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Author SHA1 Message Date
6b295e9b17 docs: Add complete IDataTree system architecture documentation
**New Documentation:**
- docs/architecture/data-tree-system.md (comprehensive system guide)
- docs/README.md (quick start and navigation)

**Documentation Coverage:**
- Three data domains (config/, data/, runtime/)
- Architecture layers (Interfaces, Implementations, Integration, Distribution)
- Data flow patterns (config reads, save requests, hot-reload)
- Advanced features (pattern matching, queries, hashing)
- Implementation guidelines for module developers, engine implementers, system architects
- File structure examples and future enhancements

**Updated Interfaces:**
- IModule.h: Updated comments to reflect IDataNode usage and IIO save pattern
- Clarified data flow: config read-only, saves via IIO publish

**Key Concepts Documented:**
- Config synchronization from Coordinator to Engines
- Data isolation per Engine (local saves)
- Runtime temporary state (never saved)
- IIO-based save pattern (modules publish, Engine persists)
- Backend-agnostic design (pluggable implementations)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-28 16:18:15 +08:00