v0.0.2-bootstrap — curated README + reference docs

Refreshed public surface synced from abcdDev:

• Curated README (211 lines) with Roles / Process / Resources TOC
• Sharper tag line: opinionated, intent-driven framework for product thinkers
• New illustrations: docs/assets/img/intro.png, docs/assets/img/roles.png
• Operator-facing reference docs under docs/reference/: command surface + facilitator guide
• .gitignore covers .DS_Store + .specstory/

Plugin scaffolding still TBD; this release continues the bootstrap line.