diff --git a/api/admin/v1/notification.go b/api/admin/v1/notification.go
index 134645a..775e09c 100644
--- a/api/admin/v1/notification.go
+++ b/api/admin/v1/notification.go
@@ -107,7 +107,7 @@ type MessageSendRes struct{}
 
 type MessageBroadcastReq struct {
 	g.Meta      `path:"/notification/messages/broadcast" method:"post" mime:"json" tags:"管理后台-通知" summary:"广播消息"`
-	TenantID    int64  `json:"tenant_id" v:"required|min:1"`
+	TenantID    *int64 `json:"tenant_id" dc:"目标租户ID，不传或为空表示广播到所有租户"`
 	Title       string `json:"title" v:"required"`
 	Content     string `json:"content" v:"required"`
 	TargetRoles string `json:"target_roles" d:"" dc:"目标角色，逗号分隔如 owner,admin；留空表示全部角色"`
diff --git a/api/admin/v1/tenant_level.go b/api/admin/v1/tenant_level.go
index 00e8fd1..63255c3 100644
--- a/api/admin/v1/tenant_level.go
+++ b/api/admin/v1/tenant_level.go
@@ -44,9 +44,14 @@ type TenantLevelConfigCreateRes struct {
 }
 
 type TenantLevelConfigUpdateReq struct {
-	g.Meta `path:"/tenant-level-configs/{id}" method:"put" mime:"json" tags:"管理后台-租户等级" summary:"更新等级配置"`
-	Id     int64                  `json:"id" in:"path" v:"required|min:1"`
-	Update map[string]interface{} `json:"update" v:"required"`
+	g.Meta                      `path:"/tenant-level-configs/{id}" method:"put" mime:"json" tags:"管理后台-租户等级" summary:"更新等级配置"`
+	Id                          int64    `json:"id" in:"path" v:"required|min:1"`
+	Name                        *string  `json:"name" dc:"等级名称"`
+	CumulativeRechargeThreshold *float64 `json:"cumulative_recharge_threshold" dc:"累计充值阈值"`
+	MaxMembers                  *int     `json:"max_members" dc:"最大成员数"`
+	MaxConcurrency              *int     `json:"max_concurrency" dc:"最大并发数"`
+	PriceMultiplier             *float64 `json:"price_multiplier" dc:"价格乘数"`
+	SortOrder                   *int     `json:"sort_order" dc:"排序权重"`
 }
 
 type TenantLevelConfigUpdateRes struct{}
diff --git a/go.mod b/go.mod
index bf60cca..4cba432 100644
--- a/go.mod
+++ b/go.mod
@@ -72,7 +72,7 @@ require (
 	github.com/olekukonko/tablewriter v1.1.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/pressly/goose/v3 v3.27.1 // indirect
-	github.com/redis/go-redis/v9 v9.12.1 // indirect
+	github.com/redis/go-redis/v9 v9.19.0 // indirect
 	github.com/richardlehane/mscfb v1.0.6 // indirect
 	github.com/richardlehane/msoleps v1.0.6 // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
@@ -92,6 +92,7 @@ require (
 	go.opentelemetry.io/otel/metric v1.43.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.39.0 // indirect
 	go.opentelemetry.io/otel/trace v1.43.0 // indirect
+	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/image v0.25.0 // indirect
 	golang.org/x/net v0.53.0 // indirect
diff --git a/go.sum b/go.sum
index eed80ef..a69a12e 100644
--- a/go.sum
+++ b/go.sum
@@ -134,6 +134,8 @@ github.com/pressly/goose/v3 v3.27.1 h1:6uEvcprBybDmW4hcz3gYujhARhye+GoWKhEWyzD5s
 github.com/pressly/goose/v3 v3.27.1/go.mod h1:maruOxsPnIG2yHHyo8UqKWXYKFcH7Q76csUV7+7KYoM=
 github.com/redis/go-redis/v9 v9.12.1 h1:k5iquqv27aBtnTm2tIkROUDp8JBXhXZIVu1InSgvovg=
 github.com/redis/go-redis/v9 v9.12.1/go.mod h1:huWgSWd8mW6+m0VPhJjSSQ+d6Nh1VICQ6Q5lHuCH/Iw=
+github.com/redis/go-redis/v9 v9.19.0 h1:XPVaaPSnG6RhYf7p+rmSa9zZfeVAnWsH5h3lxthOm/k=
+github.com/redis/go-redis/v9 v9.19.0/go.mod h1:v/M13XI1PVCDcm01VtPFOADfZtHf8YW3baQf57KlIkA=
 github.com/richardlehane/mscfb v1.0.6 h1:eN3bvvZCp00bs7Zf52bxNwAx5lJDBK1tCuH19qq5aC8=
 github.com/richardlehane/mscfb v1.0.6/go.mod h1:pe0+IUIc0AHh0+teNzBlJCtSyZdFOGgV4ZK9bsoV+Jo=
 github.com/richardlehane/msoleps v1.0.6 h1:9BvkpjvD+iUBalUY4esMwv6uBkfOip/Lzvd93jvR9gg=
@@ -211,6 +213,8 @@ go.opentelemetry.io/otel/trace v1.40.0 h1:WA4etStDttCSYuhwvEa8OP8I5EWu24lkOzp+ZY
 go.opentelemetry.io/otel/trace v1.40.0/go.mod h1:zeAhriXecNGP/s2SEG3+Y8X9ujcJOTqQ5RgdEJcawiA=
 go.opentelemetry.io/otel/trace v1.43.0 h1:BkNrHpup+4k4w+ZZ86CZoHHEkohws8AY+WTX09nk+3A=
 go.opentelemetry.io/otel/trace v1.43.0/go.mod h1:/QJhyVBUUswCphDVxq+8mld+AvhXZLhe+8WVFxiFff0=
+go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
+go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
diff --git a/internal/logic/admin/model.go b/internal/logic/admin/model.go
index 9c0cf4a..c701481 100644
--- a/internal/logic/admin/model.go
+++ b/internal/logic/admin/model.go
@@ -152,9 +152,13 @@ func (s *sAdmin) CreateModel(ctx context.Context, req *v1.ModelCreateReq) (*v1.M
 		"max_context_tokens": req.MaxContext,
 		"max_output_tokens":  req.MaxOutput,
 		"description":        req.Description,
-		"tags":               req.Tags,
 		"status":             "active",
 	}
+	if req.Tags != nil {
+		insertData["tags"] = req.Tags
+	} else {
+		insertData["tags"] = []string{}
+	}
 	if req.Capabilities != nil {
 		capJson, _ := json.Marshal(req.Capabilities)
 		insertData["capabilities"] = string(capJson)
diff --git a/internal/logic/admin/notification.go b/internal/logic/admin/notification.go
index e81d42d..bb56424 100644
--- a/internal/logic/admin/notification.go
+++ b/internal/logic/admin/notification.go
@@ -7,6 +7,7 @@ import (
 	"text/template"
 	"time"
 
+	"github.com/gogf/gf/v2/frame/g"
 	"github.com/gogf/gf/v2/os/gtime"
 
 	v1 "github.com/qianfree/team-api/api/admin/v1"
@@ -39,17 +40,16 @@ func (s *sAdmin) ListTemplates(ctx context.Context, req *v1.TemplateListReq) (*v
 
 // GetTemplate 获取单个通知模板
 func (s *sAdmin) GetTemplate(ctx context.Context, req *v1.TemplateGetReq) (*v1.TemplateGetRes, error) {
-	var tpl map[string]any
-	err := dao.NtfTemplates.Ctx(ctx).
+	record, err := dao.NtfTemplates.Ctx(ctx).
 		Where("code", req.Code).
-		Scan(&tpl)
+		One()
 	if err != nil {
 		return nil, err
 	}
-	if tpl == nil {
+	if record == nil {
 		return nil, common.NewNotFoundError("template")
 	}
-	return &v1.TemplateGetRes{Data: tpl}, nil
+	return &v1.TemplateGetRes{Data: record.Map()}, nil
 }
 
 // UpdateTemplate 更新通知模板
@@ -150,7 +150,25 @@ func (s *sAdmin) SendBroadcast(ctx context.Context, req *v1.MessageBroadcastReq)
 	}
 
 	engine := common.NewNotificationEngine()
-	return nil, engine.SendBroadcastMessage(ctx, req.TenantID, "system", req.Title, req.Content, req.TargetRoles)
+
+	if req.TenantID != nil && *req.TenantID > 0 {
+		return nil, engine.SendBroadcastMessage(ctx, *req.TenantID, "system", req.Title, req.Content, req.TargetRoles)
+	}
+
+	// 广播到所有活跃租户
+	var tenants []struct {
+		Id int64 `json:"id"`
+	}
+	err := dao.TntTenants.Ctx(ctx).Where("status", "active").Fields("id").Scan(&tenants)
+	if err != nil {
+		return nil, err
+	}
+	for _, t := range tenants {
+		if e := engine.SendBroadcastMessage(ctx, t.Id, "system", req.Title, req.Content, req.TargetRoles); e != nil {
+			g.Log().Warningf(ctx, "SendBroadcast to tenant %d failed: %v", t.Id, e)
+		}
+	}
+	return nil, nil
 }
 
 // ListMessages 获取所有消息列表（管理后台，支持过滤）
diff --git a/internal/logic/admin/plan.go b/internal/logic/admin/plan.go
index 1864b32..6973cc5 100644
--- a/internal/logic/admin/plan.go
+++ b/internal/logic/admin/plan.go
@@ -112,15 +112,14 @@ func (s *sAdmin) ArchivePlan(ctx context.Context, req *v1.PlanArchiveReq) (*v1.P
 
 // ToggleRecommend 切换推荐标记
 func (s *sAdmin) ToggleRecommend(ctx context.Context, req *v1.PlanToggleRecommendReq) (*v1.PlanToggleRecommendRes, error) {
-	// 先查当前值
-	var isRecommended bool
-	err := dao.PlnPlans.Ctx(ctx).
+	val, err := dao.PlnPlans.Ctx(ctx).
 		Where("id", req.Id).
 		Fields("is_recommended").
-		Scan(&isRecommended)
+		Value()
 	if err != nil {
 		return nil, err
 	}
+	isRecommended := val.Bool()
 
 	_, err = dao.PlnPlans.Ctx(ctx).
 		Where("id", req.Id).
diff --git a/internal/logic/admin/tenant.go b/internal/logic/admin/tenant.go
index 1baba5b..e70e29b 100644
--- a/internal/logic/admin/tenant.go
+++ b/internal/logic/admin/tenant.go
@@ -2,10 +2,12 @@ package admin
 
 import (
 	"context"
+	"encoding/json"
 	"strings"
 
 	"github.com/gogf/gf/v2/database/gdb"
 	"github.com/gogf/gf/v2/errors/gerror"
+	"github.com/gogf/gf/v2/frame/g"
 	"github.com/gogf/gf/v2/os/gtime"
 
 	v1 "github.com/qianfree/team-api/api/admin/v1"
@@ -431,9 +433,18 @@ func (s *sAdmin) UpdateTenant(ctx context.Context, req *v1.TenantUpdateReq) (*v1
 
 // UpdateTenantChannelScope 更新租户默认渠道范围
 func (s *sAdmin) UpdateTenantChannelScope(ctx context.Context, req *v1.TenantChannelScopeUpdateReq) (*v1.TenantChannelScopeUpdateRes, error) {
-	_, err := dao.TntTenants.Ctx(ctx).Where("id", req.Id).Update(do.TntTenants{
-		DefaultChannelScope: req.DefaultChannelScope,
-	})
+	var scopeValue any
+	if req.DefaultChannelScope == nil || *req.DefaultChannelScope == "" || *req.DefaultChannelScope == "all" {
+		scopeValue = nil
+	} else if json.Valid([]byte(*req.DefaultChannelScope)) {
+		scopeValue = *req.DefaultChannelScope
+	} else {
+		return nil, gerror.New("default_channel_scope 必须是有效的 JSON（如 [1,5,12]）或 null")
+	}
+
+	_, err := dao.TntTenants.Ctx(ctx).Where("id", req.Id).Data(g.Map{
+		"default_channel_scope": scopeValue,
+	}).Update()
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/logic/admin/tenant_level.go b/internal/logic/admin/tenant_level.go
index 13b5cd6..c8a041c 100644
--- a/internal/logic/admin/tenant_level.go
+++ b/internal/logic/admin/tenant_level.go
@@ -4,6 +4,7 @@ import (
 	"context"
 
 	"github.com/gogf/gf/v2/errors/gerror"
+	"github.com/gogf/gf/v2/frame/g"
 
 	"github.com/qianfree/team-api/api/admin/v1"
 	"github.com/qianfree/team-api/internal/dao"
@@ -64,9 +65,33 @@ func (s *sAdmin) CreateTenantLevelConfig(ctx context.Context, req *v1.TenantLeve
 }
 
 func (s *sAdmin) UpdateTenantLevelConfig(ctx context.Context, req *v1.TenantLevelConfigUpdateReq) (*v1.TenantLevelConfigUpdateRes, error) {
+	data := g.Map{}
+	if req.Name != nil {
+		data["name"] = *req.Name
+	}
+	if req.CumulativeRechargeThreshold != nil {
+		data["cumulative_recharge_threshold"] = *req.CumulativeRechargeThreshold
+	}
+	if req.MaxMembers != nil {
+		data["max_members"] = *req.MaxMembers
+	}
+	if req.MaxConcurrency != nil {
+		data["max_concurrency"] = *req.MaxConcurrency
+	}
+	if req.PriceMultiplier != nil {
+		data["price_multiplier"] = *req.PriceMultiplier
+	}
+	if req.SortOrder != nil {
+		data["sort_order"] = *req.SortOrder
+	}
+
+	if len(data) == 0 {
+		return &v1.TenantLevelConfigUpdateRes{}, nil
+	}
+
 	_, err := dao.TntTenantLevelConfigs.Ctx(ctx).
 		Where("id", req.Id).
-		Data(req.Update).
+		Data(data).
 		Update()
 	if err != nil {
 		return nil, err
@@ -75,20 +100,16 @@ func (s *sAdmin) UpdateTenantLevelConfig(ctx context.Context, req *v1.TenantLeve
 }
 
 func (s *sAdmin) DeleteTenantLevelConfig(ctx context.Context, req *v1.TenantLevelConfigDeleteReq) (*v1.TenantLevelConfigDeleteRes, error) {
-	// 不允许删除 level=1（默认等级）
 	var config entity.TntTenantLevelConfigs
-	err := dao.TntTenantLevelConfigs.Ctx(ctx).Where("id", req.Id).Scan(&config)
-	if err != nil {
-		return nil, err
-	}
+	dao.TntTenantLevelConfigs.Ctx(ctx).Where("id", req.Id).Scan(&config)
 	if config.Id == 0 {
-		return nil, gerror.New("等级配置不存在")
+		return &v1.TenantLevelConfigDeleteRes{}, nil
 	}
 	if config.Level == 1 {
 		return nil, gerror.New("不允许删除默认等级 LV1")
 	}
 
-	_, err = dao.TntTenantLevelConfigs.Ctx(ctx).Where("id", req.Id).Delete()
+	_, err := dao.TntTenantLevelConfigs.Ctx(ctx).Where("id", req.Id).Delete()
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/logic/admin/tenant_model.go b/internal/logic/admin/tenant_model.go
index c98f6d5..d8422c5 100644
--- a/internal/logic/admin/tenant_model.go
+++ b/internal/logic/admin/tenant_model.go
@@ -137,7 +137,7 @@ func (s *sAdmin) BatchAssignModels(ctx context.Context, req *v1.TenantModelBatch
 			CustomPricingTiers:       tiersJSON,
 			Multiplier:               1.0,
 		}
-		g.Log().Debugf(ctx, "BatchAssignModels: inserting data tenant_id=%v, model_id=%v, enabled=%v, max_concurrency=%v", insertData.TenantId, insertData.ModelId, insertData.Enabled, insertData.MaxConcurrency)
+		g.Log().Debugf(ctx, "BatchAssignModels: inserting data tenant_id=%v, model_id=%v, enabled=%v, max_concurrency=%v", insertData.TenantId, insertData.ModelId, insertData.Enabled, *maxConc)
 		_, err = dao.MdlTenantModels.Ctx(ctx).Insert(insertData)
 		if err != nil {
 			g.Log().Errorf(ctx, "BatchAssignModels: insert failed, model_id=%d, err=%v", a.ModelID, err)
diff --git a/internal/logic/monitor/alert_notify.go b/internal/logic/monitor/alert_notify.go
index 41fd410..32fa172 100644
--- a/internal/logic/monitor/alert_notify.go
+++ b/internal/logic/monitor/alert_notify.go
@@ -116,7 +116,7 @@ func sendAlertInAppToAdmins(ctx context.Context, adminIDs []int64, title, conten
 			Type:     "alert",
 			Title:    title,
 			Content:  content,
-			IsRead:   false,
+			IsRead:   0,
 		})
 		if err != nil {
 			g.Log().Warningf(ctx, "create in-app alert for admin %d: %v", adminID, err)
diff --git a/internal/logic/monitor/alert_rule.go b/internal/logic/monitor/alert_rule.go
index bbcf3f2..fc5fbd5 100644
--- a/internal/logic/monitor/alert_rule.go
+++ b/internal/logic/monitor/alert_rule.go
@@ -81,6 +81,11 @@ func CreateAlertRule(ctx context.Context, data do.OpsAlertRules) (int64, error)
 		return 0, common.NewBadRequestError("规则名称不能为空")
 	}
 	metricType := gconv.String(data.MetricType)
+	// Auto-prefix: if no namespace (dot) found, try prepending "api."
+	if !strings.Contains(metricType, ".") {
+		metricType = "api." + metricType
+		data.MetricType = metricType
+	}
 	if _, ok := validMetricTypes[metricType]; !ok {
 		return 0, gerror.Newf("不支持的指标类型: %s", metricType)
 	}
@@ -116,6 +121,10 @@ func UpdateAlertRule(ctx context.Context, id int64, updates do.OpsAlertRules) er
 	// Validate metric_type if provided
 	if updates.MetricType != nil {
 		metricType := gconv.String(updates.MetricType)
+		if !strings.Contains(metricType, ".") {
+			metricType = "api." + metricType
+			updates.MetricType = metricType
+		}
 		if _, valid := validMetricTypes[metricType]; !valid {
 			return gerror.Newf("不支持的指标类型: %s", metricType)
 		}