chore: organize temporary research artifacts into archive

- Create agent-evolution/archive/ with scripts/, reports/, data/
- Move 11 Python migration/diagnostic scripts
- Move 7 intermediate report files (json, md, txt)
- Move test data and old dashboard builds
- Add archive/README.md with full index of contents
- Update .gitignore to exclude archive/scripts, reports, data
- Keep archive/README.md tracked for documentation

.gitignore

@@ -19,6 +19,11 @@ tests/reports/
 .kilo/EVOLUTION_LOG.md
 .kilo/WORKFLOW_AUDIT.md
 
+# Temporary research artifacts (one-off scripts, diagnostic outputs)
+agent-evolution/archive/scripts/
+agent-evolution/archive/reports/
+agent-evolution/archive/data/
+
 # Architect generated maps (can be large, auto-indexed)
 # Note: .architect/ md and json files ARE tracked for team orientation
 # Only maps/ with file graphs can be very large