perf: speed-up musicDB load

sdgb-api/src/all_net/mod.rs

@@ -4,12 +4,13 @@ use nyquest::{AsyncClient, Body, Request, header::USER_AGENT};
 
 mod model;
 use model::{GetResponse, GetUserId};
+use serde::Serialize;
 
 pub struct QRCode<'a> {
     pub qrcode_content: &'a str,
 }
 
-#[derive(Debug, snafu::Snafu)]
+#[derive(Debug, snafu::Snafu, Serialize)]
 pub enum QRLoginError {
     #[snafu(display("QRCode expired [10mins]"))]
     QRCodeExpired10,
@@ -23,13 +24,17 @@ pub enum QRLoginError {
     #[snafu(context(false))]
     #[snafu(display("request error: {source}"))]
     NyquestError {
+        #[serde(skip)]
         source: nyquest::Error,
+        #[serde(skip)]
         backtrace: Backtrace,
     },
 
     #[snafu(context(false))]
     JSONError {
+        #[serde(skip)]
         source: serde_json::error::Error,
+        #[serde(skip)]
         backtrace: Backtrace,
     },
 }