1、将排序做到border-b transition-colors hover:bg-muted/50 has-aria-expanded:bg-muted/50 data-[state=selected]:bg-muted里，无需单独做个button 2、指定重命名使用ICO，无需使用菜单

db/conversation.go

@@ -209,6 +209,28 @@ func (d *DB) DeleteConversation(id int64) error {
 	return err
 }
 
+// DeleteConversations removes existing threads in one statement and returns the
+// ids that were actually present. Child activities and trigger runs cascade.
+func (d *DB) DeleteConversations(ids []int64) ([]int64, error) {
+	if len(ids) == 0 {
+		return []int64{}, nil
+	}
+	rows, err := d.Query(`DELETE FROM conversations WHERE id=ANY($1::bigint[]) RETURNING id`, ids)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	deleted := make([]int64, 0, len(ids))
+	for rows.Next() {
+		var id int64
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		deleted = append(deleted, id)
+	}
+	return deleted, rows.Err()
+}
+
 // AppendConvActivity records one step of a conversation (human message or an agent
 // execution step) and returns its id. Mirrors ExplorationStore.AppendActivity but
 // keyed by conversation_id. Reuses the Activity struct (NodeID is ignored here).

db/schema.sql

@@ -385,6 +385,7 @@ CREATE TABLE IF NOT EXISTS tasks (
     timeout_seconds INTEGER NOT NULL DEFAULT 0,
     plan_heartbeat_seconds INTEGER NOT NULL DEFAULT 300,
     coverage_enabled BOOLEAN NOT NULL DEFAULT true,
+    pinned_at      TIMESTAMPTZ,
     first_run_at   TIMESTAMPTZ,
     deadline_at    TIMESTAMPTZ,
     deleted_at     TIMESTAMPTZ,
@@ -413,10 +414,13 @@ ALTER TABLE tasks ADD COLUMN IF NOT EXISTS queue_mode TEXT NOT NULL DEFAULT '';
 -- 可选的任务名称;补旧库。空串=未命名,前端展示时回退到描述。
 ALTER TABLE tasks ADD COLUMN IF NOT EXISTS name TEXT NOT NULL DEFAULT '';
 ALTER TABLE tasks ADD COLUMN IF NOT EXISTS category_id BIGINT REFERENCES task_categories(id) ON DELETE SET NULL;
+ALTER TABLE tasks ADD COLUMN IF NOT EXISTS pinned_at TIMESTAMPTZ;
 ALTER TABLE tasks ADD COLUMN IF NOT EXISTS active_llm_profile_id BIGINT REFERENCES llm_profiles(id) ON DELETE SET NULL;
 ALTER TABLE tasks ADD COLUMN IF NOT EXISTS llm_chain_revision BIGINT NOT NULL DEFAULT 0;
 CREATE INDEX IF NOT EXISTS idx_tasks_category ON tasks(category_id, created_at DESC)
     WHERE deleted_at IS NULL AND category_id IS NOT NULL;
+CREATE INDEX IF NOT EXISTS idx_tasks_pinned ON tasks(pinned_at DESC)
+    WHERE deleted_at IS NULL AND pinned_at IS NOT NULL;
 
 -- Reusable task description/goal presets. nkey is the normalized, case-insensitive
 -- identity used to reject visually equivalent duplicate names.

db/task_metadata_test.go

@@ -0,0 +1,104 @@
+package db
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+func TestTaskPinOrderingAndRename(t *testing.T) {
+	d, err := Open(testDSN(t))
+	if err != nil {
+		t.Skipf("postgres unavailable (%v) — skipping", err)
+	}
+	defer d.Close()
+
+	suffix := time.Now().UnixNano()
+	first, err := d.CreateTask(fmt.Sprintf("task-pin-first-%d", suffix), "goal", nil, 0, 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+	second, err := d.CreateTask(fmt.Sprintf("task-pin-second-%d", suffix), "goal", nil, 0, 0)
+	if err != nil {
+		_ = d.DeleteTask(first.ID)
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = d.DeleteTask(first.ID)
+		_ = d.DeleteTask(second.ID)
+	}()
+
+	pinned := true
+	first, err = d.UpdateTask(first.ID, TaskPatch{Pinned: &pinned})
+	if err != nil || first == nil || !first.Pinned || first.PinnedAt == nil {
+		t.Fatalf("pin first = %+v, %v", first, err)
+	}
+	firstPinnedAt := *first.PinnedAt
+	time.Sleep(5 * time.Millisecond)
+	second, err = d.UpdateTask(second.ID, TaskPatch{Pinned: &pinned})
+	if err != nil || second == nil || !second.Pinned || second.PinnedAt == nil {
+		t.Fatalf("pin second = %+v, %v", second, err)
+	}
+
+	name := "renamed pinned task"
+	first, err = d.UpdateTask(first.ID, TaskPatch{Name: &name, Pinned: &pinned})
+	if err != nil || first == nil {
+		t.Fatal(err)
+	}
+	if first.Name != name || first.PinnedAt == nil || !first.PinnedAt.Equal(firstPinnedAt) {
+		t.Fatalf("repeat pin should preserve pin time: %+v (want %v)", first, firstPinnedAt)
+	}
+
+	tasks, err := d.ListTasks()
+	if err != nil {
+		t.Fatal(err)
+	}
+	positions := map[int64]int{}
+	for index, task := range tasks {
+		positions[task.ID] = index
+	}
+	if positions[second.ID] >= positions[first.ID] {
+		t.Fatalf("newer pin must sort first: second=%d first=%d", positions[second.ID], positions[first.ID])
+	}
+
+	pinned = false
+	first, err = d.UpdateTask(first.ID, TaskPatch{Pinned: &pinned})
+	if err != nil || first == nil || first.Pinned || first.PinnedAt != nil {
+		t.Fatalf("unpin first = %+v, %v", first, err)
+	}
+}
+
+func TestDeleteConversationsReturnsExistingIDs(t *testing.T) {
+	d, err := Open(testDSN(t))
+	if err != nil {
+		t.Skipf("postgres unavailable (%v) — skipping", err)
+	}
+	defer d.Close()
+
+	first, err := d.CreateConversation("mainagent", "batch-delete-first", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	second, err := d.CreateConversation("mainagent", "batch-delete-second", nil)
+	if err != nil {
+		_ = d.DeleteConversation(first.ID)
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = d.DeleteConversation(first.ID)
+		_ = d.DeleteConversation(second.ID)
+	}()
+
+	missing := int64(1<<62 - 1)
+	deleted, err := d.DeleteConversations([]int64{first.ID, missing, second.ID})
+	if err != nil {
+		t.Fatal(err)
+	}
+	seen := make(map[int64]bool, len(deleted))
+	for _, id := range deleted {
+		seen[id] = true
+	}
+	if !seen[first.ID] || !seen[second.ID] || seen[missing] || len(deleted) != 2 {
+		t.Fatalf("deleted=%v, want existing ids only", deleted)
+	}
+}

db/tasks.go

@@ -15,6 +15,8 @@ type Task struct {
 	Name          string     `json:"name"` // 可选任务名称;空=未命名
 	CategoryID    *int64     `json:"category_id,omitempty"`
 	CategoryName  string     `json:"category_name,omitempty"`
+	Pinned        bool       `json:"pinned"`
+	PinnedAt      *time.Time `json:"pinned_at,omitempty"`
 	Description   string     `json:"description"`
 	Goal          string     `json:"goal"`
 	ExplorationID int64      `json:"exploration_id"`
@@ -304,13 +306,14 @@ func insertTaskLLMProfiles(tx *sql.Tx, taskID int64, profileIDs []int64) error {
 
 const taskCols = `id, COALESCE(name,''), category_id,
 COALESCE((SELECT category.name FROM task_categories category WHERE category.id=tasks.category_id),''),
-description, goal, exploration_id, status, paused, queued, queued_at, COALESCE(queue_mode,''), llm_profile_id, active_llm_profile_id, COALESCE(parent_ref,''), created_at, completed_at, COALESCE(timeout_seconds,0), COALESCE(plan_heartbeat_seconds,300), COALESCE(coverage_enabled,true), first_run_at, deadline_at`
+description, goal, exploration_id, status, paused, queued, queued_at, COALESCE(queue_mode,''), llm_profile_id, active_llm_profile_id, COALESCE(parent_ref,''), pinned_at, created_at, completed_at, COALESCE(timeout_seconds,0), COALESCE(plan_heartbeat_seconds,300), COALESCE(coverage_enabled,true), first_run_at, deadline_at`
 
 func scanTask(sc interface{ Scan(...any) error }) (*Task, error) {
 	var t Task
-	if err := sc.Scan(&t.ID, &t.Name, &t.CategoryID, &t.CategoryName, &t.Description, &t.Goal, &t.ExplorationID, &t.Status, &t.Paused, &t.Queued, &t.QueuedAt, &t.QueueMode, &t.LLMProfileID, &t.ActiveLLMProfileID, &t.ParentRef, &t.CreatedAt, &t.CompletedAt, &t.TimeoutSeconds, &t.PlanHeartbeatSeconds, &t.CoverageEnabled, &t.FirstRunAt, &t.DeadlineAt); err != nil {
+	if err := sc.Scan(&t.ID, &t.Name, &t.CategoryID, &t.CategoryName, &t.Description, &t.Goal, &t.ExplorationID, &t.Status, &t.Paused, &t.Queued, &t.QueuedAt, &t.QueueMode, &t.LLMProfileID, &t.ActiveLLMProfileID, &t.ParentRef, &t.PinnedAt, &t.CreatedAt, &t.CompletedAt, &t.TimeoutSeconds, &t.PlanHeartbeatSeconds, &t.CoverageEnabled, &t.FirstRunAt, &t.DeadlineAt); err != nil {
 		return nil, err
 	}
+	t.Pinned = t.PinnedAt != nil
 	return &t, nil
 }
 
@@ -320,11 +323,11 @@ func (d *DB) SetParentRef(id int64, parentRef string) error {
 	return err
 }
 
-// ListTasks returns alive tasks, newest first.
+// ListTasks returns alive tasks with pinned tasks first, then newest ids.
 func (d *DB) ListTasks() ([]*Task, error) {
-	// 按 id 降序:id 是 BIGSERIAL,单调递增即插入顺序,最新的在最前。不用 created_at
-	// 是因为同一时刻创建的多个任务时间戳相同,排序不稳定,列表会频繁换位(见 List)。
-	rows, err := d.Query(`SELECT ` + taskCols + ` FROM tasks WHERE deleted_at IS NULL ORDER BY id DESC`)
+	// id 是 BIGSERIAL，同一时刻创建的任务也有稳定且唯一的顺序。
+	rows, err := d.Query(`SELECT ` + taskCols + ` FROM tasks WHERE deleted_at IS NULL
+ORDER BY (pinned_at IS NOT NULL) DESC, pinned_at DESC NULLS LAST, id DESC`)
 	if err != nil {
 		return nil, err
 	}
@@ -349,6 +352,33 @@ func (d *DB) ListTasks() ([]*Task, error) {
 	return out, nil
 }
 
+// TaskPatch updates task list metadata without changing execution state.
+type TaskPatch struct {
+	Name   *string
+	Pinned *bool
+}
+
+// UpdateTask applies a partial task name/pin mutation and returns the updated row.
+// Re-pinning an already pinned task preserves its original position.
+func (d *DB) UpdateTask(id int64, patch TaskPatch) (*Task, error) {
+	task, err := scanTask(d.QueryRow(`UPDATE tasks SET
+	name = CASE WHEN $2::boolean THEN $3 ELSE name END,
+	pinned_at = CASE
+		WHEN $4::boolean IS NULL THEN pinned_at
+		WHEN $4::boolean THEN COALESCE(pinned_at, now())
+		ELSE NULL
+	END
+WHERE id=$1 AND deleted_at IS NULL
+RETURNING `+taskCols, id, patch.Name != nil, patch.Name, patch.Pinned))
+	if err == sql.ErrNoRows {
+		return nil, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	return task, nil
+}
+
 // GetTask returns one alive task (nil if not found/deleted).
 func (d *DB) GetTask(id int64) (*Task, error) {
 	t, err := scanTask(d.QueryRow(`SELECT `+taskCols+` FROM tasks WHERE id=$1 AND deleted_at IS NULL`, id))

server/conversations.go

@@ -203,6 +203,7 @@ func (s *Server) pgDeleteConversation(w http.ResponseWriter, r *http.Request) {
 	if !ok {
 		return
 	}
+	s.cancelConversation(c.ID)
 	if err := pg.DeleteConversation(c.ID); err != nil {
 		writeErr(w, 500, err.Error())
 		return
@@ -210,6 +211,79 @@ func (s *Server) pgDeleteConversation(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, 200, map[string]any{"deleted": c.ID})
 }
 
+const maxConversationDeleteBatch = 100
+
+type conversationDeleteItem struct {
+	ID    int64  `json:"id"`
+	OK    bool   `json:"ok"`
+	Error string `json:"error,omitempty"`
+}
+
+func (s *Server) cancelConversation(id int64) {
+	busyKey := s.convBusyKey(id)
+	s.chatMu.Lock()
+	cancel := s.chatCancel[busyKey]
+	s.chatMu.Unlock()
+	if cancel != nil {
+		cancel(agent.AbortChatStoppedByUser)
+	}
+}
+
+// pgDeleteConversationsBatch deletes up to 100 selected conversations in one
+// database statement. Missing ids are reported per item so a stale list does not
+// hide what was actually removed.
+func (s *Server) pgDeleteConversationsBatch(w http.ResponseWriter, r *http.Request) {
+	pg := s.pg(w)
+	if pg == nil {
+		return
+	}
+	var request struct {
+		IDs []int64 `json:"ids"`
+	}
+	if !decodeConversationRequest(w, r, &request) {
+		return
+	}
+	ids := make([]int64, 0, len(request.IDs))
+	seen := make(map[int64]struct{}, len(request.IDs))
+	for _, id := range request.IDs {
+		if id <= 0 {
+			writeErr(w, http.StatusBadRequest, "对话 id 无效")
+			return
+		}
+		if _, exists := seen[id]; exists {
+			continue
+		}
+		seen[id] = struct{}{}
+		ids = append(ids, id)
+	}
+	if len(ids) == 0 || len(ids) > maxConversationDeleteBatch {
+		writeErr(w, http.StatusBadRequest, fmt.Sprintf("ids 数量必须为 1-%d", maxConversationDeleteBatch))
+		return
+	}
+	for _, id := range ids {
+		s.cancelConversation(id)
+	}
+	deleted, err := pg.DeleteConversations(ids)
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	deletedSet := make(map[int64]struct{}, len(deleted))
+	for _, id := range deleted {
+		deletedSet[id] = struct{}{}
+	}
+	items := make([]conversationDeleteItem, 0, len(ids))
+	for _, id := range ids {
+		_, ok := deletedSet[id]
+		item := conversationDeleteItem{ID: id, OK: ok}
+		if !ok {
+			item.Error = "conversation not found"
+		}
+		items = append(items, item)
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"items": items})
+}
+
 func (s *Server) convBusyKey(id int64) string { return "conv-" + strconv.FormatInt(id, 10) }
 
 // pgConversationMessages returns steps after ?since=cursor plus whether a turn is

server/dto.go

@@ -35,6 +35,8 @@ type TaskDTO struct {
 	Name               string        `json:"name"` // 可选任务名称;空=未命名
 	CategoryID         *int64        `json:"category_id,omitempty"`
 	CategoryName       string        `json:"category_name,omitempty"`
+	Pinned             bool          `json:"pinned"`
+	PinnedAt           string        `json:"pinned_at,omitempty"`
 	Description        string        `json:"description"`
 	Goal               string        `json:"goal"`
 	Status             string        `json:"status"` // created | running | paused | done | failed
@@ -86,9 +88,11 @@ func taskDTO(t *Task, status string) TaskDTO {
 	return TaskDTO{
 		ID:                 t.ID,
 		ExplorationID:      t.ExpID,
-		Name:               t.Name,
+		Name:               lifecycle.Name,
 		CategoryID:         lifecycle.CategoryID,
 		CategoryName:       lifecycle.CategoryName,
+		Pinned:             lifecycle.PinnedAt > 0,
+		PinnedAt:           completedRFC(lifecycle.PinnedAt),
 		Description:        t.Description,
 		Goal:               t.Goal,
 		Status:             status,

server/manager.go

@@ -32,6 +32,7 @@ type Task struct {
 	Name         string `json:"name"` // 可选任务名称;空=未命名
 	CategoryID   *int64 `json:"category_id,omitempty"`
 	CategoryName string `json:"category_name,omitempty"`
+	PinnedAt     int64  `json:"pinned_at,omitempty"`
 	Description  string `json:"description"`
 	Goal         string `json:"goal"`
 	CreatedAt    int64  `json:"created_at"`
@@ -77,6 +78,8 @@ type Task struct {
 // updateLifecycle instead of reading or writing the corresponding Task fields
 // directly after the task has been published by Manager.
 type taskLifecycleState struct {
+	Name          string
+	PinnedAt      int64
 	Status        string
 	Paused        bool
 	Queued        bool
@@ -102,6 +105,8 @@ func (t *Task) lifecycleSnapshot() taskLifecycleState {
 
 func (t *Task) lifecycleSnapshotLocked() taskLifecycleState {
 	return taskLifecycleState{
+		Name:          t.Name,
+		PinnedAt:      t.PinnedAt,
 		Status:        t.Status,
 		Paused:        t.Paused,
 		Queued:        t.Queued,
@@ -124,6 +129,8 @@ func (t *Task) updateLifecycle(update func(*taskLifecycleState)) {
 	t.lifecycleMu.Lock()
 	state := t.lifecycleSnapshotLocked()
 	update(&state)
+	t.Name = state.Name
+	t.PinnedAt = state.PinnedAt
 	t.Status = state.Status
 	t.Paused = state.Paused
 	t.Queued = state.Queued
@@ -698,6 +705,7 @@ func taskFromPG(pt *pgdb.Task, store *pgdb.ExplorationStore, ic *intercept.Inter
 		ID: strconv.FormatInt(pt.ID, 10), ExpID: pt.ExplorationID,
 		Name:       pt.Name,
 		CategoryID: cloneInt64Ptr(pt.CategoryID), CategoryName: pt.CategoryName,
+		PinnedAt:    unixOrZero(pt.PinnedAt),
 		Description: pt.Description, Goal: pt.Goal, CreatedAt: pt.CreatedAt.Unix(), Paused: pt.Paused, Queued: pt.Queued,
 		QueuedAt: unixNanoOrZero(pt.QueuedAt), QueueMode: pt.QueueMode,
 		CompletedAt: unixOrZero(pt.CompletedAt), Status: pt.Status, ParentRef: pt.ParentRef,
@@ -714,6 +722,32 @@ func taskFromPG(pt *pgdb.Task, store *pgdb.ExplorationStore, ic *intercept.Inter
 	}
 }
 
+// UpdateTaskMetadata changes list-only task metadata without interrupting any
+// planner, main-agent, or worker call.
+func (m *Manager) UpdateTaskMetadata(taskID string, patch pgdb.TaskPatch) (*Task, error) {
+	m.taskStateMu.Lock()
+	defer m.taskStateMu.Unlock()
+	id, err := strconv.ParseInt(taskID, 10, 64)
+	if err != nil || id <= 0 {
+		return nil, nil
+	}
+	updated, err := m.pg.UpdateTask(id, patch)
+	if err != nil || updated == nil {
+		return nil, err
+	}
+	m.mu.RLock()
+	task := m.tasks[taskID]
+	m.mu.RUnlock()
+	if task == nil {
+		return nil, nil
+	}
+	task.updateLifecycle(func(state *taskLifecycleState) {
+		state.Name = updated.Name
+		state.PinnedAt = unixOrZero(updated.PinnedAt)
+	})
+	return task, nil
+}
+
 // CreateTask creates a task + its exploration and makes it active.
 // timeoutSeconds is the task-level wall-clock budget (0 = 不限时).
 func (m *Manager) CreateTask(description, goal string, llmProfileID *int64, timeoutSeconds, planHeartbeatSeconds int) (*Task, error) {
@@ -1558,10 +1592,17 @@ func (m *Manager) List() []*Task {
 	for _, t := range m.tasks {
 		out = append(out, t)
 	}
-	// 按 id 降序(最新插入在最前)。m.tasks 是 map,遍历顺序随机,每次轮询都要重排;
-	// 若按 CreatedAt 排,同一秒创建的任务时间戳相同,排序不稳定,会在列表里频繁换
-	// 位置。id 由 BIGSERIAL 单调递增分配,唯一且稳定,顺序恒定。
+	// 置顶任务优先，组内按置顶时间倒序；普通任务按 id 倒序。m.tasks 是 map，
+	// 每次轮询都必须重排，id 则为同刻创建任务提供稳定且唯一的兜底顺序。
 	sort.Slice(out, func(i, j int) bool {
+		iState := out[i].lifecycleSnapshot()
+		jState := out[j].lifecycleSnapshot()
+		if (iState.PinnedAt > 0) != (jState.PinnedAt > 0) {
+			return iState.PinnedAt > 0
+		}
+		if iState.PinnedAt != jState.PinnedAt {
+			return iState.PinnedAt > jState.PinnedAt
+		}
 		ai, _ := strconv.ParseInt(out[i].ID, 10, 64)
 		aj, _ := strconv.ParseInt(out[j].ID, 10, 64)
 		return ai > aj

server/server.go

@@ -687,6 +687,7 @@ func (s *Server) Handler() http.Handler {
 	mux.HandleFunc("PATCH /api/task-templates/{id}", s.pgUpdateTaskTemplate)
 	mux.HandleFunc("DELETE /api/task-templates/{id}", s.pgDeleteTaskTemplate)
 	mux.HandleFunc("GET /api/tasks/{id}", s.getTask)
+	mux.HandleFunc("PATCH /api/tasks/{id}", s.updateTaskMetadata)
 	mux.HandleFunc("PATCH /api/tasks/{id}/category", s.updateTaskCategory)
 	mux.HandleFunc("POST /api/tasks/control/batch", s.controlTasksBatch)
 	mux.HandleFunc("GET /api/tasks/{id}/coverage", s.taskCoverage)
@@ -791,6 +792,7 @@ func (s *Server) Handler() http.Handler {
 	// conversations (chat page)
 	mux.HandleFunc("GET /api/conversations", s.pgListConversations)
 	mux.HandleFunc("POST /api/conversations", s.pgCreateConversation)
+	mux.HandleFunc("POST /api/conversations/delete/batch", s.pgDeleteConversationsBatch)
 	mux.HandleFunc("PATCH /api/conversations/{id}", s.pgRenameConversation)
 	mux.HandleFunc("PATCH /api/conversations/{id}/profile", s.pgUpdateConversation)
 	mux.HandleFunc("DELETE /api/conversations/{id}", s.pgDeleteConversation)

server/task_metadata.go

@@ -0,0 +1,66 @@
+package server
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+	"unicode/utf8"
+
+	"github.com/Autumn-27/artex/db"
+)
+
+const (
+	maxTaskNameRunes           = 200
+	maxTaskMetadataRequestSize = 16 << 10
+)
+
+// updateTaskMetadata changes list-only task metadata. It intentionally does not
+// touch lifecycle state, scheduling, or the task's immutable description/goal.
+func (s *Server) updateTaskMetadata(w http.ResponseWriter, r *http.Request) {
+	taskID := r.PathValue("id")
+	if _, ok := s.m.Task(taskID); !ok {
+		writeErr(w, http.StatusNotFound, "task not found")
+		return
+	}
+	r.Body = http.MaxBytesReader(w, r.Body, maxTaskMetadataRequestSize)
+	var request struct {
+		Name   *string `json:"name"`
+		Pinned *bool   `json:"pinned"`
+	}
+	if err := decode(r, &request); err != nil {
+		var tooLarge *http.MaxBytesError
+		if errors.As(err, &tooLarge) {
+			writeErr(w, http.StatusRequestEntityTooLarge, "请求正文过大")
+		} else {
+			writeErr(w, http.StatusBadRequest, err.Error())
+		}
+		return
+	}
+	if request.Name == nil && request.Pinned == nil {
+		writeErr(w, http.StatusBadRequest, "至少需要提供 name 或 pinned")
+		return
+	}
+	if request.Name != nil {
+		name := strings.TrimSpace(*request.Name)
+		if name == "" {
+			writeErr(w, http.StatusBadRequest, "任务名称不能为空")
+			return
+		}
+		if utf8.RuneCountInString(name) > maxTaskNameRunes {
+			writeErr(w, http.StatusBadRequest, fmt.Sprintf("任务名称最多 %d 个字符", maxTaskNameRunes))
+			return
+		}
+		request.Name = &name
+	}
+	task, err := s.m.UpdateTaskMetadata(taskID, db.TaskPatch{Name: request.Name, Pinned: request.Pinned})
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	if task == nil {
+		writeErr(w, http.StatusNotFound, "task not found")
+		return
+	}
+	writeJSON(w, http.StatusOK, taskDTO(task, s.resolvedTaskStatus(task)))
+}

server/task_metadata_test.go

@@ -0,0 +1,113 @@
+package server
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestTaskMetadataPatchReturnsRenameAndPin(t *testing.T) {
+	m, err := NewManager(t.TempDir(), "")
+	if err != nil {
+		t.Skipf("postgres unavailable (%v) — skipping", err)
+	}
+	defer m.Close()
+	task, err := m.CreateTask("metadata patch", "goal", nil, 0, 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+	taskID, _ := strconv.ParseInt(task.ID, 10, 64)
+	defer func() { _ = m.pg.DeleteTask(taskID) }()
+	s := New(context.Background(), m, t.TempDir(), t.TempDir(), t.TempDir())
+	token, err := signJWT(s.jwtKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	body, _ := json.Marshal(map[string]any{"name": "  renamed task  ", "pinned": true})
+	req := httptest.NewRequest(http.MethodPatch, "/api/tasks/"+task.ID, bytes.NewReader(body))
+	req.Header.Set("Authorization", "Bearer "+token)
+	rec := httptest.NewRecorder()
+	s.Handler().ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("patch status=%d body=%s", rec.Code, rec.Body.String())
+	}
+	var updated struct {
+		Name     string `json:"name"`
+		Pinned   bool   `json:"pinned"`
+		PinnedAt string `json:"pinned_at"`
+	}
+	if err := json.Unmarshal(rec.Body.Bytes(), &updated); err != nil {
+		t.Fatal(err)
+	}
+	if updated.Name != "renamed task" || !updated.Pinned || updated.PinnedAt == "" {
+		t.Fatalf("unexpected task patch response: %+v", updated)
+	}
+
+	body, _ = json.Marshal(map[string]any{"name": strings.Repeat("任", maxTaskNameRunes+1)})
+	req = httptest.NewRequest(http.MethodPatch, "/api/tasks/"+task.ID, bytes.NewReader(body))
+	req.Header.Set("Authorization", "Bearer "+token)
+	rec = httptest.NewRecorder()
+	s.Handler().ServeHTTP(rec, req)
+	if rec.Code != http.StatusBadRequest {
+		t.Fatalf("overlong task name status=%d body=%s", rec.Code, rec.Body.String())
+	}
+}
+
+func TestConversationBatchDeleteReportsMissing(t *testing.T) {
+	m, err := NewManager(t.TempDir(), "")
+	if err != nil {
+		t.Skipf("postgres unavailable (%v) — skipping", err)
+	}
+	defer m.Close()
+	s := New(context.Background(), m, t.TempDir(), t.TempDir(), t.TempDir())
+	first, err := m.pg.CreateConversation("mainagent", "batch-http-first", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	second, err := m.pg.CreateConversation("mainagent", "batch-http-second", nil)
+	if err != nil {
+		_ = m.pg.DeleteConversation(first.ID)
+		t.Fatal(err)
+	}
+	defer func() {
+		_ = m.pg.DeleteConversation(first.ID)
+		_ = m.pg.DeleteConversation(second.ID)
+	}()
+	token, err := signJWT(s.jwtKey)
+	if err != nil {
+		t.Fatal(err)
+	}
+	missing := int64(1<<62 - 1)
+	body, _ := json.Marshal(map[string]any{"ids": []int64{first.ID, missing, second.ID}})
+	req := httptest.NewRequest(http.MethodPost, "/api/conversations/delete/batch", bytes.NewReader(body))
+	req.Header.Set("Authorization", "Bearer "+token)
+	rec := httptest.NewRecorder()
+	s.Handler().ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("batch delete status=%d body=%s", rec.Code, rec.Body.String())
+	}
+	var response struct {
+		Items []conversationDeleteItem `json:"items"`
+	}
+	if err := json.Unmarshal(rec.Body.Bytes(), &response); err != nil {
+		t.Fatal(err)
+	}
+	if len(response.Items) != 3 || !response.Items[0].OK || response.Items[1].OK || !response.Items[2].OK {
+		t.Fatalf("batch delete response=%+v", response.Items)
+	}
+	for _, id := range []int64{first.ID, second.ID} {
+		if conversation, err := m.pg.GetConversation(id); err != nil || conversation != nil {
+			t.Fatalf("conversation %d still exists: %+v err=%v", id, conversation, err)
+		}
+	}
+	if response.Items[1].Error == "" {
+		t.Fatalf("missing conversation %s must include an error", fmt.Sprint(missing))
+	}
+}

web/src/app/(main)/chat/page.tsx

@@ -34,6 +34,7 @@ import {
 } from "@/components/ui/alert-dialog";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
+import { Checkbox } from "@/components/ui/checkbox";
 import {
   DropdownMenu,
   DropdownMenuContent,
@@ -761,6 +762,8 @@ function ConversationItem({
   onCancelRename,
   onTogglePinned,
   onDelete,
+  selectedForDelete,
+  onSelectedForDeleteChange,
 }: {
   conv: Conversation;
   agent?: Agent;
@@ -774,6 +777,8 @@ function ConversationItem({
   onCancelRename: () => void;
   onTogglePinned: () => void;
   onDelete: () => void;
+  selectedForDelete: boolean;
+  onSelectedForDeleteChange: (checked: boolean) => void;
 }) {
   const [deleteOpen, setDeleteOpen] = React.useState(false);
   const renameInputRef = React.useRef<HTMLInputElement>(null);
@@ -794,6 +799,12 @@ function ConversationItem({
         active ? "bg-accent text-accent-foreground" : "hover:bg-accent/50",
       )}
     >
+      <Checkbox
+        checked={selectedForDelete}
+        onCheckedChange={(checked) => onSelectedForDeleteChange(checked === true)}
+        aria-label={`选择对话「${conv.title || "新对话"}」`}
+        className="ml-1 shrink-0"
+      />
       {renaming ? (
         <input
           ref={renameInputRef}
@@ -894,6 +905,9 @@ export default function ChatPage() {
   const [selectedId, setSelectedId] = React.useState<number | null>(null);
   const [renamingId, setRenamingId] = React.useState<number | null>(null);
   const [renameText, setRenameText] = React.useState("");
+  const [selectedConversationIds, setSelectedConversationIds] = React.useState<Set<number>>(() => new Set());
+  const [bulkDeleteOpen, setBulkDeleteOpen] = React.useState(false);
+  const [bulkDeleting, setBulkDeleting] = React.useState(false);
   // Pending text + uploaded attachments handed off from a draft that created a
   // conversation via the paperclip, keyed by the new conversation id (consumed once
   // by ChatView on mount; ids never repeat, so leftover entries are harmless).
@@ -923,6 +937,15 @@ export default function ChatPage() {
     reloadConvs();
   }, [reloadConvs]);
 
+  React.useEffect(() => {
+    setSelectedConversationIds((current) => {
+      if (current.size === 0) return current;
+      const live = new Set(convs.map((conversation) => conversation.id));
+      const next = new Set([...current].filter((id) => live.has(id)));
+      return next.size === current.size ? current : next;
+    });
+  }, [convs]);
+
   // Restore the open conversation from the URL (?c=<id>) on mount, so a refresh
   // returns to the same thread instead of the empty draft view. Runs after
   // hydration (not a lazy useState init) to avoid a server/client mismatch.
@@ -948,16 +971,80 @@ export default function ChatPage() {
   // are task-specific and stay hidden from the chat page.
   const chatAgents = agents.filter((a) => !a.builtin || a.role === "assistant");
 
+  const selectedConversationCount = selectedConversationIds.size;
+  const allConversationsSelected = convs.length > 0 && selectedConversationCount === convs.length;
+  const someConversationsSelected = selectedConversationCount > 0 && !allConversationsSelected;
+  let conversationHeaderChecked: boolean | "indeterminate" = false;
+  if (allConversationsSelected) conversationHeaderChecked = true;
+  else if (someConversationsSelected) conversationHeaderChecked = "indeterminate";
+
+  function toggleConversationSelected(id: number, checked: boolean) {
+    setSelectedConversationIds((current) => {
+      const next = new Set(current);
+      if (checked) next.add(id);
+      else next.delete(id);
+      return next;
+    });
+  }
+
+  function toggleAllConversations(checked: boolean) {
+    setSelectedConversationIds(checked ? new Set(convs.map((conversation) => conversation.id)) : new Set());
+  }
+
   async function del(id: number) {
     try {
       await api.deleteConversation(id);
       if (selectedId === id) setSelectedId(null);
+      setSelectedConversationIds((current) => {
+        if (!current.has(id)) return current;
+        const next = new Set(current);
+        next.delete(id);
+        return next;
+      });
       reloadConvs();
     } catch (e) {
       toast.error("删除失败：" + (e as Error).message);
     }
   }
 
+  async function deleteSelectedConversations() {
+    const ids = [...selectedConversationIds];
+    if (ids.length === 0 || bulkDeleting) return;
+    setBulkDeleting(true);
+    const deleted = new Set<number>();
+    const failed: { id: number; error: string }[] = [];
+    try {
+      for (let offset = 0; offset < ids.length; offset += 100) {
+        const result = await api.deleteConversations(ids.slice(offset, offset + 100));
+        for (const item of result.items) {
+          if (item.ok) deleted.add(item.id);
+          else failed.push({ id: item.id, error: item.error ?? "对话不存在" });
+        }
+      }
+      if (deleted.has(selectedId ?? -1)) setSelectedId(null);
+      setSelectedConversationIds((current) => {
+        const next = new Set(current);
+        for (const id of deleted) next.delete(id);
+        return next;
+      });
+      if (deleted.size > 0) toast.success(`已删除 ${deleted.size} 个对话`);
+      if (failed.length > 0) {
+        const details = failed
+          .slice(0, 3)
+          .map((item) => `#${item.id}（${item.error}）`)
+          .join("；");
+        toast.error(`${failed.length} 个对话删除失败：${details}${failed.length > 3 ? " 等" : ""}`);
+      }
+      setBulkDeleteOpen(false);
+      reloadConvs();
+    } catch (error) {
+      toast.error(`批量删除失败：${(error as Error).message}`);
+      reloadConvs();
+    } finally {
+      setBulkDeleting(false);
+    }
+  }
+
   async function togglePinned(conversation: Conversation) {
     const pinned = conversationIsPinned(conversation);
     try {
@@ -993,10 +1080,33 @@ export default function ChatPage() {
       <div className="grid min-h-0 min-w-0 flex-1 grid-cols-1 grid-rows-[minmax(10rem,15rem)_minmax(0,1fr)] gap-3 md:grid-cols-[18rem_minmax(0,1fr)] md:grid-rows-[minmax(0,1fr)] md:gap-4">
         {/* left: conversation list */}
         <div className="bg-card flex flex-col overflow-hidden rounded-lg border">
-          <div className="border-b p-2">
+          <div className="flex flex-col gap-2 border-b p-2">
             <Button size="sm" className="w-full" onClick={() => setSelectedId(null)}>
               <PlusIcon /> 新建对话
             </Button>
+            {convs.length > 0 && (
+              <div className="flex items-center gap-2 px-1">
+                <Checkbox
+                  checked={conversationHeaderChecked}
+                  onCheckedChange={(checked) => toggleAllConversations(checked === true)}
+                  aria-label="选择全部对话"
+                />
+                <span className="text-muted-foreground min-w-0 flex-1 text-xs tabular-nums">
+                  {selectedConversationCount > 0 ? `已选 ${selectedConversationCount} 个` : `共 ${convs.length} 个`}
+                </span>
+                {selectedConversationCount > 0 && (
+                  <Button
+                    size="sm"
+                    variant="destructive"
+                    disabled={bulkDeleting}
+                    onClick={() => setBulkDeleteOpen(true)}
+                  >
+                    <Trash2Icon data-icon="inline-start" />
+                    删除
+                  </Button>
+                )}
+              </div>
+            )}
           </div>
           <ScrollArea type="auto" className="min-h-0 min-w-0 flex-1 [&_[data-slot=scroll-area-viewport]>div]:block!">
             <div className="flex min-w-0 flex-col gap-0.5 p-2">
@@ -1016,6 +1126,8 @@ export default function ChatPage() {
                   onCancelRename={() => setRenamingId(null)}
                   onTogglePinned={() => void togglePinned(c)}
                   onDelete={() => del(c.id)}
+                  selectedForDelete={selectedConversationIds.has(c.id)}
+                  onSelectedForDeleteChange={(checked) => toggleConversationSelected(c.id, checked)}
                 />
               ))}
             </div>
@@ -1056,6 +1168,28 @@ export default function ChatPage() {
           )}
         </div>
       </div>
+      <AlertDialog open={bulkDeleteOpen} onOpenChange={setBulkDeleteOpen}>
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>删除选中的 {selectedConversationCount} 个对话？</AlertDialogTitle>
+            <AlertDialogDescription>对话消息和执行记录将一并删除，此操作不可撤销。</AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel disabled={bulkDeleting}>取消</AlertDialogCancel>
+            <AlertDialogAction
+              variant="destructive"
+              disabled={bulkDeleting || selectedConversationCount === 0}
+              onClick={(event) => {
+                event.preventDefault();
+                void deleteSelectedConversations();
+              }}
+            >
+              {bulkDeleting && <Loader2Icon data-icon="inline-start" className="animate-spin" />}
+              {bulkDeleting ? "删除中" : "确认删除"}
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
     </div>
   );
 }

web/src/app/(main)/function/tasks/page.tsx

@@ -17,6 +17,9 @@ import {
   useSensors,
 } from "@dnd-kit/core";
 import {
+  ArrowDownIcon,
+  ArrowUpDownIcon,
+  ArrowUpIcon,
   ChevronRightIcon,
   EyeIcon,
   FolderInputIcon,
@@ -24,6 +27,9 @@ import {
   Loader2Icon,
   PaperclipIcon,
   PauseIcon,
+  PencilIcon,
+  PinIcon,
+  PinOffIcon,
   PlayIcon,
   PlusIcon,
   SaveIcon,
@@ -235,12 +241,59 @@ function taskControlAction(status: TaskStatus): "pause" | "resume" | null {
   return null;
 }
 
+type TaskSortField = "id" | "created" | "duration" | "status";
+type SortDirection = "asc" | "desc";
+
+const TASK_STATUS_RANK = new Map(STATUS_OPTIONS.map((option, index) => [option.value, index]));
+
+function taskIsPinned(task: Task): boolean {
+  return task.pinned ?? Boolean(task.pinned_at);
+}
+
+function compareTaskIDs(left: string, right: string): number {
+  return left.localeCompare(right, undefined, { numeric: true, sensitivity: "base" });
+}
+
+function taskCreatedUnix(task: Task): number {
+  if (task.created_unix) return task.created_unix;
+  const parsed = Date.parse(task.created_at);
+  return Number.isNaN(parsed) ? 0 : Math.floor(parsed / 1000);
+}
+
+function compareTasks(left: Task, right: Task, field: TaskSortField, direction: SortDirection, nowSec: number): number {
+  const leftPinned = taskIsPinned(left);
+  const rightPinned = taskIsPinned(right);
+  if (leftPinned !== rightPinned) return leftPinned ? -1 : 1;
+  if (leftPinned && left.pinned_at !== right.pinned_at) {
+    return (right.pinned_at ?? "").localeCompare(left.pinned_at ?? "");
+  }
+
+  let compared = 0;
+  switch (field) {
+    case "created":
+      compared = taskCreatedUnix(left) - taskCreatedUnix(right);
+      break;
+    case "duration":
+      compared = taskDuration(left, nowSec) - taskDuration(right, nowSec);
+      break;
+    case "status":
+      compared = (TASK_STATUS_RANK.get(left.status) ?? 0) - (TASK_STATUS_RANK.get(right.status) ?? 0);
+      break;
+    default:
+      compared = compareTaskIDs(left.id, right.id);
+  }
+  if (compared !== 0) return direction === "asc" ? compared : -compared;
+  return -compareTaskIDs(left.id, right.id);
+}
+
 export default function TasksPage() {
   const [tasks, setTasks] = React.useState<Task[]>([]);
   const [categories, setCategories] = React.useState<TaskCategory[]>([]);
   const [query, setQuery] = React.useState("");
   const [statusFilter, setStatusFilter] = React.useState<TaskStatus | "all">("all");
   const [categoryFilter, setCategoryFilter] = React.useState("all");
+  const [sortField, setSortField] = React.useState<TaskSortField>("id");
+  const [sortDirection, setSortDirection] = React.useState<SortDirection>("desc");
   const [page, setPage] = React.useState(1);
   const [pageSize, setPageSize] = React.useState(20);
   const [nowSec, setNowSec] = React.useState(() => Math.floor(Date.now() / 1000));
@@ -269,15 +322,32 @@ export default function TasksPage() {
     });
   }, [tasks, query, statusFilter, categoryFilter]);
 
-  // reset to page 1 whenever filters change
+  const sortNowSec = sortField === "duration" ? nowSec : 0;
+  const ordered = React.useMemo(() => {
+    return [...filtered].sort((left, right) => compareTasks(left, right, sortField, sortDirection, sortNowSec));
+  }, [filtered, sortDirection, sortField, sortNowSec]);
+
+  const sortTasksBy = React.useCallback(
+    (field: TaskSortField) => {
+      if (sortField === field) {
+        setSortDirection((current) => (current === "asc" ? "desc" : "asc"));
+        return;
+      }
+      setSortField(field);
+      setSortDirection("desc");
+    },
+    [sortField],
+  );
+
+  // reset to page 1 whenever filters or ordering change
   // biome-ignore lint/correctness/useExhaustiveDependencies: both filters intentionally reset pagination.
   React.useEffect(() => {
     setPage(1);
-  }, [query, statusFilter, categoryFilter]);
+  }, [query, statusFilter, categoryFilter, sortField, sortDirection]);
 
   const paginated = React.useMemo(
-    () => filtered.slice((page - 1) * pageSize, page * pageSize),
-    [filtered, page, pageSize],
+    () => ordered.slice((page - 1) * pageSize, page * pageSize),
+    [ordered, page, pageSize],
   );
 
   // 多选删除:选择跨翻页/筛选保留,只在任务真的消失(被删或后端不再返回)时收敛。
@@ -439,6 +509,37 @@ export default function TasksPage() {
     [load],
   );
 
+  const renameTask = React.useCallback(
+    async (task: Task, name: string) => {
+      try {
+        await api.renameTask(task.id, name);
+        toast.success(`任务 #${task.id} 已重命名`);
+        lastRef.current = "";
+        load();
+      } catch (error) {
+        toast.error(`重命名失败：${(error as Error).message}`);
+        throw error;
+      }
+    },
+    [load],
+  );
+
+  const toggleTaskPinned = React.useCallback(
+    async (task: Task) => {
+      const pinned = taskIsPinned(task);
+      try {
+        await api.pinTask(task.id, !pinned);
+        toast.success(pinned ? `任务 #${task.id} 已取消置顶` : `任务 #${task.id} 已置顶`);
+        lastRef.current = "";
+        load();
+      } catch (error) {
+        toast.error(`${pinned ? "取消置顶" : "置顶"}失败：${(error as Error).message}`);
+        throw error;
+      }
+    },
+    [load],
+  );
+
   // deleteTasks 逐个删除所选任务:后端没有批量接口,且单次删除会连带清理资产/流量/文件,
   // 串行执行以免一次性打爆后端;成功的从选中集移除,失败的保留以便重试。
   const deleteTasks = React.useCallback(
@@ -717,14 +818,41 @@ export default function TasksPage() {
                     aria-label="选择本页全部任务"
                   />
                 </TableHead>
-                <TableHead className="font-mono">ID</TableHead>
+                <SortableTaskHead
+                  field="id"
+                  label="ID"
+                  activeField={sortField}
+                  direction={sortDirection}
+                  className="font-mono"
+                  onSort={sortTasksBy}
+                />
                 <TableHead>名称</TableHead>
                 <TableHead>描述</TableHead>
                 <TableHead>目标</TableHead>
-                <TableHead>状态</TableHead>
+                <SortableTaskHead
+                  field="status"
+                  label="状态"
+                  activeField={sortField}
+                  direction={sortDirection}
+                  onSort={sortTasksBy}
+                />
                 <TableHead className="text-center">目标进度</TableHead>
-                <TableHead className="text-right">创建时间</TableHead>
-                <TableHead className="text-right">运行时长</TableHead>
+                <SortableTaskHead
+                  field="created"
+                  label="创建时间"
+                  activeField={sortField}
+                  direction={sortDirection}
+                  align="right"
+                  onSort={sortTasksBy}
+                />
+                <SortableTaskHead
+                  field="duration"
+                  label="运行时长"
+                  activeField={sortField}
+                  direction={sortDirection}
+                  align="right"
+                  onSort={sortTasksBy}
+                />
                 <TableHead className="text-right">Token</TableHead>
                 <TableHead className="sticky right-0 z-10 bg-card text-right shadow-[-1px_0_0_0_hsl(var(--border))]">
                   操作
@@ -741,6 +869,8 @@ export default function TasksPage() {
                   nowSec={task.status === "running" ? nowSec : 0}
                   onDelete={deleteTask}
                   onControl={controlTask}
+                  onRename={renameTask}
+                  onTogglePinned={toggleTaskPinned}
                   selected={selectedIds.has(task.id)}
                   onSelectedChange={toggleSelected}
                 />
@@ -763,6 +893,56 @@ export default function TasksPage() {
   );
 }
 
+function taskSortIcon(active: boolean, direction: SortDirection) {
+  if (!active) {
+    return <ArrowUpDownIcon className="size-3.5 opacity-40 transition-opacity group-hover/sort:opacity-100" />;
+  }
+  if (direction === "asc") return <ArrowUpIcon className="size-3.5" />;
+  return <ArrowDownIcon className="size-3.5" />;
+}
+
+function SortableTaskHead({
+  field,
+  label,
+  activeField,
+  direction,
+  align = "left",
+  className,
+  onSort,
+}: {
+  field: TaskSortField;
+  label: string;
+  activeField: TaskSortField;
+  direction: SortDirection;
+  align?: "left" | "right";
+  className?: string;
+  onSort: (field: TaskSortField) => void;
+}) {
+  const active = activeField === field;
+  let ariaSort: React.AriaAttributes["aria-sort"] = "none";
+  if (active) ariaSort = direction === "asc" ? "ascending" : "descending";
+
+  let actionLabel = `按${label}倒序排序`;
+  if (active) actionLabel = `${label}当前${direction === "asc" ? "正序" : "倒序"}，点击切换排序方向`;
+
+  return (
+    <TableHead className={className} aria-sort={ariaSort}>
+      <button
+        type="button"
+        className={cn(
+          "group/sort inline-flex h-full w-full items-center gap-1 outline-none focus-visible:underline",
+          align === "right" && "justify-end",
+        )}
+        aria-label={actionLabel}
+        onClick={() => onSort(field)}
+      >
+        <span>{label}</span>
+        {taskSortIcon(active, direction)}
+      </button>
+    </TableHead>
+  );
+}
+
 function ConcurrencySettingsDialog() {
   const [open, setOpen] = React.useState(false);
   const [enabled, setEnabled] = React.useState(false);
@@ -858,6 +1038,8 @@ const TaskRow = React.memo(function TaskRow({
   nowSec,
   onDelete,
   onControl,
+  onRename,
+  onTogglePinned,
   selected,
   onSelectedChange,
 }: {
@@ -865,6 +1047,8 @@ const TaskRow = React.memo(function TaskRow({
   nowSec: number;
   onDelete: (id: string, options: DeleteTaskOptions) => Promise<void>;
   onControl: (id: string, action: "pause" | "resume") => Promise<void>;
+  onRename: (task: Task, name: string) => Promise<void>;
+  onTogglePinned: (task: Task) => Promise<void>;
   selected: boolean;
   onSelectedChange: (id: string, checked: boolean) => void;
 }) {
@@ -890,6 +1074,7 @@ const TaskRow = React.memo(function TaskRow({
             {task.name?.trim() ? task.name : <span className="text-muted-foreground">未命名</span>}
           </Link>
           {task.active && <StarIcon className="size-4 shrink-0 fill-amber-400 text-amber-400" />}
+          {taskIsPinned(task) && <PinIcon className="text-primary size-4 shrink-0" aria-label="已置顶" />}
         </div>
       </TableCell>
       <TableCell className="text-muted-foreground max-w-xs">
@@ -954,6 +1139,7 @@ const TaskRow = React.memo(function TaskRow({
             </Link>
           </Button>
           <TaskControlButton task={task} onControl={onControl} />
+          <TaskMetadataActions task={task} onRename={onRename} onTogglePinned={onTogglePinned} />
           <DeleteTaskDialog task={task} onDelete={onDelete} />
         </div>
       </TableCell>
@@ -961,6 +1147,120 @@ const TaskRow = React.memo(function TaskRow({
   );
 });
 
+function taskPinIcon(pinning: boolean, pinned: boolean) {
+  if (pinning) return <Spinner />;
+  if (pinned) return <PinOffIcon />;
+  return <PinIcon />;
+}
+
+function TaskMetadataActions({
+  task,
+  onRename,
+  onTogglePinned,
+}: {
+  task: Task;
+  onRename: (task: Task, name: string) => Promise<void>;
+  onTogglePinned: (task: Task) => Promise<void>;
+}) {
+  const [renameOpen, setRenameOpen] = React.useState(false);
+  const [name, setName] = React.useState(task.name ?? "");
+  const [saving, setSaving] = React.useState(false);
+  const [pinning, setPinning] = React.useState(false);
+  const pinned = taskIsPinned(task);
+
+  React.useEffect(() => {
+    if (renameOpen) setName(task.name ?? "");
+  }, [renameOpen, task.name]);
+
+  async function saveName() {
+    const next = name.trim();
+    if (!next) return;
+    if (next === task.name?.trim()) {
+      setRenameOpen(false);
+      return;
+    }
+    setSaving(true);
+    try {
+      await onRename(task, next);
+      setRenameOpen(false);
+    } catch {
+      // The parent already reports the API error; keep the dialog open for retry.
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  return (
+    <>
+      <Button
+        type="button"
+        variant="ghost"
+        size="icon"
+        aria-label={`重命名任务 #${task.id}`}
+        title="重命名"
+        onClick={() => setRenameOpen(true)}
+      >
+        <PencilIcon />
+      </Button>
+      <Button
+        type="button"
+        variant="ghost"
+        size="icon"
+        disabled={pinning}
+        aria-label={pinned ? `取消置顶任务 #${task.id}` : `置顶任务 #${task.id}`}
+        title={pinned ? "取消置顶" : "置顶"}
+        onClick={async () => {
+          setPinning(true);
+          try {
+            await onTogglePinned(task);
+          } finally {
+            setPinning(false);
+          }
+        }}
+      >
+        {taskPinIcon(pinning, pinned)}
+      </Button>
+      <Dialog open={renameOpen} onOpenChange={setRenameOpen}>
+        <DialogContent className="sm:max-w-md">
+          <DialogHeader>
+            <DialogTitle>重命名任务 #{task.id}</DialogTitle>
+            <DialogDescription>新名称只用于列表和详情展示，不会改变任务描述、目标或执行状态。</DialogDescription>
+          </DialogHeader>
+          <FieldGroup>
+            <Field>
+              <FieldLabel htmlFor={`task-rename-${task.id}`}>任务名称</FieldLabel>
+              <Input
+                id={`task-rename-${task.id}`}
+                value={name}
+                maxLength={200}
+                autoFocus
+                onChange={(event) => setName(event.target.value)}
+                onKeyDown={(event) => {
+                  if (event.key === "Enter") {
+                    event.preventDefault();
+                    void saveName();
+                  }
+                }}
+              />
+            </Field>
+          </FieldGroup>
+          <DialogFooter>
+            <DialogClose asChild>
+              <Button variant="outline" disabled={saving}>
+                取消
+              </Button>
+            </DialogClose>
+            <Button disabled={saving || !name.trim()} onClick={() => void saveName()}>
+              {saving && <Spinner data-icon="inline-start" />}
+              保存
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </>
+  );
+}
+
 // 三态图标分开写而非嵌套三元:仓库 Biome 基线禁 noNestedTernary。
 function taskControlIcon(pending: boolean, action: "pause" | "resume" | null) {
   if (pending) return <Loader2Icon className="animate-spin" />;

web/src/lib/api.ts

@@ -215,6 +215,9 @@ export const api = {
       coverage_enabled: input.coverageEnabled ?? true, // 默认开;false=关闭资产覆盖度功能
     }),
   taskCategories: () => get<{ categories: TaskCategory[] }>("/task-categories").then((r) => arr(r.categories)),
+  updateTask: (id: string, input: { name?: string; pinned?: boolean }) => patch<Task>(`/tasks/${id}`, input),
+  renameTask: (id: string, name: string) => patch<Task>(`/tasks/${id}`, { name }),
+  pinTask: (id: string, pinned: boolean) => patch<Task>(`/tasks/${id}`, { pinned }),
   createTaskCategory: (name: string) => post<TaskCategory>("/task-categories", { name }),
   renameTaskCategory: (id: number, name: string) => patch<TaskCategory>(`/task-categories/${id}`, { name }),
   deleteTaskCategory: (id: number) => del<{ deleted: number }>(`/task-categories/${id}`),
@@ -704,6 +707,8 @@ export const api = {
   updateConversationProfile: (id: number, llm_profile_id: number | null) =>
     patch<{ ok: boolean }>(`/conversations/${id}/profile`, { llm_profile_id }),
   deleteConversation: (id: number) => del<{ deleted: number }>(`/conversations/${id}`),
+  deleteConversations: (ids: number[]) =>
+    post<{ items: { id: number; ok: boolean; error?: string }[] }>("/conversations/delete/batch", { ids }),
   // Incremental tail: steps after `since` (id ASC) — live poll + post-send fetch.
   conversationMessages: (id: number, since = 0) =>
     get<{ items: Activity[]; cursor: number; running: boolean }>(`/conversations/${id}/messages?since=${since}`).then(

web/src/lib/mock/handler.ts

@@ -233,6 +233,16 @@ function sortMockConversations() {
   });
 }
 
+function sortMockTasks() {
+  mockTasks.sort((a, b) => {
+    const aPinned = a.pinned_at ? 1 : 0;
+    const bPinned = b.pinned_at ? 1 : 0;
+    if (aPinned !== bPinned) return bPinned - aPinned;
+    if (a.pinned_at !== b.pinned_at) return (b.pinned_at ?? "").localeCompare(a.pinned_at ?? "");
+    return b.id.localeCompare(a.id, undefined, { numeric: true });
+  });
+}
+
 function normalizedTemplateName(value: unknown): string {
   return String(value ?? "")
     .trim()
@@ -268,7 +278,10 @@ function route(m: string, path: string, seg: string[], q: URLSearchParams, b: Re
   if (path === "/auth/change-password") return { ok: true };
 
   // ── tasks ──
-  if (path === "/tasks" && m === "GET") return { tasks: mockTasks, active: mockActiveTask };
+  if (path === "/tasks" && m === "GET") {
+    sortMockTasks();
+    return { tasks: mockTasks, active: mockActiveTask };
+  }
   if (path === "/tasks" && m === "POST") {
     let suffix = 1;
     while (mockTasks.some((item) => item.id === `t-new-${suffix}`)) suffix++;
@@ -436,6 +449,17 @@ function route(m: string, path: string, seg: string[], q: URLSearchParams, b: Re
     if (index >= 0) mockTaskTemplates.splice(index, 1);
     return { deleted: id };
   }
+  if (seg[0] === "tasks" && seg.length === 2 && m === "PATCH") {
+    const task = mockTasks.find((item) => item.id === seg[1]);
+    if (!task) throw new Error("任务不存在");
+    if (typeof b.name === "string") task.name = b.name.trim();
+    if (typeof b.pinned === "boolean") {
+      task.pinned = b.pinned;
+      task.pinned_at = b.pinned ? (task.pinned_at ?? new Date().toISOString()) : null;
+    }
+    sortMockTasks();
+    return structuredClone(task);
+  }
   if (seg[0] === "tasks" && seg.length === 2 && m === "DELETE") {
     const id = seg[1];
     const index = mockTasks.findIndex((item) => item.id === id);
@@ -1187,6 +1211,18 @@ function route(m: string, path: string, seg: string[], q: URLSearchParams, b: Re
     if (index >= 0) mockConversations.splice(index, 1);
     return { deleted: id };
   }
+  if (path === "/conversations/delete/batch" && m === "POST") {
+    const ids = Array.isArray(b.ids)
+      ? [...new Set(b.ids.map(Number).filter((id) => Number.isInteger(id) && id > 0))]
+      : [];
+    const items = ids.map((id) => {
+      const index = mockConversations.findIndex((item) => item.id === id);
+      if (index < 0) return { id, ok: false, error: "conversation not found" };
+      mockConversations.splice(index, 1);
+      return { id, ok: true };
+    });
+    return { items };
+  }
   if (seg[0] === "conversations" && seg[2] === "messages" && seg.length === 3 && m === "GET") {
     const items = D.conversationMessages[Number(seg[1])] ?? [];
     return { items, cursor: items.length ? items[items.length - 1].seq : 0, running: false };

web/src/lib/types.ts

@@ -9,6 +9,8 @@ export interface Task {
   name?: string; // 可选任务名称;空/缺省=未命名,展示时回退到描述
   category_id?: number;
   category_name?: string;
+  pinned?: boolean;
+  pinned_at?: string | null;
   description: string;
   goal: string;
   status: TaskStatus;