fix: cohere SafetyMode

relay/channel/cohere/relay-cohere.go

@@ -22,7 +22,9 @@ func requestOpenAI2Cohere(textRequest dto.GeneralOpenAIRequest) *CohereRequest {
 		Message:     "",
 		Stream:      textRequest.Stream,
 		MaxTokens:   textRequest.GetMaxTokens(),
-		SafetyMode:  common.CohereSafetySetting,
+	}
+	if common.CohereSafetySetting != "NONE" {
+		cohereReq.SafetyMode = common.CohereSafetySetting
 	}
 	if cohereReq.MaxTokens == 0 {
 		cohereReq.MaxTokens = 4000