feat: convert gemini format to openai chat completions

relay/channel/siliconflow/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, req *dto.ClaudeRequest) (any, error) {
 	adaptor := openai.Adaptor{}
 	return adaptor.ConvertClaudeRequest(c, info, req)