feat(admin): upgrade admin console UI widgets, add plan & status management, and redesign system status dashboard

sundynix-gateway/internal/store/tenant.go

@@ -386,3 +386,20 @@ func (p *Postgres) ResolveBillingTenantID(ctx context.Context, userID, activeTen
 	}
 	return activeTenantID
 }
+
+// SetTenantPlan 更改租户方案等级。
+func (p *Postgres) SetTenantPlan(ctx context.Context, tenantID string, plan string) error {
+	if p.db == nil {
+		return errStoreDisabled
+	}
+	return p.db.WithContext(ctx).Model(&Tenant{}).Where("id = ?", tenantID).Update("plan", plan).Error
+}
+
+// SetTenantStatus 更改租户状态（active / suspended）。
+func (p *Postgres) SetTenantStatus(ctx context.Context, tenantID string, status string) error {
+	if p.db == nil {
+		return errStoreDisabled
+	}
+	return p.db.WithContext(ctx).Model(&Tenant{}).Where("id = ?", tenantID).Update("status", status).Error
+}
+