Hotfix/fix get two level

[Enfest]

Check List

1. Does your submission pass tests by running make test?
2. If you have specified a [no ci] tag, does your submission also pass tests by running make test-docker?
3. Have you linted your code locally with make lint before submission?

Added

Changed

• test code for ts2qc

Fixed

• _get_two_level in decomposer

Removed

[JoshuaLau0220]

Hi, I've redirected the PR to develop because the decomposer is not merged into main yet.
Also, please delete the two test cases in the project directory or move them into appropriate folders, thanks!

[chinyi0523]

Hi, I've redirected the PR to develop because the decomposer is not merged into main yet. Also, please delete the two test cases in the project directory or move them into appropriate folders, thanks!

I told her to push and I would modify the testcases and code quality.