Implementing AlphaSyndrome into qLDPC, local merge of #421

[acasta-yhliu]

This is a local merge request for #421 to make modifications easier.

I've implemented the AlphaSyndrome syndrome measurement scheduler. A few notes:

• Implemented under src/qLDPC/circuits/alphasyndrome.py.
• Implemented test
• Multiprocessing is not introduced. I've encountered OOM because Python would copy the data of the parent process.

Some other things to be checked:

• Copyright information
• Coding style

[acasta-yhliu]

I've moved to a local branch to make changes easier.

uv.lock is removed.

Please check the pyproject.toml when merging.