Proposal for SciPy to adopt the same AI policy as SymPy

[ilayn]

Done. See

AGENTS.txt and CLAUDE.md addition to SciPy repository

As it is getting very common to receive LLM generated pull requests on the repository. It is probably better to meet these tools where they are instead of instructing the PR owner everytime. To do this, there is a pseudo-standard way to front-load the context to these agents that is an AGENTS file and in specific case of Claude Code, the file CLAUDE.md . My proposal is that we add these files to the repository to at least get the basics right in the LLM context. I don’t have too much of an opi…