fix error result cache something else

proto/openai.proto

@@ -0,0 +1,12 @@
+syntax = "proto3";
+option go_package = "/pb";
+package pb;
+
+message OpenAIError {
+	OpenAIErrorDetail error = 1;
+}
+
+message OpenAIErrorDetail {
+	string message = 1;
+	string type = 2;
+}