Implementing AlphaSyndrome into qLDPC

[acasta-yhliu]

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

[perlinm]

Thank you for the contribution! This is a very nice addition to the library.

At a glance, the code looks clean, and all checks pass, so I expect review to be fairly straightforward. Even so, please allow me a few weeks to go over the changes in detail 🙂

One minor point to flag: I like the addition of a uv.lock file, but perhaps that can be left to a separate PR?

[perlinm]

Also, @acasta-yhliu I invited you to be a contributor with write access to branches of qLDPC. Opening a PR from a branch of qLDPC (or giving me write access to acasta-yhliu:main) would simplify review, as I may poke around to make nitpicky changes without needing to bother you about them.