Created new single source of truth:
- FIREFROST-PROJECT-SCOPE-V2.md (complete vision)
- Archived 13 outdated/superseded documents
- Updated INDEX.md with clear navigation
- Reflects current state (60% Phase 0.5, automation system)
Key updates:
- Three-tier documentation architecture documented
- Automation system fully described
- Authentication phased approach included
- BookStack→MkDocs pivot captured
- Clear current vs future priorities
All historical docs preserved in archive for reference.
Clean slate for moving forward.
