Add AGENTS.md with Cursor Cloud development instructions

[endolith]

Adds AGENTS.md with Cursor Cloud-specific development instructions for future agents working in this repository.

What's included

• Key commands for installing, linting, testing, and running examples
• Caveat that Numba is not installed in the Cloud VM (library works without it)
• Note about ~/.local/bin PATH requirement for pytest and ruff

Verification

All checks pass in the cloud environment:

• Lint (blocking): ruff check --select=E9,F63,F7,F82 . — All checks passed
• Tests: pytest --doctest-modules --ignore=examples --cov — 215/215 passed
• Example script: python examples/weber_1977_expressions.py — reproduces Weber 1977 table correctly
• Hello-world demo: ran multiple voting methods (Black, FPTP, Borda, IRV) on both fixed and random elections

Test output:
pytest_output.log

Hello world output:
hello_world_output.log

_{To show artifacts inline, enable in settings.}

  

[what-the-diff]

PR Summary

• Inclusion of a New Documentation File
  A new document, AGENTS.md has been added to provide more guidance on our framework.

• Instructions for Using Python Library
  Specific instructions for utilizing the Cursor Cloud Python library have been included to assist users in leveraging this library more effectively.

• Providing Key Commands
  We have provided key commands that will ease the process of installation, linting, testing, and running examples. These commands should facilitate smoother operation and navigation within our application.

• Information on Potential Roadblocks
  Some known issues relating to the installation of Numba and specific PATH requirements have also been addressed to ensure users are well-informed about possible challenges they may encounter. We've covered potential roadblocks and how to navigate them.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.31%. Comparing base (8a7213f) to head (ae00921).

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #42   +/-   ##
=======================================
  Coverage   96.31%   96.31%           
=======================================
  Files          19       19           
  Lines         489      489           
=======================================
  Hits          471      471           
  Misses         18       18           

Flag	Coverage Δ
no-numba	95.50% <ø> (ø)
numba	89.16% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.