[Feature] memory system layer stateful

[jj-devhub]

1. [Feature] Implement memory types and statistics for GraphBit Python bindings
2. [Feature] Add in-memory storage implementation with capacity management and eviction policy
3. [Feature] Implement LLM-based memory extraction with configurable settings
4. [Feature] Add FactualMemory implementation for long-term structured knowledge storage
5. [Feature] Add semantic memory implementation for pattern-based knowledge storage
6. [Feature] Implement episodic memory for conversation history tracking
7. [Feature] Implement working memory for short-term session-based context
8. [Feature] Implement memory decay and filtering mechanisms
9. [Feature] Add memory retrieval engine with semantic and keyword search capabilities
10. [Feature] Create memory module for GraphBit Python bindings
11. [Feature] Define core memory types and structures for GraphBit memory system
12. [Feature] Add memory tools module for agent integration with recall and remember functionalities
13. [Feature] Implement central memory manager with configuration and memory handling capabilities
14. [Feature] Add comprehensive memory system module for stateful AI agents
15. [Feature] Add optional memory manager to WorkflowContext for stateful agents
16. [Feature] Add memory module to core library for enhanced agent capabilities
17. [Feature] Add memory error type to GraphBitError for enhanced error handling
18. Refactor metadata handling in WorkflowExecutor for improved readability and consistency
19. [Feature] Add memory system classes to Python bindings for enhanced functionality
20. [Feature] Implement MemoryConfig class for memory system configuration in Python bindings
21. [Feature] Add MemoryQuery class for memory retrieval in Python bindings
22. Refactor import statements for consistency in memory types module
23. [Feature] Implement MemoryManager class for managing stateful agent memory in Python bindings
24. Fix missing newline at end of file in Azure OpenAI module tests
25. Refactor get_node_response_metadata method signature for improved readability
26. Refactor LlmClient request execution for improved readability
27. Refactor PyLlmUsage and PyLlmToolCall methods for improved readability
28. Add documentation for Memory System in Stateful AI Agents