chore: clean up root directory — archive completed docs, add marketing assets
Move 9 completed/historical docs from root to docs/archive/:
- ARCHITECTURE.md, BACKLOG.md, CLAUDE-SETUP.md, MICHAEL-NOTES.md
- IMPLEMENTATION-SUMMARY-ISSUE-34.md, PHASE-2.5-PERSONAL-BRANCHING.md
- REBRAND-IMPLEMENTATION-GUIDE.md, TS-EXAMPLES.md, WORKSPACE-REMOVAL-PLAN.md
Move QUICK-START.md to docs/
Add previously untracked files:
- DEV-ENV.md (devserver01 setup guide)
- docs/marketing/ (one-pager HTML + PDF)
- docs/ResolutionFlow_Pivot_Architecture.docx
Update CLAUDE.md rebrand guide reference path.
Deleted temp files: .temp_fixed.py, .temp_fixed2.py, ai_provider_*.py,
ai_provider.patch, test_write.txt
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>