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>

CLAUDE.md

@@ -27,7 +27,7 @@
 - **Layout:** App shell with persistent sidebar + top bar + main content (CSS Grid). Two fixed atmosphere orbs (cyan top-right, purple bottom-left) behind the shell for ambient glow. See [UI-DESIGN-SYSTEM.md](UI-DESIGN-SYSTEM.md)
 - **Navigation:** Sidebar nav with type sub-items (All Flows → Troubleshooting / Projects / Maintenance). Pinned flows section for quick access. NO workspace switcher. See [UI-DESIGN-SYSTEM.md](UI-DESIGN-SYSTEM.md)
 - **Terminology:** User-facing label is "Flows" (not "Trees"). Procedural flows are called "Projects" in the UI. Maintenance flows are called "Maintenance" in the UI. `tree_type` column values unchanged in DB.
-- **Rebrand guide:** [REBRAND-IMPLEMENTATION-GUIDE.md](REBRAND-IMPLEMENTATION-GUIDE.md)
+- **Rebrand guide:** [REBRAND-IMPLEMENTATION-GUIDE.md](docs/archive/REBRAND-IMPLEMENTATION-GUIDE.md)
 
 **Component styling rules:**