ring-researching-features

@lerianstudio

Researching codebase patterns, external best practices, framework constraints, and UX/product context into research.md (with file:line refs) before any planning document is written. Gate 0 of ring:using-pm-team; runs parallel discovery and selects a greenfield/modification/integration mode. Use before pre-dev planning a new feature or modification. Skip for trivial changes or when a recent research.md already exists.