v2.0.6 - Simple chronology check for old sessions

Added

• Simple chronology check for old sessions — Prevents data loss when processing backlog
  • IF session_date < file_last_modified → append context
  • ELSE → normal update
  • Old sessions append missing context (don't replace existing)
  • New sessions update normally (can replace/restructure)
  • Works for: old backlog, multi-source overlap (Claude Code + OpenClaw), re-processing

Changed

• Simplified anti-conflict logic — Removed complex mode selection, deduplication checks
  • Clear IF/ELSE rule based on chronology
  • "When in doubt: append" principle
  • No content checking, no duplicate detection — just simple chronology
  • Clearer examples (old session appending after newer session processed)

See CHANGELOG.md for full details.