + escHtml(t.service) + '</div>' +
+      '<div><strong>节点:</strong> ' + escHtml(t.hop) + '</div>' +
+      '<div><strong>标签:</strong> ' + escHtml(t.label) + '</div>' +
+      (t.durationMs > 0 ? '<div><strong>耗时:</strong> ' + (t.durationMs >= 1000 ? (t.durationMs / 1000).toFixed(2) + 's' : t.durationMs + 'ms') + '</div>' : '') +
+      '<div><strong>状态:</strong> ' + (isError ? '❌ 失败' : '✅ 成功') + '</div>' +
+      (t.detail ? '<div style="margin-top:6px"><strong>详情:</strong><br>' + escHtml(String(t.detail)) + '</div>' : '') +
+    '</div>';
+}
+
+function updateTraceStatsEl(statsEl, traces, stats, session) {
+  var servicesCount = (stats.services || []).length;
+  var html =
+    '<div class="trace-summary-item">📊 <span class="tsi-val">' + traces.length + '</span> 个追踪节点</div>' +
+    '<div class="trace-summary-item">🖥 <span class="tsi-val">' + servicesCount + '</span> 个服务</div>' +
+    (stats.errors > 0 ? '<div class="trace-summary-item" style="color:var(--red)">❌ <span class="tsi-val">' + stats.errors + '</span> 个错误</div>' : '<div class="trace-summary-item" style="color:var(--green)">✅ 全部成功</div>') +
+    (stats.totalSpanMs > 0 ? '<div class="trace-summary-item">⏱ 总跨度 <span class="tsi-val">' + (stats.totalSpanMs / 1000).toFixed(2) + 's</span></div>' : '') +
+    (stats.totalDurationMs > 0 ? '<div class="trace-summary-item">⏳ 总耗时 <span class="tsi-val">' + (stats.totalDurationMs / 1000).toFixed(2) + 's</span></div>' : '');
+  if (session) {
+    var s = session;
     html +=
-      '<div class="trace-hop ' + (isError ? 'error' : 'success') + '" onclick="toggleTraceHop(this)" title="点击展开详情">' +
-        '<div class="hop-dot ' + (isError ? 'error' : escHtml(t.service)) + '"></div>' +
-        '<span class="hop-time">' + escHtml(time) + '</span>' +
-        '<span class="hop-service ' + escHtml(t.service) + '">' + escHtml(t.service) + '</span>' +
-        '<span class="hop-label">' + escHtml(t.label) + '</span>' +
-        (t.durationMs > 0 ? '<span class="hop-duration">' + (t.durationMs >= 1000 ? (t.durationMs / 1000).toFixed(2) + 's' : t.durationMs + 'ms') + '</span>' : '') +
-        '<span class="hop-status">' + (isError ? '❌' : '✅') + '</span>' +
-      '</div>' +
-      '<div class="trace-hop-detail' + (wasExpanded ? ' open' : '') + '">' +
-        '<div><strong>时间:</strong> ' + escHtml(t.timestamp) + '</div>' +
-        '<div><strong>服务:</strong> ' + escHtml(t.service) + '</div>' +
-        '<div><strong>节点:</strong> ' + escHtml(t.hop) + '</div>' +
-        '<div><strong>标签:</strong> ' + escHtml(t.label) + '</div>' +
-        (t.durationMs > 0 ? '<div><strong>耗时:</strong> ' + (t.durationMs >= 1000 ? (t.durationMs / 1000).toFixed(2) + 's' : t.durationMs + 'ms') + '</div>' : '') +
-        '<div><strong>状态:</strong> ' + (isError ? '❌ 失败' : '✅ 成功') + '</div>' +
-        (t.detail ? '<div style="margin-top:6px"><strong>详情:</strong><br>' + escHtml(String(t.detail)) + '</div>' : '') +
-      '</div>';
+      '<div class="trace-summary-item">💬 Session: <code style="font-size:10px">' + escHtml((s.session_id || '').substring(0, 20)) + '...</code></div>' +
+      '<div class="trace-summary-item">👤 User: ' + escHtml(s.user_id || '—') + '</div>';
   }
+  statsEl.innerHTML = html;
+}
 
-  html += '</div>';
-  contentEl.innerHTML = html;
+// 转换 SSE 推送的 LLM CallRecord 为 trace 格式
+function llmCallToTrace(call) {
+  var ts = call.time ? new Date(call.time).getTime() : Date.now();
+  return {
+    id: 'llm-' + ts + '-' + Math.random().toString(36).slice(2, 6),
+    timestamp: new Date(ts).toISOString(),
+    ts: ts,
+    service: 'ai-core',
+    hop: 'llm_call',
+    label: 'LLM 调用: ' + (call.model || 'unknown'),
+    status: call.success ? 'success' : 'error',
+    durationMs: call.duration_ms || call.Duration || 0,
+    detail: call.error || (call.prompt_tokens || 0) + '+' + (call.completion_tokens || 0) + ' tokens',
+    data: call
+  };
 }
 
 function toggleTraceHop(el) {

ethend/src/index.js

@@ -1286,7 +1286,7 @@ app.get('/api/trace/recent', async (req, res) => {
     const traces = [];
 
     // LLM 调用 → 追踪节点
-    const llmCalls = Array.isArray(llmResult.body) ? llmResult.body : [];
+    const llmCalls = Array.isArray(llmResult.body) ? llmResult.body : (llmResult.body?.calls || []);
     for (const call of llmCalls) {
       const ts = call.time ? new Date(call.time).getTime() : Date.now();
       traces.push({
@@ -1432,7 +1432,7 @@ app.get('/api/trace/session/:sessionId', async (req, res) => {
     }
 
     // LLM 调用记录中如果有 session 相关信息也加入
-    const llmCalls = Array.isArray(llmResult.body) ? llmResult.body : [];
+    const llmCalls = Array.isArray(llmResult.body) ? llmResult.body : (llmResult.body?.calls || []);
     for (const call of llmCalls) {
       const ts = call.time ? new Date(call.time).getTime() : Date.now();
       traces.push({