fixed some uuid errors

main.js

@@ -35,7 +35,7 @@ app.post('/submit', function (req, res) {
 
     try {
         fetch(req.body.file).then(res => {
-            res.arrayBuffer().then(r => fs.writeFileSync("./audio_file", Buffer.from(r)));
+            res.arrayBuffer().then(r => fs.writeFileSync("./"+uuid, Buffer.from(r)));
         })
 
         res.end("api_success");
@@ -53,10 +53,10 @@ app.post('/submit', function (req, res) {
     let kind_of = "";
     switch (req.body.kind) {
         case 0:
-            kind_of = "audio-separator ./audio_file --model_filename UVR-MDX-NET-Inst_HQ_5.onnx  --mdx_segment_size 4000 --mdx_overlap 0.85 --output_format MP3 --mdx_batch_size 20 --output_dir "+uuid
+            kind_of = `audio-separator ./${uuid} --model_filename UVR-MDX-NET-Inst_HQ_5.onnx  --mdx_segment_size 4000 --mdx_overlap 0.85 --output_format MP3 --mdx_batch_size 20 --output_dir `+uuid
             break;
         case 1:
-            kind_of = "audio-separator ./audio_file --model_filename UVR_MDXNET_KARA.onnx  --mdx_segment_size 4000 --mdx_overlap 0.85 --output_format MP3 --mdx_batch_size 20 --output_dir "+uuid
+            kind_of = `audio-separator ./${uuid} --model_filename UVR_MDXNET_KARA.onnx  --mdx_segment_size 4000 --mdx_overlap 0.85 --output_format MP3 --mdx_batch_size 20 --output_dir `+uuid
             break;
 
     }
@@ -65,7 +65,7 @@ app.post('/submit', function (req, res) {
         onError: errcb
     }).then(() => {
 
-        db.execute(("INSERT INTO instrunet_entry (uuid, song_name, album_name, link_to, databinary, artist,kind) VALUES (?,?,?,?,?,?,?)"), [crypto.randomUUID(), req.body.name, req.body.albumName, req.body.link, fs.readFileSync('./output/audio_file_(Instrumental)_UVR_MDXNET_KARA.mp3'), req.body.artist, req.body.kind])
+        db.execute(("INSERT INTO instrunet_entry (uuid, song_name, album_name, link_to, databinary, artist,kind) VALUES (?,?,?,?,?,?,?)"), [uuid, req.body.name, req.body.albumName, req.body.link, fs.readFileSync(`./${uuid}/${uuid}_(Instrumental)_UVR_MDXNET_KARA.mp3`), req.body.artist, req.body.kind])
         db.unprepare()
         fs.rm(uuid, {
             recursive: true,