feat: get support chain api

src/model/mdb/supported_asset_mdb.go

@@ -0,0 +1,12 @@
+package mdb
+
+type SupportedAsset struct {
+	Network string `gorm:"column:network;uniqueIndex:supported_asset_network_token_uindex,priority:1" json:"network"`
+	Token   string `gorm:"column:token;uniqueIndex:supported_asset_network_token_uindex,priority:2" json:"token"`
+	Status  int64  `gorm:"column:status;default:1" json:"status"`
+	BaseModel
+}
+
+func (s *SupportedAsset) TableName() string {
+	return "supported_asset"
+}