feat: ASR语音转写管线 + 群聊身份混淆修复

- 新增ASR语音识别管线: QQ语音→下载音频→qwen3-asr-flash转录→注入用户消息
- 模型名称全部从models.json路由获取，无硬编码
- 修复群聊中AI将非管理员用户误称为管理员昵称(叶酱)的问题
  - 助手回复缓存时标注[回复 昵称 (UID)]，防止对话历史中身份混淆
  - 群聊上下文指令改为肯定性表述，移除具体名称提及
- trace面板时间戳改为YYYY-MM-DD HH:MM:SS格式，耗时统一显示为秒
- 修复Go time.Duration纳秒值在前端显示问题(Duration/1e6转毫秒)
- 新增video_tool插件模板
- 优化OpenAI adapter reasoning_content处理

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

backend/platform-bridge/cmd/main.go

@@ -56,9 +56,10 @@ func main() {
 	mapper := bridge.NewIdentityMapper()
 	checker := permissions.NewChecker()
 	router := bridge.NewPlatformRouter(mapper, checker)
+	lastDisplayNames := make(map[string]string) // platformUID -> last known display name
 
 	// Seed default identities from environment.
-	seedIdentities(mapper, configStore)
+	seedIdentities(mapper, configStore, cfg.AdminNickname)
 
 	// Register platform adapters based on stored configs or defaults.
 	adapters := createAdapters(cfg, configStore)
@@ -85,6 +86,27 @@ func main() {
 
 		// Routing decisions.
 		isAdmin := mapper.IsAdmin(msg.Platform, msg.OriginalSenderUID)
+		adminNick := cfg.AdminNickname
+		if isAdmin {
+			if id := mapper.ResolveOrNil(msg.Platform, msg.OriginalSenderUID); id != nil && id.Nickname != "" {
+				adminNick = id.Nickname
+			}
+			// Track per-group display names (群名片 can differ across groups).
+			nameKey := msg.OriginalSenderUID
+			if msg.ChannelType == "group" {
+				nameKey = msg.OriginalSenderUID + ":" + msg.ChannelID
+			}
+			if prevName, ok := lastDisplayNames[nameKey]; ok && prevName != msg.OriginalSenderName && msg.OriginalSenderName != "" {
+				ctx := msg.ChannelID
+				if msg.GroupName != "" {
+					ctx = truncateString(msg.GroupName, 8)
+				}
+				msg.Content = fmt.Sprintf("【昵称更新：该用户在%s(%s)上的昵称已从\"%s\"变更为\"%s\"】\n%s", ctx, msg.Platform, prevName, msg.OriginalSenderName, msg.Content)
+			}
+			if msg.OriginalSenderName != "" {
+				lastDisplayNames[nameKey] = msg.OriginalSenderName
+			}
+		}
 		isMentioned, _ := detectAdminMention(msg, mapper, cfg)
 		isBotMentioned := msg.BotUID != "" && containsString(msg.Mentions, msg.BotUID)
 		isSilent := cfg.PlatformSilentEnabled && !isAdmin && !isBotMentioned
@@ -107,9 +129,11 @@ func main() {
 				senderLabel = msg.SenderName
 			}
 			if isAdmin {
-				senderLabel = "【管理员】" + msg.OriginalSenderName
+				senderLabel = adminNick + "/" + msg.OriginalSenderName
 			}
 			msg.Content = fmt.Sprintf("[群聊 %s] %s (%s)：\n%s", groupLabel, senderLabel, msg.OriginalSenderUID, msg.Content)
+		} else if msg.ChannelType == "private" {
+			msg.Content = fmt.Sprintf("【私聊 %s】%s/%s (%s)：\n%s", msg.Platform, adminNick, msg.OriginalSenderName, msg.OriginalSenderUID, msg.Content)
 		}
 
 		// Blocklist/whitelist check (admin always bypasses).
@@ -137,6 +161,8 @@ func main() {
 
 		// Extract image URLs for vision/OCR processing (admin + bot-mentioned + admin-mentioned only).
 		imageURLs := getImageURLs(msg)
+		videoURLs := getShortVideoURLs(msg)
+		voiceURLs := getVoiceURLs(msg)
 
 		// For group chats, use a channel-based user ID to share context between admin and regular users.
 		chatUserID := msg.SenderID
@@ -149,32 +175,32 @@ func main() {
 		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)
+			response, routeErr = forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil, videoURLs, voiceURLs, isAdmin)
 
 		case isAdmin && !isBotMentioned && shouldAdminBeSilent(msg, router):
 			msg.RouteType = "silent"
 			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
-			response, routeErr = forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil)
+			response, routeErr = forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil, videoURLs, voiceURLs, isAdmin)
 
 		case isAdmin:
 			msg.RouteType = "normal"
-			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, imageURLs)
+			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, imageURLs, videoURLs, voiceURLs, isAdmin)
 
 		case isBotMentioned:
 			msg.RouteType = "normal"
-			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, imageURLs)
+			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, imageURLs, videoURLs, voiceURLs, isAdmin)
 
 		case isMentioned:
 			// Non-admin user mentioned an admin. Don't respond in channel —
 			// the admin already gets QQ's native @notification. Observe silently.
 			msg.RouteType = "silent"
 			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
-			response, routeErr = forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil)
+			response, routeErr = forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil, videoURLs, voiceURLs, isAdmin)
 
 		case isSilent:
 			msg.RouteType = "silent"
 			namespace := buildMemoryNamespace(msg.Platform, msg.ChannelType, msg.ChannelID)
-			silentResponse, silentErr := forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil)
+			silentResponse, silentErr := forwardToAICore(cfg, msg, "platform_silent", namespace, namespace, nil, videoURLs, voiceURLs, isAdmin)
 			if silentErr != nil {
 				msgLogger.Log(logging.LogEntry{
 					Timestamp:  time.Now(),
@@ -192,7 +218,7 @@ func main() {
 
 		default:
 			msg.RouteType = "normal"
-			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, nil)
+			response, routeErr = forwardToAICore(cfg, msg, "text", chatUserID, groupSessionID, nil, videoURLs, voiceURLs, isAdmin)
 		}
 
 		if routeErr != nil {
@@ -261,7 +287,7 @@ func main() {
 				fmt.Printf("Platform adapter hot-reloaded: %s\n", name)
 			}
 			// Sync admin identities from config fields.
-			syncAdminUIDs(mapper, platform, fields)
+			syncAdminUIDs(mapper, platform, fields, cfg.AdminNickname)
 			// Restart QQ reader when QQ config changes.
 			if platform == "qq" {
 				startQQReaders(router)
@@ -559,9 +585,36 @@ func getImageURLs(msg *bridge.UnifiedMessage) []string {
 	return urls
 }
 
+// getVoiceURLs extracts voice/record attachment URLs from a UnifiedMessage.
+func getVoiceURLs(msg *bridge.UnifiedMessage) []string {
+	if len(msg.Attachments) == 0 {
+		return nil
+	}
+	var urls []string
+	for _, a := range msg.Attachments {
+		if a.Type == "voice" && a.URL != "" {
+			urls = append(urls, a.URL)
+		}
+	}
+	return urls
+}
+
+// getShortVideoURLs returns video URLs with duration ≤ 20 seconds.
+func getShortVideoURLs(msg *bridge.UnifiedMessage) []string {
+	if len(msg.Attachments) == 0 {
+		return nil
+	}
+	var urls []string
+	for _, a := range msg.Attachments {
+		if a.Type == "video" && a.URL != "" && a.Duration > 0 && a.Duration <= 20 {
+			urls = append(urls, a.URL)
+		}
+	}
+	return urls
+}
+
 // forwardToAICore sends a unified message to AI-Core's chat endpoint and returns the response.
-// If images is non-empty, they are passed as URL strings for AI-Core to download and process.
-func forwardToAICore(cfg *config.Config, msg *bridge.UnifiedMessage, mode, userID, sessionID string, images []string) (*bridge.UnifiedResponse, error) {
+func forwardToAICore(cfg *config.Config, msg *bridge.UnifiedMessage, mode, userID, sessionID string, images []string, videoURLs []string, voiceURLs []string, isAdmin bool) (*bridge.UnifiedResponse, error) {
 	bodyMap := map[string]interface{}{
 		"user_id":    userID,
 		"session_id": sessionID,
@@ -569,6 +622,7 @@ func forwardToAICore(cfg *config.Config, msg *bridge.UnifiedMessage, mode, userI
 		"mode":       mode,
 		"routing":    msg.RouteType,
 		"nickname":   fmt.Sprintf("%s (%s)", msg.SenderName, msg.OriginalSenderUID),
+		"is_admin": isAdmin,
 		"source": map[string]string{
 			"platform":      msg.Platform,
 			"channel_id":    msg.ChannelID,
@@ -580,6 +634,12 @@ func forwardToAICore(cfg *config.Config, msg *bridge.UnifiedMessage, mode, userI
 	if len(images) > 0 {
 		bodyMap["images"] = images
 	}
+	if len(videoURLs) > 0 {
+		bodyMap["video_urls"] = videoURLs
+	}
+	if len(voiceURLs) > 0 {
+		bodyMap["voice_urls"] = voiceURLs
+	}
 	reqBody, _ := json.Marshal(bodyMap)
 
 	url := cfg.AICoreURL + "/api/v1/chat"
@@ -829,7 +889,7 @@ func parseIntOr(s string, defaultVal int) int {
 }
 
 // seedIdentities loads default identity mappings from env vars and stored platform configs.
-func seedIdentities(m *bridge.IdentityMapper, store *config.Store) {
+func seedIdentities(m *bridge.IdentityMapper, store *config.Store, adminNickname string) {
 	// From environment variables.
 	for _, entry := range []struct{ envKey, platform string }{
 		{"QQ_ADMIN_UID", "qq"},
@@ -845,7 +905,7 @@ func seedIdentities(m *bridge.IdentityMapper, store *config.Store) {
 					Platform:        entry.platform,
 					PlatformUID:     uid,
 					CyreneUser:      "admin",
-					Nickname:        "开拓者",
+					Nickname:        adminNickname,
 					PermissionLevel: "admin",
 				})
 			}
@@ -858,13 +918,13 @@ func seedIdentities(m *bridge.IdentityMapper, store *config.Store) {
 		if stored == nil {
 			continue
 		}
-		syncAdminUIDs(m, name, stored.Fields)
+		syncAdminUIDs(m, name, stored.Fields, adminNickname)
 	}
 }
 
 // syncAdminUIDs registers admin identities from a platform config's admin_uids field.
 // Comma-separated list of platform UIDs.
-func syncAdminUIDs(m *bridge.IdentityMapper, platform string, fields map[string]string) {
+func syncAdminUIDs(m *bridge.IdentityMapper, platform string, fields map[string]string, adminNickname string) {
 	raw, ok := fields["admin_uids"]
 	if !ok || raw == "" {
 		return
@@ -878,7 +938,7 @@ func syncAdminUIDs(m *bridge.IdentityMapper, platform string, fields map[string]
 			Platform:        platform,
 			PlatformUID:     uid,
 			CyreneUser:      "admin",
-			Nickname:        "开拓者",
+			Nickname:        adminNickname,
 			PermissionLevel: "admin",
 		})
 	}