[BUG]: Cross day terminal needs to continue to use existing temporary directory

[jan-bar]

Version
0.5.3
OS
Windows

Describe the bug
I have a PID = 30804 terminal, and the terminal has never been closed，When I enter the command at the terminal the next day, a new temporary directory will be generated，As shown in the figure below, two temporary directory will be generated

But the environment variable of the terminal is still the earliest temporary directory

The issue I fixed by retaining old temporary directories across days does not solve the current problem
#283

As shown in the figure below, curTmpPath should not be generated every day, and the effective temporary directory should be reused

vfox/internal/path.go

Lines 56 to 65 in d3d731c

	pid := env.GetPid()
	timestamp := util.GetBeginOfToday()
	name := fmt.Sprintf("%d-%d", timestamp, pid)
	curTmpPath := filepath.Join(tmpPath, name)
	if !util.FileExists(curTmpPath) {
	err = os.Mkdir(curTmpPath, 0755)
	if err != nil {
	return nil, fmt.Errorf("create temp dir failed: %w", err)
	}
	}

I recommend adding the __VFOX_CURTMPPATH environment variable to hold the temporary directory.