feat: simple musicDB for title

sdgb-cli/src/main.rs

@@ -7,6 +7,7 @@ use spdlog::{Level, LevelFilter::MoreSevereEqual};
 use sdgb_api::{
     all_net::QRCode,
     auth_lite::{SDGB, SDHJ, delivery_raw},
+    helper::MUSIC_DB,
     title::{
         MaiVersionExt, Sdgb1_40, Sdgb1_50,
         methods::APIMethod,
@@ -52,6 +53,8 @@ async fn main() -> Result<(), Box<dyn snafu::Error>> {
         }
     })?;
 
+    let _ = &*MUSIC_DB;
+
     let Cli {
         command,
         machine_readable,