PULL_REQUEST_TEMPLATE.md

Summary

Motivation

Checklist

• Branch name follows (kind) name/slug convention (when non-trivial)
• RFC.md on the branch (when required)
• pnpm lint passes
• pnpm test passes
• pnpm knip passes (if relevant)
• New behavior is covered by tests
• Documentation updated where needed
• No editor-specific assumptions introduced into the core pipeline