feat: support openai images edits api

relay/relaymode/define.go

@@ -11,4 +11,5 @@ const (
 	AudioSpeech
 	AudioTranscription
 	AudioTranslation
+	ImagesEdits
 )

relay/relaymode/helper.go

@@ -24,6 +24,9 @@ func GetByPath(path string) int {
 		relayMode = AudioTranscription
 	} else if strings.HasPrefix(path, "/v1/audio/translations") {
 		relayMode = AudioTranslation
+	} else if strings.HasPrefix(path, "/v1/images/edits") {
+		relayMode = ImagesEdits
 	}
+
 	return relayMode
 }