improve path processing

backend-golang/app.go

@@ -48,6 +48,7 @@ func (a *App) OnStartup(ctx context.Context) {
 			a.exDir = filepath.Dir(ex) + "/"
 			a.cmdPrefix = "cd " + a.exDir + " && "
 		}
+		os.Chdir(a.exDir)
 	}
 
 	os.Chmod(a.exDir+"backend-rust/webgpu_server", 0777)

backend-golang/file.go

@@ -18,7 +18,7 @@ func (a *App) GetAbsPath(path string) (string, error) {
 	var absPath string
 	var err error
 	if filepath.IsAbs(path) {
-		absPath = path
+		absPath = filepath.Clean(path)
 	} else {
 		absPath, err = filepath.Abs(filepath.Join(a.exDir, path))
 		if err != nil {