Add an AGENTS.md at the repository root describing the project's build,
test and code conventions for AI coding agents (Claude Code, Codex,
Cursor and similar). CLAUDE.md imports it so Claude Code reads the same
guidance.
Add an "AI-assisted contributions" section to CONTRIBUTING.md asking
contributors to understand and test AI-generated code themselves and to
trim the verbose comments these tools tend to produce, and add a
matching checkbox to the pull request template.
Convert the bug report and feature request templates to GitHub issue forms.
Rewrite the pull request template to require that non-trivial changes are
discussed in an issue first, and to spell out that backend changes need a
clean test_all run and a test account for the integration tester before
they can be merged. Document the latter requirement in CONTRIBUTING.md.
Remove the legacy ISSUE_TEMPLATE.md which is superseded by the forms.