Update config.yaml

config.yaml

@@ -10,7 +10,7 @@
 # ============================================
 
 # 前端显示的版本号（可选，不填则显示默认版本）
-version: "v1.4.8"
+version: "v1.4.10"
 # 服务器配置
 server:
   host: 0.0.0.0 # 监听地址，0.0.0.0 表示监听所有网络接口

internal/app/app.go

@@ -664,6 +664,7 @@ func setupRoutes(
 		protected.GET("/messages/:id/process-details", conversationHandler.GetMessageProcessDetails)
 		protected.PUT("/conversations/:id", conversationHandler.UpdateConversation)
 		protected.DELETE("/conversations/:id", conversationHandler.DeleteConversation)
+		protected.POST("/conversations/:id/delete-turn", conversationHandler.DeleteConversationTurn)
 		protected.PUT("/conversations/:id/pinned", groupHandler.UpdateConversationPinned)
 
 		// 对话分组

internal/database/conversation.go

@@ -4,6 +4,7 @@ import (
 	"database/sql"
 	"encoding/json"
 	"fmt"
+	"strings"
 	"time"
 
 	"github.com/google/uuid"
@@ -553,6 +554,102 @@ func (db *DB) GetMessages(conversationID string) ([]Message, error) {
 	return messages, nil
 }
 
+// turnSliceRange 根据任意一条消息 ID 定位「一轮对话」在 msgs 中的 [start, end) 下标区间（msgs 须已按时间升序，与 GetMessages 一致）。
+// 一轮 = 从某条 user 消息起，至下一条 user 之前（含中间所有 assistant）。
+func turnSliceRange(msgs []Message, anchorID string) (start, end int, err error) {
+	idx := -1
+	for i := range msgs {
+		if msgs[i].ID == anchorID {
+			idx = i
+			break
+		}
+	}
+	if idx < 0 {
+		return 0, 0, fmt.Errorf("message not found")
+	}
+	start = idx
+	for start > 0 && msgs[start].Role != "user" {
+		start--
+	}
+	if start < len(msgs) && msgs[start].Role != "user" {
+		start = 0
+	}
+	end = len(msgs)
+	for i := start + 1; i < len(msgs); i++ {
+		if msgs[i].Role == "user" {
+			end = i
+			break
+		}
+	}
+	return start, end, nil
+}
+
+// DeleteConversationTurn 删除锚点所在轮次的全部消息（用户提问 + 该轮助手回复等），并清空 last_react_*，避免与消息表不一致。
+func (db *DB) DeleteConversationTurn(conversationID, anchorMessageID string) (deletedIDs []string, err error) {
+	msgs, err := db.GetMessages(conversationID)
+	if err != nil {
+		return nil, err
+	}
+	start, end, err := turnSliceRange(msgs, anchorMessageID)
+	if err != nil {
+		return nil, err
+	}
+	if start >= end {
+		return nil, fmt.Errorf("empty turn range")
+	}
+	deletedIDs = make([]string, 0, end-start)
+	for i := start; i < end; i++ {
+		deletedIDs = append(deletedIDs, msgs[i].ID)
+	}
+
+	tx, err := db.Begin()
+	if err != nil {
+		return nil, fmt.Errorf("begin tx: %w", err)
+	}
+	defer func() { _ = tx.Rollback() }()
+
+	ph := strings.Repeat("?,", len(deletedIDs))
+	ph = ph[:len(ph)-1]
+	args := make([]interface{}, 0, 1+len(deletedIDs))
+	args = append(args, conversationID)
+	for _, id := range deletedIDs {
+		args = append(args, id)
+	}
+	res, err := tx.Exec(
+		"DELETE FROM messages WHERE conversation_id = ? AND id IN ("+ph+")",
+		args...,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("delete messages: %w", err)
+	}
+	n, err := res.RowsAffected()
+	if err != nil {
+		return nil, err
+	}
+	if int(n) != len(deletedIDs) {
+		return nil, fmt.Errorf("deleted count mismatch")
+	}
+
+	_, err = tx.Exec(
+		`UPDATE conversations SET last_react_input = NULL, last_react_output = NULL, updated_at = ? WHERE id = ?`,
+		time.Now(), conversationID,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("clear react data: %w", err)
+	}
+
+	if err := tx.Commit(); err != nil {
+		return nil, fmt.Errorf("commit: %w", err)
+	}
+
+	db.logger.Info("conversation turn deleted",
+		zap.String("conversationId", conversationID),
+		zap.Strings("deletedMessageIds", deletedIDs),
+		zap.Int("count", len(deletedIDs)),
+	)
+	return deletedIDs, nil
+}
+
 // ProcessDetail 过程详情事件
 type ProcessDetail struct {
 	ID             string    `json:"id"`

internal/database/conversation_turn_test.go

@@ -0,0 +1,39 @@
+package database
+
+import (
+	"testing"
+)
+
+func TestTurnSliceRange(t *testing.T) {
+	mk := func(id, role string) Message {
+		return Message{ID: id, Role: role}
+	}
+	msgs := []Message{
+		mk("u1", "user"),
+		mk("a1", "assistant"),
+		mk("u2", "user"),
+		mk("a2", "assistant"),
+	}
+	cases := []struct {
+		anchor string
+		start  int
+		end    int
+	}{
+		{"u1", 0, 2},
+		{"a1", 0, 2},
+		{"u2", 2, 4},
+		{"a2", 2, 4},
+	}
+	for _, tc := range cases {
+		s, e, err := turnSliceRange(msgs, tc.anchor)
+		if err != nil {
+			t.Fatalf("anchor %s: %v", tc.anchor, err)
+		}
+		if s != tc.start || e != tc.end {
+			t.Fatalf("anchor %s: got [%d,%d) want [%d,%d)", tc.anchor, s, e, tc.start, tc.end)
+		}
+	}
+	if _, _, err := turnSliceRange(msgs, "nope"); err == nil {
+		t.Fatal("expected error for missing id")
+	}
+}

internal/handler/agent.go

@@ -1256,7 +1256,7 @@ func (h *AgentHandler) AgentLoopStream(c *gin.Context) {
 
 	// 保存用户消息：有附件时一并保存附件名与路径，刷新后显示、继续对话时大模型也能从历史中拿到路径
 	userContent := userMessageContentForStorage(req.Message, req.Attachments, savedPaths)
-	_, err = h.db.AddMessage(conversationID, "user", userContent, nil)
+	userMsgRow, err := h.db.AddMessage(conversationID, "user", userContent, nil)
 	if err != nil {
 		h.logger.Error("保存用户消息失败", zap.Error(err))
 	}
@@ -1275,6 +1275,14 @@ func (h *AgentHandler) AgentLoopStream(c *gin.Context) {
 		assistantMessageID = assistantMsg.ID
 	}
 
+	// 尽早下发消息 ID，便于前端在流式结束前挂上「删除本轮」等（无需等整段结束再刷新）
+	if userMsgRow != nil {
+		sendEvent("message_saved", "", map[string]interface{}{
+			"conversationId": conversationID,
+			"userMessageId":  userMsgRow.ID,
+		})
+	}
+
 	// 创建进度回调函数，复用统一逻辑
 	progressCallback := h.createProgressCallback(conversationID, assistantMessageID, sendEvent)
 

internal/handler/chat_uploads.go

@@ -93,22 +93,27 @@ func (h *ChatUploadsHandler) List(c *gin.Context) {
 		return
 	}
 	var files []ChatUploadFileItem
+	var folders []string
 	err = filepath.WalkDir(root, func(path string, d os.DirEntry, walkErr error) error {
 		if walkErr != nil {
 			return walkErr
 		}
+		rel, err := filepath.Rel(root, path)
+		if err != nil {
+			return err
+		}
+		if rel == "." {
+			return nil
+		}
+		relSlash := filepath.ToSlash(rel)
 		if d.IsDir() {
+			folders = append(folders, relSlash)
 			return nil
 		}
 		info, err := d.Info()
 		if err != nil {
 			return err
 		}
-		rel, err := filepath.Rel(root, path)
-		if err != nil {
-			return err
-		}
-		relSlash := filepath.ToSlash(rel)
 		parts := strings.Split(relSlash, "/")
 		var dateStr, convID string
 		if len(parts) >= 2 {
@@ -142,10 +147,31 @@ func (h *ChatUploadsHandler) List(c *gin.Context) {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
 		return
 	}
+	if conversationFilter != "" {
+		filteredFolders := make([]string, 0, len(folders))
+		for _, rel := range folders {
+			parts := strings.Split(rel, "/")
+			if len(parts) >= 2 && parts[1] == conversationFilter {
+				filteredFolders = append(filteredFolders, rel)
+				continue
+			}
+			if len(parts) == 1 {
+				prefix := rel + "/"
+				for _, f := range files {
+					if strings.HasPrefix(f.RelativePath, prefix) {
+						filteredFolders = append(filteredFolders, rel)
+						break
+					}
+				}
+			}
+		}
+		folders = filteredFolders
+	}
+	sort.Strings(folders)
 	sort.Slice(files, func(i, j int) bool {
 		return files[i].ModifiedUnix > files[j].ModifiedUnix
 	})
-	c.JSON(http.StatusOK, gin.H{"files": files})
+	c.JSON(http.StatusOK, gin.H{"files": files, "folders": folders})
 }
 
 // Download GET /api/chat-uploads/download?path=...

internal/handler/conversation.go

@@ -190,3 +190,44 @@ func (h *ConversationHandler) DeleteConversation(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"message": "删除成功"})
 }
 
+// DeleteTurnRequest 删除一轮对话（POST /api/conversations/:id/delete-turn）
+type DeleteTurnRequest struct {
+	MessageID string `json:"messageId"`
+}
+
+// DeleteConversationTurn 删除锚点消息所在轮次（从该轮 user 到下一轮 user 之前），并清空 last_react_*。
+func (h *ConversationHandler) DeleteConversationTurn(c *gin.Context) {
+	conversationID := c.Param("id")
+	if conversationID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "conversation id required"})
+		return
+	}
+
+	var req DeleteTurnRequest
+	if err := c.ShouldBindJSON(&req); err != nil || req.MessageID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "messageId required"})
+		return
+	}
+
+	if _, err := h.db.GetConversation(conversationID); err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "对话不存在"})
+		return
+	}
+
+	deletedIDs, err := h.db.DeleteConversationTurn(conversationID, req.MessageID)
+	if err != nil {
+		h.logger.Warn("删除对话轮次失败",
+			zap.String("conversationId", conversationID),
+			zap.String("messageId", req.MessageID),
+			zap.Error(err),
+		)
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"deletedMessageIds": deletedIDs,
+		"message":           "ok",
+	})
+}
+

internal/handler/multi_agent.go

@@ -103,6 +103,13 @@ func (h *AgentHandler) MultiAgentLoopStream(c *gin.Context) {
 	conversationID := prep.ConversationID
 	assistantMessageID := prep.AssistantMessageID
 
+	if prep.UserMessageID != "" {
+		sendEvent("message_saved", "", map[string]interface{}{
+			"conversationId": conversationID,
+			"userMessageId":  prep.UserMessageID,
+		})
+	}
+
 	progressCallback := h.createProgressCallback(conversationID, assistantMessageID, sendEvent)
 
 	baseCtx, cancelWithCause := context.WithCancelCause(context.Background())

internal/handler/multi_agent_prepare.go

@@ -19,6 +19,7 @@ type multiAgentPrepared struct {
 	FinalMessage       string
 	RoleTools          []string
 	AssistantMessageID string
+	UserMessageID      string
 }
 
 func (h *AgentHandler) prepareMultiAgentSession(req *ChatRequest) (*multiAgentPrepared, error) {
@@ -109,9 +110,14 @@ func (h *AgentHandler) prepareMultiAgentSession(req *ChatRequest) (*multiAgentPr
 	finalMessage = appendAttachmentsToMessage(finalMessage, req.Attachments, savedPaths)
 
 	userContent := userMessageContentForStorage(req.Message, req.Attachments, savedPaths)
-	if _, err = h.db.AddMessage(conversationID, "user", userContent, nil); err != nil {
-		h.logger.Error("保存用户消息失败", zap.Error(err))
-		return nil, fmt.Errorf("保存用户消息失败: %w", err)
+	userMsgRow, uerr := h.db.AddMessage(conversationID, "user", userContent, nil)
+	if uerr != nil {
+		h.logger.Error("保存用户消息失败", zap.Error(uerr))
+		return nil, fmt.Errorf("保存用户消息失败: %w", uerr)
+	}
+	userMessageID := ""
+	if userMsgRow != nil {
+		userMessageID = userMsgRow.ID
 	}
 
 	assistantMsg, aerr := h.db.AddMessage(conversationID, "assistant", "处理中...", nil)
@@ -129,5 +135,6 @@ func (h *AgentHandler) prepareMultiAgentSession(req *ChatRequest) (*multiAgentPr
 		FinalMessage:       finalMessage,
 		RoleTools:          roleTools,
 		AssistantMessageID: assistantMessageID,
+		UserMessageID:      userMessageID,
 	}, nil
 }

internal/mcp/server.go

@@ -444,7 +444,7 @@ func (s *Server) handleCallTool(msg *Message) *Message {
 		}
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute)
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Minute)
 	defer cancel()
 
 	s.logger.Info("开始执行工具",

internal/security/executor.go

@@ -6,7 +6,9 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"os"
 	"os/exec"
+	"runtime"
 	"strconv"
 	"strings"
 	"sync"
@@ -16,6 +18,7 @@ import (
 	"cyberstrike-ai/internal/mcp"
 	"cyberstrike-ai/internal/storage"
 
+	"github.com/creack/pty"
 	"go.uber.org/zap"
 )
 
@@ -149,6 +152,7 @@ func (e *Executor) ExecuteTool(ctx context.Context, toolName string, args map[st
 
 	// 执行命令
 	cmd := exec.CommandContext(ctx, toolConfig.Command, cmdArgs...)
+	applyDefaultTerminalEnv(cmd)
 
 	e.logger.Info("执行安全工具",
 		zap.String("tool", toolName),
@@ -160,10 +164,26 @@ func (e *Executor) ExecuteTool(ctx context.Context, toolName string, args map[st
 	// 如果上层提供了 stdout/stderr 增量回调，则边执行边读取并回调。
 	if cb, ok := ctx.Value(ToolOutputCallbackCtxKey).(ToolOutputCallback); ok && cb != nil {
 		output, err = streamCommandOutput(cmd, cb)
+		if err != nil && shouldRetryWithPTY(output) {
+			e.logger.Info("检测到工具需要 TTY，使用 PTY 重试",
+				zap.String("tool", toolName),
+			)
+			cmd2 := exec.CommandContext(ctx, toolConfig.Command, cmdArgs...)
+			applyDefaultTerminalEnv(cmd2)
+			output, err = runCommandWithPTY(ctx, cmd2, cb)
+		}
 	} else {
 		outputBytes, err2 := cmd.CombinedOutput()
 		output = string(outputBytes)
 		err = err2
+		if err != nil && shouldRetryWithPTY(output) {
+			e.logger.Info("检测到工具需要 TTY，使用 PTY 重试",
+				zap.String("tool", toolName),
+			)
+			cmd2 := exec.CommandContext(ctx, toolConfig.Command, cmdArgs...)
+			applyDefaultTerminalEnv(cmd2)
+			output, err = runCommandWithPTY(ctx, cmd2, nil)
+		}
 	}
 	if err != nil {
 		// 检查退出码是否在允许列表中
@@ -956,10 +976,28 @@ func (e *Executor) executeSystemCommand(ctx context.Context, args map[string]int
 	// 若上层提供工具输出增量回调，则边执行边流式读取。
 	if cb, ok := ctx.Value(ToolOutputCallbackCtxKey).(ToolOutputCallback); ok && cb != nil {
 		output, err = streamCommandOutput(cmd, cb)
+		if err != nil && shouldRetryWithPTY(output) {
+			e.logger.Info("检测到系统命令需要 TTY，使用 PTY 重试")
+			cmd2 := exec.CommandContext(ctx, shell, "-c", command)
+			if workDir != "" {
+				cmd2.Dir = workDir
+			}
+			applyDefaultTerminalEnv(cmd2)
+			output, err = runCommandWithPTY(ctx, cmd2, cb)
+		}
 	} else {
 		outputBytes, err2 := cmd.CombinedOutput()
 		output = string(outputBytes)
 		err = err2
+		if err != nil && shouldRetryWithPTY(output) {
+			e.logger.Info("检测到系统命令需要 TTY，使用 PTY 重试")
+			cmd2 := exec.CommandContext(ctx, shell, "-c", command)
+			if workDir != "" {
+				cmd2.Dir = workDir
+			}
+			applyDefaultTerminalEnv(cmd2)
+			output, err = runCommandWithPTY(ctx, cmd2, nil)
+		}
 	}
 	if err != nil {
 		e.logger.Error("系统命令执行失败",
@@ -1066,6 +1104,123 @@ func streamCommandOutput(cmd *exec.Cmd, cb ToolOutputCallback) (string, error) {
 	return outBuilder.String(), waitErr
 }
 
+// applyDefaultTerminalEnv 为外部工具补齐常见的终端环境变量。
+// 注意：这不会创建 TTY，只是减少某些工具在非交互环境下的“奇怪排版/检测失败”。
+func applyDefaultTerminalEnv(cmd *exec.Cmd) {
+	if cmd == nil {
+		return
+	}
+	// 仅在未显式设置 Env 时，继承当前进程环境
+	if cmd.Env == nil {
+		cmd.Env = os.Environ()
+	}
+	// 如果用户已设置 TERM/COLUMNS/LINES，则不覆盖
+	has := func(k string) bool {
+		prefix := k + "="
+		for _, e := range cmd.Env {
+			if strings.HasPrefix(e, prefix) {
+				return true
+			}
+		}
+		return false
+	}
+	if !has("TERM") {
+		cmd.Env = append(cmd.Env, "TERM=xterm-256color")
+	}
+	if !has("COLUMNS") {
+		cmd.Env = append(cmd.Env, "COLUMNS=256")
+	}
+	if !has("LINES") {
+		cmd.Env = append(cmd.Env, "LINES=40")
+	}
+}
+
+func shouldRetryWithPTY(output string) bool {
+	o := strings.ToLower(output)
+	// autorecon / python termios 常见报错
+	if strings.Contains(o, "inappropriate ioctl for device") {
+		return true
+	}
+	if strings.Contains(o, "termios.error") {
+		return true
+	}
+	// 兜底：stdin 不是 tty
+	if strings.Contains(o, "not a tty") {
+		return true
+	}
+	return false
+}
+
+// runCommandWithPTY 为子进程分配 PTY，适配需要交互式终端的工具（如 autorecon）。
+// 若 cb != nil，将持续回调增量输出（用于 SSE）。
+func runCommandWithPTY(ctx context.Context, cmd *exec.Cmd, cb ToolOutputCallback) (string, error) {
+	if runtime.GOOS == "windows" {
+		// PTY 方案为类 Unix；Windows 走原逻辑
+		if cb != nil {
+			return streamCommandOutput(cmd, cb)
+		}
+		out, err := cmd.CombinedOutput()
+		return string(out), err
+	}
+
+	ptmx, err := pty.Start(cmd)
+	if err != nil {
+		return "", err
+	}
+	defer func() { _ = ptmx.Close() }()
+
+	// ctx 取消时尽快终止子进程
+	done := make(chan struct{})
+	go func() {
+		select {
+		case <-ctx.Done():
+			_ = ptmx.Close() // 触发读退出
+			if cmd.Process != nil {
+				_ = cmd.Process.Kill()
+			}
+		case <-done:
+		}
+	}()
+	defer close(done)
+
+	var outBuilder strings.Builder
+	var deltaBuilder strings.Builder
+	lastFlush := time.Now()
+	flush := func() {
+		if cb == nil || deltaBuilder.Len() == 0 {
+			deltaBuilder.Reset()
+			lastFlush = time.Now()
+			return
+		}
+		cb(deltaBuilder.String())
+		deltaBuilder.Reset()
+		lastFlush = time.Now()
+	}
+
+	buf := make([]byte, 4096)
+	for {
+		n, readErr := ptmx.Read(buf)
+		if n > 0 {
+			chunk := string(buf[:n])
+			// 统一换行为 \n，避免前端错位
+			chunk = strings.ReplaceAll(chunk, "\r\n", "\n")
+			chunk = strings.ReplaceAll(chunk, "\r", "\n")
+			outBuilder.WriteString(chunk)
+			deltaBuilder.WriteString(chunk)
+			if deltaBuilder.Len() >= 2048 || time.Since(lastFlush) >= 200*time.Millisecond {
+				flush()
+			}
+		}
+		if readErr != nil {
+			break
+		}
+	}
+	flush()
+
+	waitErr := cmd.Wait()
+	return outBuilder.String(), waitErr
+}
+
 // executeInternalTool 执行内部工具（不执行外部命令）
 func (e *Executor) executeInternalTool(ctx context.Context, toolName string, command string, args map[string]interface{}) (*mcp.ToolResult, error) {
 	// 提取内部工具类型（去掉 "internal:" 前缀）

web/static/css/style.css

@@ -1573,6 +1573,81 @@ header {
     letter-spacing: 0.01em;
 }
 
+/* 时间戳 + 删除本轮（与气泡分离，和「展开详情」同一视觉层级） */
+.message-meta-footer {
+    display: flex;
+    flex-direction: row;
+    align-items: center; /* 与时间戳、删除钮统一垂直居中 */
+    gap: 8px;
+    margin-top: 6px;
+    flex-wrap: wrap;
+    width: 100%;
+    min-height: 28px;
+}
+
+.message.user .message-meta-footer {
+    justify-content: flex-end;
+}
+
+.message.assistant .message-meta-footer {
+    justify-content: flex-start;
+}
+
+.message-delete-turn-btn {
+    position: static;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 28px;
+    height: 28px;
+    padding: 0;
+    border: 1px solid transparent;
+    border-radius: 6px;
+    background: transparent;
+    color: var(--text-secondary, #888);
+    cursor: pointer;
+    opacity: 0.5;
+    flex-shrink: 0;
+    transition: opacity 0.2s ease, color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
+}
+
+.message:hover .message-meta-footer .message-delete-turn-btn {
+    opacity: 0.85;
+}
+
+.message-delete-turn-btn:hover {
+    color: #c62828;
+    background: rgba(198, 40, 40, 0.07);
+    border-color: rgba(198, 40, 40, 0.15);
+    opacity: 1;
+}
+
+.message-delete-turn-btn:focus-visible {
+    opacity: 1;
+    outline: 2px solid var(--accent-color, #0066ff);
+    outline-offset: 1px;
+}
+
+/* 与删除钮同一行时：去掉时间戳默认 margin-top，避免文字偏低、图标显「高」 */
+.message-meta-footer .message-time {
+    margin-top: 0;
+    display: inline-flex;
+    align-items: center;
+    min-height: 28px;
+    line-height: 1.3;
+}
+
+.message-delete-turn-btn svg {
+    display: block;
+    flex-shrink: 0;
+}
+
+@media (hover: none) {
+    .message-delete-turn-btn {
+        opacity: 0.65;
+    }
+}
+
 /* 用户消息中的表格样式 */
 .message.user .message-bubble .table-wrapper {
     scrollbar-color: rgba(255, 255, 255, 0.3) transparent;

web/static/i18n/en-US.json

@@ -138,6 +138,9 @@
     "expandDetail": "Expand details",
     "noProcessDetail": "No process details (execution may be too fast or no detailed events)",
     "copyMessageTitle": "Copy message",
+    "deleteTurnTitle": "Delete this turn",
+    "deleteTurnConfirm": "Delete this entire turn (user message and assistant reply)? This cannot be undone. The next reply will use only the remaining messages; saved context snapshots will be cleared.",
+    "deleteTurnFailed": "Failed to delete turn",
     "emptyGroupConversations": "This group has no conversations yet.",
     "noMatchingConversationsInGroup": "No matching conversations found.",
     "noHistoryConversations": "No conversation history yet",
@@ -1107,6 +1110,7 @@
     "folderPathCopied": "Folder path copied — paste into chat if needed",
     "folderEmpty": "This folder is empty",
     "confirmDeleteFolder": "Delete this folder and everything inside it? This cannot be undone.",
+    "folderRemovedStale": "That folder is not on the server anymore; list refreshed.",
     "deleteFolderTitle": "Delete folder",
     "uploadToFolderTitle": "Upload file into this folder",
     "newFolderButton": "New folder",

web/static/i18n/zh-CN.json

@@ -138,6 +138,9 @@
     "expandDetail": "展开详情",
     "noProcessDetail": "暂无过程详情（可能执行过快或未触发详细事件）",
     "copyMessageTitle": "复制消息内容",
+    "deleteTurnTitle": "删除本轮对话",
+    "deleteTurnConfirm": "确定删除本轮对话？将同时删除该轮用户消息与助手回复，且无法恢复；下次模型回复将仅基于剩余消息（已保存的上下文快照会清空并按剩余内容重建）。",
+    "deleteTurnFailed": "删除本轮失败",
     "emptyGroupConversations": "该分组暂无对话",
     "noMatchingConversationsInGroup": "未找到匹配的对话",
     "noHistoryConversations": "暂无历史对话",
@@ -1107,6 +1110,7 @@
     "folderPathCopied": "目录路径已复制，可粘贴到对话中",
     "folderEmpty": "此文件夹为空",
     "confirmDeleteFolder": "确定删除该文件夹及其中的全部文件？此操作不可恢复。",
+    "folderRemovedStale": "服务器上已无该目录，列表已刷新。",
     "deleteFolderTitle": "删除文件夹",
     "uploadToFolderTitle": "上传文件到此文件夹",
     "newFolderButton": "新建文件夹",

web/static/js/chat-files.js

@@ -1,6 +1,8 @@
 // 对话附件（chat_uploads）文件管理
 
 let chatFilesCache = [];
+/** 后端 GET /api/chat-uploads 返回的目录相对路径（含空文件夹），与 files 合并成树 */
+let chatFilesFoldersCache = [];
 let chatFilesDisplayed = [];
 let chatFilesEditRelativePath = '';
 let chatFilesRenameRelativePath = '';
@@ -15,98 +17,6 @@ let chatFilesPendingUploadDir = '';
 /** 文件管理页面向服务器上传进行中，避免重复选择并禁用顶栏按钮 */
 let chatFilesXHRUploadBusy = false;
 
-/** 仅前端记录的「空目录」键 parentPath（'' 表示 chat_uploads 根）-> 子目录名列表，与树合并以便 mkdir 后可见 */
-const CHAT_FILES_SYNTHETIC_DIRS_KEY = 'csai_chat_files_synthetic_dirs';
-let chatFilesSyntheticEmptyDirs = {};
-
-function chatFilesLoadSyntheticDirsFromStorage() {
-    try {
-        const raw = localStorage.getItem(CHAT_FILES_SYNTHETIC_DIRS_KEY);
-        if (!raw) return;
-        const o = JSON.parse(raw);
-        if (o && typeof o === 'object') {
-            chatFilesSyntheticEmptyDirs = o;
-        }
-    } catch (e) {
-        chatFilesSyntheticEmptyDirs = {};
-    }
-}
-
-function chatFilesRegisterSyntheticEmptyDir(parentSegments, name) {
-    const p = parentSegments.join('/');
-    if (!chatFilesSyntheticEmptyDirs[p]) {
-        chatFilesSyntheticEmptyDirs[p] = [];
-    }
-    const arr = chatFilesSyntheticEmptyDirs[p];
-    if (arr.indexOf(name) === -1) {
-        arr.push(name);
-    }
-    try {
-        localStorage.setItem(CHAT_FILES_SYNTHETIC_DIRS_KEY, JSON.stringify(chatFilesSyntheticEmptyDirs));
-    } catch (e) {
-        /* ignore */
-    }
-}
-
-function chatFilesRemoveSyntheticDirSubtree(relPathUnderRoot) {
-    const rel = String(relPathUnderRoot || '').replace(/\\/g, '/').replace(/^\/+/, '').replace(/\/+$/, '');
-    if (!rel) return;
-    const parts = rel.split('/').filter(function (x) {
-        return x.length > 0;
-    });
-    if (parts.length === 0) return;
-    const leaf = parts[parts.length - 1];
-    const parentKey = parts.slice(0, -1).join('/');
-    const arr = chatFilesSyntheticEmptyDirs[parentKey];
-    if (arr) {
-        const ix = arr.indexOf(leaf);
-        if (ix >= 0) arr.splice(ix, 1);
-        if (arr.length === 0) delete chatFilesSyntheticEmptyDirs[parentKey];
-    }
-    const prefix = rel + '/';
-    let k;
-    for (k in chatFilesSyntheticEmptyDirs) {
-        if (!Object.prototype.hasOwnProperty.call(chatFilesSyntheticEmptyDirs, k)) continue;
-        if (k === rel || k.indexOf(prefix) === 0) {
-            delete chatFilesSyntheticEmptyDirs[k];
-        }
-    }
-    try {
-        localStorage.setItem(CHAT_FILES_SYNTHETIC_DIRS_KEY, JSON.stringify(chatFilesSyntheticEmptyDirs));
-    } catch (e) {
-        /* ignore */
-    }
-}
-
-function chatFilesMergeSyntheticDirsIntoTree(root) {
-    function ensurePath(node, segments) {
-        let n = node;
-        let i;
-        for (i = 0; i < segments.length; i++) {
-            const s = segments[i];
-            if (!n.dirs[s]) n.dirs[s] = chatFilesTreeMakeNode();
-            n = n.dirs[s];
-        }
-        return n;
-    }
-    let k;
-    for (k in chatFilesSyntheticEmptyDirs) {
-        if (!Object.prototype.hasOwnProperty.call(chatFilesSyntheticEmptyDirs, k)) continue;
-        const names = chatFilesSyntheticEmptyDirs[k];
-        if (!Array.isArray(names)) continue;
-        const segs = k ? k.split('/').filter(function (x) {
-            return x.length > 0;
-        }) : [];
-        const node = ensurePath(root, segs);
-        let ni;
-        for (ni = 0; ni < names.length; ni++) {
-            const nm = names[ni];
-            if (!nm || typeof nm !== 'string') continue;
-            if (!node.dirs[nm]) node.dirs[nm] = chatFilesTreeMakeNode();
-        }
-    }
-}
-
 function chatFilesLoadBrowsePathFromStorage() {
     try {
         const raw = localStorage.getItem(CHAT_FILES_BROWSE_PATH_KEY);
@@ -157,7 +67,11 @@ function chatFilesNormalizeBrowsePathForTree(root) {
 
 function initChatFilesPage() {
     chatFilesLoadBrowsePathFromStorage();
-    chatFilesLoadSyntheticDirsFromStorage();
+    try {
+        localStorage.removeItem('csai_chat_files_synthetic_dirs');
+    } catch (e) {
+        /* ignore */
+    }
     ensureChatFilesDocClickClose();
     const sel = document.getElementById('chat-files-group-by');
     if (sel) {
@@ -280,6 +194,7 @@ async function loadChatFilesPage() {
         }
         const data = await res.json();
         chatFilesCache = Array.isArray(data.files) ? data.files : [];
+        chatFilesFoldersCache = Array.isArray(data.folders) ? data.folders : [];
         renderChatFilesTable();
     } catch (e) {
         console.error(e);
@@ -303,7 +218,7 @@ function chatFilesNameFilter(files) {
 
 /** 仅前端按文件名筛选，不重新请求 */
 function chatFilesFilterNameOnInput() {
-    if (!chatFilesCache.length && chatFilesGetGroupByMode() !== 'folder') return;
+    if (!chatFilesCache.length && !chatFilesFoldersCache.length && chatFilesGetGroupByMode() !== 'folder') return;
     renderChatFilesTable();
 }
 
@@ -463,9 +378,34 @@ function chatFilesBuildTree(files) {
     return root;
 }
 
+/** 将后端返回的目录相对路径（如 a/b/c）并入树，便于展示空文件夹 */
+function chatFilesTreeInsertFolderPath(root, relSlash) {
+    const rp = String(relSlash || '').replace(/\\/g, '/').replace(/^\/+/, '');
+    if (!rp) return;
+    const parts = rp.split('/').filter(function (p) {
+        return p.length > 0;
+    });
+    if (!parts.length) return;
+    let node = root;
+    let i;
+    for (i = 0; i < parts.length; i++) {
+        const seg = parts[i];
+        if (!node.dirs[seg]) node.dirs[seg] = chatFilesTreeMakeNode();
+        node = node.dirs[seg];
+    }
+}
+
+function chatFilesMergeFoldersIntoTree(root, folderPaths) {
+    if (!Array.isArray(folderPaths)) return;
+    let i;
+    for (i = 0; i < folderPaths.length; i++) {
+        chatFilesTreeInsertFolderPath(root, folderPaths[i]);
+    }
+}
+
 function chatFilesTreeRootMerged() {
     const root = chatFilesBuildTree(chatFilesDisplayed);
-    chatFilesMergeSyntheticDirsIntoTree(root);
+    chatFilesMergeFoldersIntoTree(root, chatFilesFoldersCache);
     return root;
 }
 
@@ -907,9 +847,30 @@ async function deleteChatFolderFromBrowse(folderName) {
             body: JSON.stringify({ path: rel })
         });
         if (!res.ok) {
-            throw new Error(await res.text());
+            const raw = await res.text();
+            if (res.status === 404) {
+                let errMsg = raw;
+                try {
+                    const j = JSON.parse(raw);
+                    if (j && j.error) errMsg = j.error;
+                } catch (eParse) {
+                    /* keep raw */
+                }
+                if (/not\s*found/i.test(String(errMsg))) {
+                    loadChatFilesPage();
+                    const cleared = (typeof window.t === 'function')
+                        ? window.t('chatFilesPage.folderRemovedStale')
+                        : '服务器上不存在该目录，列表已刷新。';
+                    if (typeof chatFilesShowToast === 'function') {
+                        chatFilesShowToast(cleared);
+                    } else {
+                        alert(cleared);
+                    }
+                    return;
+                }
+            }
+            throw new Error(raw || String(res.status));
         }
-        chatFilesRemoveSyntheticDirSubtree(rel);
         loadChatFilesPage();
     } catch (e) {
         alert((e && e.message) ? e.message : String(e));
@@ -1188,7 +1149,6 @@ async function submitChatFilesMkdir() {
             }
             throw new Error(errText || String(res.status));
         }
-        chatFilesRegisterSyntheticEmptyDir(chatFilesBrowsePath.slice(), name);
         closeChatFilesMkdirModal();
         loadChatFilesPage();
         const okMsg = (typeof window.t === 'function')

web/static/js/chat.js

@@ -2452,6 +2452,7 @@ async function loadConversation(conversationId) {
                 const messageEl = document.getElementById(messageId);
                 if (messageEl && msg && msg.id) {
                     messageEl.dataset.backendMessageId = String(msg.id);
+                    attachDeleteTurnButton(messageEl);
                 }
                 // 对于助手消息，总是渲染过程详情（即使没有processDetails也要显示展开详情按钮）
                 if (msg.role === 'assistant') {
@@ -2491,6 +2492,67 @@ async function loadConversation(conversationId) {
     }
 }
 
+/** 「删除本轮」：与时间戳同一行（message-meta-footer），风格与复制按钮区区分 */
+function attachDeleteTurnButton(messageEl) {
+    if (!messageEl || !messageEl.dataset.backendMessageId) return;
+    if (messageEl.querySelector('.message-delete-turn-btn')) return;
+    const content = messageEl.querySelector('.message-content');
+    if (!content) return;
+    const btn = document.createElement('button');
+    btn.type = 'button';
+    btn.className = 'message-delete-turn-btn';
+    const title = typeof window.t === 'function' ? window.t('chat.deleteTurnTitle') : '删除本轮对话';
+    btn.title = title;
+    btn.setAttribute('aria-label', title);
+    btn.innerHTML = '<svg width="14" height="14" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><path d="M3 6h18M8 6V4a2 2 0 012-2h4a2 2 0 012 2v2m3 0v14a2 2 0 01-2 2H7a2 2 0 01-2-2V6h14zM10 11v6M14 11v6" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/></svg>';
+    btn.onclick = function (e) {
+        e.stopPropagation();
+        e.preventDefault();
+        deleteConversationTurnFromUI(messageEl.dataset.backendMessageId);
+    };
+    const timeDiv = content.querySelector('.message-time');
+    let footer = content.querySelector('.message-meta-footer');
+    if (!footer && timeDiv && timeDiv.parentNode === content) {
+        footer = document.createElement('div');
+        footer.className = 'message-meta-footer';
+        timeDiv.parentNode.insertBefore(footer, timeDiv);
+        footer.appendChild(timeDiv);
+    }
+    if (footer) {
+        footer.appendChild(btn);
+    } else {
+        content.appendChild(btn);
+    }
+}
+
+/** 删除锚点所在整轮（后端：该轮 user 至下一轮 user 之前），并清空 ReAct 快照 */
+async function deleteConversationTurnFromUI(anchorBackendMessageId) {
+    if (!currentConversationId || !anchorBackendMessageId) return;
+    const confirmMsg = typeof window.t === 'function' ? window.t('chat.deleteTurnConfirm') : '确定删除本轮对话？';
+    if (!confirm(confirmMsg)) return;
+    try {
+        const response = await apiFetch(`/api/conversations/${currentConversationId}/delete-turn`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ messageId: anchorBackendMessageId })
+        });
+        let data = {};
+        try {
+            data = await response.json();
+        } catch (e) { /* ignore */ }
+        if (!response.ok) {
+            throw new Error(data.error || data.message || 'delete failed');
+        }
+        await loadConversation(currentConversationId);
+        if (typeof loadConversations === 'function') loadConversations();
+        if (typeof loadConversationsWithGroups === 'function') loadConversationsWithGroups();
+    } catch (error) {
+        console.error('delete turn failed:', error);
+        const failed = typeof window.t === 'function' ? window.t('chat.deleteTurnFailed') : '删除本轮失败';
+        alert(failed + ': ' + (error && error.message ? error.message : error));
+    }
+}
+
 // 删除对话
 async function deleteConversation(conversationId, skipConfirm = false) {
     // 确认删除（如果调用者没有跳过确认）

web/static/js/monitor.js

@@ -700,10 +700,45 @@ function convertProgressToDetails(progressId, assistantMessageId) {
     scrollChatMessagesToBottomIfPinned(insertWasPinned);
 }
 
+/** 将后端消息 UUID 绑定到助手气泡，供删除本轮 / 过程详情懒加载（domId 为前端 msg-*） */
+function applyBackendMessageIdToAssistantDom(domAssistantId, backendMessageId) {
+    if (!domAssistantId || !backendMessageId) return;
+    const el = document.getElementById(domAssistantId);
+    if (!el) return;
+    el.dataset.backendMessageId = String(backendMessageId);
+    if (typeof attachDeleteTurnButton === 'function') {
+        attachDeleteTurnButton(el);
+    }
+}
+
+/** 将后端用户消息 ID 绑定到最后一条尚未绑定 backendMessageId 的用户气泡 */
+function applyBackendMessageIdToLastUser(backendMessageId) {
+    if (!backendMessageId) return;
+    const users = document.querySelectorAll('#chat-messages .message.user');
+    if (!users.length) return;
+    const lastUser = users[users.length - 1];
+    if (lastUser.dataset.backendMessageId) return;
+    lastUser.dataset.backendMessageId = String(backendMessageId);
+    if (typeof attachDeleteTurnButton === 'function') {
+        attachDeleteTurnButton(lastUser);
+    }
+}
+
 // 处理流式事件
 function handleStreamEvent(event, progressElement, progressId, 
                           getAssistantId, setAssistantId, getMcpIds, setMcpIds) {
     const streamScrollWasPinned = isChatMessagesPinnedToBottom();
+
+    // 不依赖进度时间线；在首条 SSE 即可绑定用户消息 ID
+    if (event.type === 'message_saved') {
+        const d = event.data || {};
+        if (d.userMessageId) {
+            applyBackendMessageIdToLastUser(d.userMessageId);
+        }
+        scrollChatMessagesToBottomIfPinned(streamScrollWasPinned);
+        return;
+    }
+
     const timeline = document.getElementById(progressId + '-timeline');
     if (!timeline) return;
 
@@ -1173,6 +1208,9 @@ function handleStreamEvent(event, progressElement, progressId,
             {
                 const preferredMessageId = event.data && event.data.messageId ? event.data.messageId : null;
                 const { assistantId, assistantElement } = upsertTerminalAssistantMessage(event.message, preferredMessageId);
+                if (assistantId && preferredMessageId) {
+                    applyBackendMessageIdToAssistantDom(assistantId, preferredMessageId);
+                }
                 if (assistantElement) {
                     const detailsId = 'process-details-' + assistantId;
                     if (!document.getElementById(detailsId)) {
@@ -1306,6 +1344,11 @@ function handleStreamEvent(event, progressElement, progressId,
             integrateProgressToMCPSection(progressId, assistantIdFinal, mcpIds);
             responseStreamStateByProgressId.delete(progressId);
 
+            const respMid = responseData.messageId;
+            if (respMid) {
+                applyBackendMessageIdToAssistantDom(assistantIdFinal, respMid);
+            }
+
             setTimeout(() => {
                 collapseAllProgressDetails(assistantIdFinal, progressId);
             }, 3000);
@@ -1344,6 +1387,9 @@ function handleStreamEvent(event, progressElement, progressId,
             {
                 const preferredMessageId = event.data && event.data.messageId ? event.data.messageId : null;
                 const { assistantId, assistantElement } = upsertTerminalAssistantMessage(event.message, preferredMessageId);
+                if (assistantId && preferredMessageId) {
+                    applyBackendMessageIdToAssistantDom(assistantId, preferredMessageId);
+                }
                 if (assistantElement) {
                     const detailsId = 'process-details-' + assistantId;
                     if (!document.getElementById(detailsId)) {