Add research exploration notes (principles, challenges, implementation guidance, skills index, session log) and gap/conflict analysis against the current repo vision and roadmap. Sharpen the roadmap housekeeping item with the grill-me intent, central scope question, and expected output (ADR + updated chunk scope for 2, 3, and 4). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>