.git_commit_msg_staged.txt

feat: Implement Meta-Cognitive System with self-improving capabilities

This commit introduces a comprehensive meta-cognitive architecture that enables
the agent to monitor, analyze, and optimize its own cognitive processes.

Core Components:
- Meta Controller: Central orchestrator for meta-cognitive operations
  - Monitor: Real-time performance tracking and anomaly detection
  - Learner: Pattern learning from execution history
  - Reflector: Deep reflection on cognitive decisions
  - Optimizer: Adaptive parameter tuning and strategy optimization

Backend Enhancements:
- Enhanced graph_rag with improved retrieval algorithms
- Extended semantic memory for better knowledge persistence
- Upgraded rate limiter with adaptive throttling
- Updated cognitive router to support meta-cognitive routing

Testing:
- Added fusion_integration_test.rs for comprehensive integration tests
- Added integration_meta_cognitive_test.rs for meta-cognitive validation
- Added meta_simple_test.rs for basic functionality tests

Breaking Changes:
- Removed deprecated openclaw_executor.rs.new

Total: +3399 lines, -471 lines across 16 files