Instructions for AI coding agents working in this repository. Claude Code users: see .claude/CLAUDE.md for the full project guide; the rules below apply to every agent.

• The PR description MUST start from .github/pull_request_template.md. Use that file as the body and fill it in. Do not open a PR with an empty or freeform description.
• Add a ## AI section to the PR description, between the Testing and Frontend sections, containing an **AI:** <tool> (<model ID>) line with the tool you are running in and the exact model ID your environment reports (write unknown if it does not).