[feat] MQTT Roles 字段调整

base/mqtt.go

@@ -9,7 +9,7 @@ type Mqtt struct {
 	UpdatedAt    string           `db:"updated_at"`
 	CreatedAt    string           `db:"created_at"`
 	Enabled      bool             `db:"enabled"`
-	Roles        []map[string]int64 `db:"roles"`
+	Roles        map[string]int64 `db:"roles"`
 	Params       []ResApiParam    `db:"params"`
 }