diff --git a/internal/service/bot_features_test.go b/internal/service/bot_features_test.go
index 5cec584..72d975d 100644
--- a/internal/service/bot_features_test.go
+++ b/internal/service/bot_features_test.go
@@ -319,6 +319,40 @@ func TestBotAdminCommandsManageDevicePolicy(t *testing.T) {
 	}
 }
 
+func TestBotRegistrationCommandUsesOpenRegQuota(t *testing.T) {
+	ctx := context.Background()
+	repos, bot := newBotTestService(t)
+	admin := &model.User{Username: "root", PasswordHash: "x", Role: "admin", IsActive: true}
+	if err := repos.User.Create(ctx, admin); err != nil {
+		t.Fatal(err)
+	}
+	if err := repos.Setting.Set(ctx, SettingOpenRegEnabled, "false"); err != nil {
+		t.Fatal(err)
+	}
+	if err := repos.DB.Create(&model.TelegramBinding{
+		TelegramUserID: 9051,
+		TelegramName:   "@root",
+		ChatID:         9051,
+		UserID:         admin.ID,
+	}).Error; err != nil {
+		t.Fatal(err)
+	}
+	channel := &model.NotifyChannel{Name: "Telegram", Type: "telegram", Enabled: true, Config: `{"admin_user_ids":"9051"}`}
+	msg := &TelegramMessage{From: TelegramUser{ID: 9051, Username: "root"}, Chat: TelegramChat{ID: 9051, Type: "private"}}
+
+	reply, err := bot.executeCommand(ctx, channel, msg, "/registration on 2")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(reply.Text, "2 个名额") {
+		t.Fatalf("expected quota feedback, got %q", reply.Text)
+	}
+	capacity := bot.loadCapacity(ctx)
+	if !capacity.OpenRegOn || capacity.OpenRegLimit != 2 || capacity.OpenRegUsed != 0 {
+		t.Fatalf("registration command should open quota-aware registration, got %+v", capacity)
+	}
+}
+
 func TestBotUserCommandsAndAdminGate(t *testing.T) {
 	ctx := context.Background()
 	repos, bot := newBotTestService(t)
@@ -373,3 +407,85 @@ func TestBotUserCommandsAndAdminGate(t *testing.T) {
 		t.Fatal("device should be marked kicked")
 	}
 }
+
+func TestBotRedeemRegisterRequiresAllowedTelegramUser(t *testing.T) {
+	ctx := context.Background()
+	_, bot := newBotTestService(t)
+	code, err := bot.generateCode(ctx, model.RegistrationCodeRegister, 30, 0, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	channel := &model.NotifyChannel{Name: "Telegram", Type: "telegram", Enabled: true, Config: `{"admin_user_ids":"9001"}`}
+	msg := &TelegramMessage{From: TelegramUser{ID: 9201, Username: "outsider"}, Chat: TelegramChat{ID: 9201, Type: "private"}}
+
+	reply, err := bot.executeCommand(ctx, channel, msg, "/redeem_register "+code.Code)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(reply.Text, "不在管理员配置") {
+		t.Fatalf("outsider should not redeem register code, got %q", reply.Text)
+	}
+
+	channel.Config = `{"admin_user_ids":"9201"}`
+	reply, err = bot.executeCommand(ctx, channel, msg, "/redeem_register "+code.Code)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(reply.Text, "兑换成功") {
+		t.Fatalf("allowed user should redeem register code, got %q", reply.Text)
+	}
+	if binding := bot.telegramBinding(ctx, 9201); binding == nil {
+		t.Fatal("redeemed account should be bound to telegram user")
+	}
+}
+
+func TestBotAdminCodeAndUserCommands(t *testing.T) {
+	ctx := context.Background()
+	repos, bot := newBotTestService(t)
+	admin := &model.User{Username: "root", PasswordHash: "x", Role: "admin", IsActive: true}
+	user := &model.User{Username: "viewer", PasswordHash: "x", Role: "user", IsActive: true}
+	if err := repos.User.Create(ctx, admin); err != nil {
+		t.Fatal(err)
+	}
+	if err := repos.User.Create(ctx, user); err != nil {
+		t.Fatal(err)
+	}
+	if err := repos.DB.Create(&model.TelegramBinding{
+		TelegramUserID: 9301,
+		TelegramName:   "@root",
+		ChatID:         9301,
+		UserID:         admin.ID,
+	}).Error; err != nil {
+		t.Fatal(err)
+	}
+	channel := &model.NotifyChannel{Name: "Telegram", Type: "telegram", Enabled: true, Config: `{"admin_user_ids":"9301"}`}
+	msg := &TelegramMessage{From: TelegramUser{ID: 9301, Username: "root"}, Chat: TelegramChat{ID: 9301, Type: "private"}}
+
+	reply, err := bot.executeCommand(ctx, channel, msg, "/gencode renew 90 7")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(reply.Text, "已生成续期码") {
+		t.Fatalf("expected generated renew code, got %q", reply.Text)
+	}
+
+	reply, err = bot.executeCommand(ctx, channel, msg, "/renew_user viewer 30")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(reply.Text, "viewer") {
+		t.Fatalf("renew command should return user actions, got %q", reply.Text)
+	}
+	updated, _ := repos.User.FindByID(ctx, user.ID)
+	if updated.ExpiredAt == nil || updated.ExpiredAt.Before(time.Now()) {
+		t.Fatalf("renew_user should set future expiry, got %v", updated.ExpiredAt)
+	}
+
+	reply, err = bot.executeCommand(ctx, channel, msg, "/delete_user viewer")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(reply.Text, "需要确认") {
+		t.Fatalf("delete without confirm should be rejected, got %q", reply.Text)
+	}
+}
diff --git a/internal/service/telegram_api_test.go b/internal/service/telegram_api_test.go
index 8e838ee..d900695 100644
--- a/internal/service/telegram_api_test.go
+++ b/internal/service/telegram_api_test.go
@@ -110,4 +110,9 @@ func TestTelegramCommandFiltering(t *testing.T) {
 	if telegramSupportedCommand("/签到") {
 		t.Fatal("unrelated group bot command should not be handled")
 	}
+	for _, cmd := range []string{"/signin", "/redeem", "/gencode", "/users", "/renew_user", "/delete_user", "/cleanup_rule"} {
+		if !telegramSupportedCommand(cmd) {
+			t.Fatalf("%s should be supported so group slash commands get feedback", cmd)
+		}
+	}
 }
diff --git a/internal/service/telegram_bot.go b/internal/service/telegram_bot.go
index 6f3efdb..8c19f70 100644
--- a/internal/service/telegram_bot.go
+++ b/internal/service/telegram_bot.go
@@ -255,6 +255,8 @@ func (s *TelegramBotService) executeCommand(ctx context.Context, channel *model.
 		return s.cmdHideAdult(ctx, msg, args), nil
 	case "/account", "/me":
 		return s.replyAccount(ctx, msg), nil
+	case "/signin", "/checkin":
+		return s.replySignIn(ctx, msg), nil
 	case "/devices":
 		return s.replyDevices(ctx, msg), nil
 	case "/kick":
@@ -263,6 +265,12 @@ func (s *TelegramBotService) executeCommand(ctx context.Context, channel *model.
 		return s.cmdSetName(ctx, msg, args), nil
 	case "/setpass", "/passwd", "/password":
 		return s.cmdSetPass(ctx, msg, args), nil
+	case "/redeem":
+		return s.cmdRedeem(ctx, channel, msg, args), nil
+	case "/redeem_register":
+		return s.cmdRedeemRegister(ctx, channel, msg, args), nil
+	case "/redeem_renew":
+		return s.cmdRedeemRenew(ctx, msg, args), nil
 	case "/register", "/reg", "/signup":
 		return s.cmdRegister(ctx, channel, msg, args), nil
 	case "/registration", "/reg_switch", "/openreg":
@@ -270,6 +278,31 @@ func (s *TelegramBotService) executeCommand(ctx context.Context, channel *model.
 			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
 		}
 		return s.cmdRegistrationToggle(ctx, args), nil
+	case "/capacity":
+		if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
+			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
+		}
+		return s.replyCapacity(ctx), nil
+	case "/users":
+		if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
+			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
+		}
+		return s.replyUserList(ctx), nil
+	case "/gencode":
+		if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
+			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
+		}
+		return s.cmdGenCode(ctx, msg, args), nil
+	case "/renew_user":
+		if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
+			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
+		}
+		return s.cmdUserRenew(ctx, args), nil
+	case "/delete_user":
+		if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
+			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
+		}
+		return s.cmdUserDelete(ctx, args), nil
 	case "/devicepolicy", "/policy":
 		if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
 			return telegramCommandReply{Text: "此命令仅管理员可用。"}, nil
@@ -352,8 +385,10 @@ func telegramCommandName(text string) string {
 func telegramSupportedCommand(cmd string) bool {
 	switch cmd {
 	case "/start", "/menu", "/cancel", "/help", "/hideadult", "/hide_adult", "/adult",
-		"/account", "/me", "/devices", "/kick", "/setname", "/rename", "/setpass", "/passwd", "/password",
+		"/account", "/me", "/signin", "/checkin", "/devices", "/kick", "/setname", "/rename", "/setpass", "/passwd", "/password",
+		"/redeem", "/redeem_register", "/redeem_renew",
 		"/register", "/reg", "/signup", "/registration", "/reg_switch", "/openreg",
+		"/capacity", "/users", "/gencode", "/renew_user", "/delete_user",
 		"/devicepolicy", "/policy", "/antishare", "/cleanup", "/cleanup_mode", "/cleanup_rule",
 		"/ban", "/unban", "/status", "/search", "/downloads", "/stats":
 		return true
@@ -388,7 +423,7 @@ func (s *TelegramBotService) cmdStart(ctx context.Context, msg *TelegramMessage,
 			}
 		}
 		hint := "如果没有账号，请联系管理员注册。"
-		if s.registrationEnabled(ctx) {
+		if s.openRegEnabled(ctx) {
 			hint = "如果还没有账号，可直接注册：\n<code>/register 用户名 密码</code>\n或：<code>/register 用户名-密码</code>"
 		}
 		return telegramCommandReply{Text: "<b>欢迎使用 MediaStationGo</b>\n\n普通用户请先绑定账号：\n<code>/start 用户名 密码</code>\n或：<code>/start 用户名-密码</code>\n\n" + hint}
@@ -476,27 +511,47 @@ func (s *TelegramBotService) cmdRegister(ctx context.Context, channel *model.Not
 	}
 }
 
-// cmdRegistrationToggle 处理管理员的 /registration on|off|status 命令。
+// cmdRegistrationToggle handles /registration and /openreg. It uses the same
+// quota-aware open-registration state as the inline Bot menu.
 func (s *TelegramBotService) cmdRegistrationToggle(ctx context.Context, args []string) telegramCommandReply {
-	current := s.registrationEnabled(ctx)
 	if len(args) == 0 || strings.EqualFold(strings.TrimSpace(args[0]), "status") {
-		state := map[bool]string{true: "已开启", false: "已关闭"}[current]
-		return telegramCommandReply{Text: fmt.Sprintf("普通用户 Bot 注册功能当前<b>%s</b>。\n\n开启：<code>/registration on</code>\n关闭：<code>/registration off</code>", state)}
+		c := s.loadCapacity(ctx)
+		state := "已关闭"
+		if c.OpenRegOn {
+			if c.OpenRegLimit > 0 {
+				state = fmt.Sprintf("已开启（%d/%d 名额）", c.OpenRegUsed, c.OpenRegLimit)
+			} else {
+				state = "已开启（不限名额，受授权上限约束）"
+			}
+		}
+		return telegramCommandReply{Text: fmt.Sprintf("普通用户 Bot 注册功能当前<b>%s</b>。\n剩余可注册：<b>%d</b> 人。\n\n开启：<code>/registration on 10</code>\n不限：<code>/registration on 0</code>\n关闭：<code>/registration off</code>", state, c.Remaining())}
 	}
-	var next bool
 	switch strings.ToLower(strings.TrimSpace(args[0])) {
 	case "on", "true", "1", "open", "enable", "enabled", "开启", "打开", "开":
-		next = true
+		limit := 0
+		if len(args) > 1 {
+			n, err := strconv.Atoi(strings.TrimSpace(args[1]))
+			if err != nil || n < 0 {
+				return telegramCommandReply{Text: "名额必须是非负整数，0 表示不限名额。"}
+			}
+			limit = n
+		}
+		if err := s.openRegistration(ctx, limit); err != nil {
+			return telegramCommandReply{Text: "开启失败：" + err.Error()}
+		}
+		label := "不限名额"
+		if limit > 0 {
+			label = fmt.Sprintf("%d 个名额", limit)
+		}
+		return telegramCommandReply{Text: "普通用户 Bot 注册功能已开启：" + label + "。"}
 	case "off", "false", "0", "close", "disable", "disabled", "关闭", "关":
-		next = false
+		if err := s.closeRegistration(ctx); err != nil {
+			return telegramCommandReply{Text: "关闭失败：" + err.Error()}
+		}
+		return telegramCommandReply{Text: "普通用户 Bot 注册功能已关闭。"}
 	default:
-		return telegramCommandReply{Text: "参数无效，请使用 <code>/registration on</code> 或 <code>/registration off</code>。"}
+		return telegramCommandReply{Text: "参数无效，请使用 <code>/registration on [名额]</code> 或 <code>/registration off</code>。"}
 	}
-	if err := s.setRegistrationEnabled(ctx, next); err != nil {
-		return telegramCommandReply{Text: "更新失败：" + err.Error()}
-	}
-	state := map[bool]string{true: "已开启", false: "已关闭"}[next]
-	return telegramCommandReply{Text: fmt.Sprintf("普通用户 Bot 注册功能<b>%s</b>。此设置与系统设置页同步。", state)}
 }
 
 // cmdHelp 处理 /help 命令。
@@ -504,17 +559,19 @@ func (s *TelegramBotService) cmdHelp(ctx context.Context, msg *TelegramMessage)
 	channel := s.findChannelForMessage(ctx, msg)
 	if !s.telegramUserIsAdmin(ctx, channel, msg.From.ID) {
 		register := ""
-		if s.registrationEnabled(ctx) {
+		if s.openRegEnabled(ctx) {
 			register = "<b>/register 用户名 密码</b> — 注册新账号\n"
 		}
 		return "<b>MediaStationGo 用户命令</b>\n\n" +
 			register +
 			"<b>/start 用户名 密码</b> — 绑定账号\n" +
 			"<b>/account</b> — 查看账号状态\n" +
+			"<b>/signin</b> — 签到\n" +
 			"<b>/devices</b> — 查看登录设备\n" +
 			"<b>/kick all|编号</b> — 踢下线设备\n" +
 			"<b>/setname 新用户名</b> — 修改用户名\n" +
 			"<b>/setpass 新密码</b> — 修改密码\n" +
+			"<b>/redeem 兑换码</b> — 注册或续期兑换\n" +
 			"<b>/hideadult on|off</b> — 隐藏或显示成人目录\n\n" +
 			"系统状态、搜索、下载列表与统计命令仅管理员可用。"
 	}
@@ -522,9 +579,13 @@ func (s *TelegramBotService) cmdHelp(ctx context.Context, msg *TelegramMessage)
 		"<b>/start</b> — 开始使用\n" +
 		"<b>/help</b> — 帮助信息\n" +
 		"<b>/account</b> / <b>/devices</b> / <b>/kick all|编号</b> — 用户自助设备管理\n" +
+		"<b>/signin</b> / <b>/redeem 兑换码</b> — 签到与兑换\n" +
 		"<b>/setname 新用户名</b> / <b>/setpass 新密码</b> — 用户自助改名改密\n" +
 		"<b>/register 用户名 密码</b> — 注册新账号（需管理员开启）\n" +
-		"<b>/registration on|off</b> — 开启/关闭普通用户注册（管理员）\n" +
+		"<b>/registration on [名额]|off</b> — 开启/关闭普通用户注册（管理员）\n" +
+		"<b>/capacity</b> / <b>/users</b> — 容量与用户管理（管理员）\n" +
+		"<b>/gencode register|renew 天数 [有效天数]</b> — 生成兑换码（管理员）\n" +
+		"<b>/renew_user 用户名 天数</b> / <b>/delete_user 用户名 confirm</b> — 续期/删除用户（管理员）\n" +
 		"<b>/antishare on play=3 login=3 warn=2</b> — 防共享策略（管理员）\n" +
 		"<b>/cleanup on|off|run</b> — 删号规则开关/巡检（管理员）\n" +
 		"<b>/cleanup_mode any|all|count 2</b> — 保号模式（管理员）\n" +
diff --git a/internal/service/telegram_menu.go b/internal/service/telegram_menu.go
index 3053be0..853d9a4 100644
--- a/internal/service/telegram_menu.go
+++ b/internal/service/telegram_menu.go
@@ -274,6 +274,31 @@ func (s *TelegramBotService) cmdSetPass(ctx context.Context, msg *TelegramMessag
 	return s.selfSetPass(ctx, msg, strings.Join(args, " "))
 }
 
+func (s *TelegramBotService) cmdRedeem(ctx context.Context, channel *model.NotifyChannel, msg *TelegramMessage, args []string) telegramCommandReply {
+	if len(args) == 0 {
+		return telegramCommandReply{Text: "请发送：<code>/redeem 兑换码</code>\n未绑定账号时自动尝试注册码；已绑定账号时自动尝试续期码。"}
+	}
+	code := strings.Join(args, " ")
+	if s.boundUser(ctx, msg.From.ID) == nil {
+		return s.redeemRegisterFlow(ctx, channel, msg, code)
+	}
+	return s.redeemRenewFlow(ctx, msg, code)
+}
+
+func (s *TelegramBotService) cmdRedeemRegister(ctx context.Context, channel *model.NotifyChannel, msg *TelegramMessage, args []string) telegramCommandReply {
+	if len(args) == 0 {
+		return telegramCommandReply{Text: "请发送：<code>/redeem_register 注册兑换码</code>"}
+	}
+	return s.redeemRegisterFlow(ctx, channel, msg, strings.Join(args, " "))
+}
+
+func (s *TelegramBotService) cmdRedeemRenew(ctx context.Context, msg *TelegramMessage, args []string) telegramCommandReply {
+	if len(args) == 0 {
+		return telegramCommandReply{Text: "请发送：<code>/redeem_renew 续期兑换码</code>"}
+	}
+	return s.redeemRenewFlow(ctx, msg, strings.Join(args, " "))
+}
+
 func (s *TelegramBotService) replyAccount(ctx context.Context, msg *TelegramMessage) telegramCommandReply {
 	user := s.boundUser(ctx, msg.From.ID)
 	if user == nil {
@@ -387,6 +412,12 @@ func (s *TelegramBotService) selfSetPass(ctx context.Context, msg *TelegramMessa
 // ── 兑换码流程 ───────────────────────────────────────────────────────────────
 
 func (s *TelegramBotService) redeemRegisterFlow(ctx context.Context, channel *model.NotifyChannel, msg *TelegramMessage, raw string) telegramCommandReply {
+	if channel == nil {
+		channel = s.findChannelForMessage(ctx, msg)
+	}
+	if !s.telegramUserCanBind(ctx, channel, msg.From.ID) {
+		return telegramCommandReply{Text: "当前 Telegram 账号不在管理员配置的绑定群组/频道中，无法兑换注册账号。请先加入管理员配置的群组或频道；如果尚未配置，请联系管理员。"}
+	}
 	rc, errMsg := s.lookupRedeemableCode(ctx, raw, model.RegistrationCodeRegister)
 	if rc == nil {
 		return telegramCommandReply{Text: errMsg}
@@ -518,6 +549,50 @@ func (s *TelegramBotService) replyGenCode(ctx context.Context, msg *TelegramMess
 	}
 }
 
+func (s *TelegramBotService) cmdGenCode(ctx context.Context, msg *TelegramMessage, args []string) telegramCommandReply {
+	if len(args) < 2 {
+		return telegramCommandReply{Text: "用法：<code>/gencode register|renew 天数 [有效天数]</code>\n示例：<code>/gencode register 30</code>、<code>/gencode renew 90 7</code>"}
+	}
+	kind := strings.ToLower(strings.TrimSpace(args[0]))
+	switch kind {
+	case "reg", "register", "注册码":
+		kind = model.RegistrationCodeRegister
+	case "renew", "续期", "续期码":
+		kind = model.RegistrationCodeRenew
+	default:
+		return telegramCommandReply{Text: "类型无效，只支持 register / renew。"}
+	}
+	days, err := strconv.Atoi(args[1])
+	if err != nil || days < 0 {
+		return telegramCommandReply{Text: "天数必须是非负整数，0 表示永久。"}
+	}
+	validDays := 0
+	if len(args) > 2 {
+		validDays, err = strconv.Atoi(args[2])
+		if err != nil || validDays < 0 {
+			return telegramCommandReply{Text: "有效天数必须是非负整数。"}
+		}
+	}
+	createdBy := ""
+	if u := s.boundUser(ctx, msg.From.ID); u != nil {
+		createdBy = u.ID
+	}
+	code, err := s.generateCode(ctx, kind, days, validDays, createdBy)
+	if err != nil {
+		return telegramCommandReply{Text: "生成失败：" + err.Error()}
+	}
+	kindLabel := map[string]string{model.RegistrationCodeRegister: "注册码", model.RegistrationCodeRenew: "续期码"}[code.Kind]
+	dur := "永久"
+	if days > 0 {
+		dur = fmt.Sprintf("%d 天", days)
+	}
+	valid := "长期有效"
+	if validDays > 0 && code.ExpiresAt != nil {
+		valid = "有效至 " + code.ExpiresAt.Format("2006-01-02 15:04")
+	}
+	return telegramCommandReply{Text: fmt.Sprintf("已生成%s（%s，%s）：\n\n<code>%s</code>", kindLabel, dur, valid, code.Code)}
+}
+
 func (s *TelegramBotService) replyUserList(ctx context.Context) telegramCommandReply {
 	users, err := s.repo.User.List(ctx)
 	if err != nil {
@@ -622,6 +697,44 @@ func (s *TelegramBotService) replyUserRenew(ctx context.Context, payload string)
 	return s.replyUserActions(ctx, parts[0])
 }
 
+func (s *TelegramBotService) cmdUserRenew(ctx context.Context, args []string) telegramCommandReply {
+	if len(args) < 2 {
+		return telegramCommandReply{Text: "用法：<code>/renew_user 用户名 天数</code>，天数 0 表示永久。"}
+	}
+	user, _ := s.repo.User.FindByUsername(ctx, args[0])
+	if user == nil {
+		user, _ = s.repo.User.FindByID(ctx, args[0])
+	}
+	if user == nil {
+		return telegramCommandReply{Text: "未找到用户。"}
+	}
+	days, err := strconv.Atoi(args[1])
+	if err != nil || days < 0 {
+		return telegramCommandReply{Text: "天数必须是非负整数。"}
+	}
+	if err := s.applyRenewal(ctx, user.ID, days); err != nil {
+		return telegramCommandReply{Text: "续期失败：" + err.Error()}
+	}
+	return s.replyUserActions(ctx, user.ID)
+}
+
+func (s *TelegramBotService) cmdUserDelete(ctx context.Context, args []string) telegramCommandReply {
+	if len(args) == 0 {
+		return telegramCommandReply{Text: "用法：<code>/delete_user 用户名 confirm</code>\n为避免误删，最后一个参数必须是 confirm。"}
+	}
+	if len(args) < 2 || !strings.EqualFold(args[len(args)-1], "confirm") {
+		return telegramCommandReply{Text: "删除用户需要确认：<code>/delete_user 用户名 confirm</code>"}
+	}
+	user, _ := s.repo.User.FindByUsername(ctx, args[0])
+	if user == nil {
+		user, _ = s.repo.User.FindByID(ctx, args[0])
+	}
+	if user == nil {
+		return telegramCommandReply{Text: "未找到用户。"}
+	}
+	return s.replyUserDelete(ctx, user.ID)
+}
+
 // protectReason returns a non-empty message when a user must not be
 // disabled/deleted (admins and the default admin are protected).
 func (s *TelegramBotService) protectReason(ctx context.Context, userID string) string {