refactor: refactor relay part

relay/channel/openai/adaptor.go

@@ -0,0 +1,21 @@
+package openai
+
+import (
+	"github.com/gin-gonic/gin"
+	"net/http"
+)
+
+type Adaptor struct {
+}
+
+func (a *Adaptor) Auth(c *gin.Context) error {
+	return nil
+}
+
+func (a *Adaptor) ConvertRequest(request *GeneralOpenAIRequest) (any, error) {
+	return nil, nil
+}
+
+func (a *Adaptor) DoResponse(c *gin.Context, resp *http.Response) (*ErrorWithStatusCode, *Usage, error) {
+	return nil, nil, nil
+}