ACE memory system for OpenDev.
This crate implements the Agentic Context Engine (ACE) memory system:
- Playbook: Structured store for accumulated strategies and insights
- Delta: Batch mutation operations on the playbook
- Embeddings: Embedding cache and cosine similarity for semantic search
- Selector: Intelligent bullet selection for LLM context
- Reflector: Post-turn reflection to extract learnable patterns
- Roles: ACE role data models (Reflector, Curator outputs)