feat: volcengine支持自定义域名

relay/channel/volcengine/constants.go

@@ -9,6 +9,11 @@ var ModelList = []string{
 	"Doubao-lite-4k",
 	"Doubao-embedding",
 	"doubao-seedream-4-0-250828",
+	"seedream-4-0-250828",
+	"doubao-seedance-1-0-pro-250528",
+	"seedance-1-0-pro-250528",
+	"doubao-seed-1-6-thinking-250715",
+	"seed-1-6-thinking-250715",
 }
 
 var ChannelName = "volcengine"