Claude 82c8c1c2d2 Add related_entities to Layer 1 for relationship tracking ...

Extended Memory struct and database schema to support entity
tracking, which is foundation for Layer 4 relationship system.

Changes to Memory struct (src/core/memory.rs):
- Added related_entities: Option<Vec<String>> field
- Added new_with_entities() constructor for Layer 4
- Added set_related_entities() setter method
- Added has_entity() helper method to check entity membership
- All fields are optional for backward compatibility

Changes to database (src/core/store.rs):
- Added related_entities column to memories table
- Automatic migration for existing databases
- Store as JSON array in TEXT column
- Updated all CRUD operations (create, get, update, list, search)
- Parse JSON to Vec<String> when reading from database

Design rationale:
- "Who with" is fundamental attribute of memory
- Enables efficient querying by entity
- Foundation for Layer 4 relationship inference
- Optional field maintains backward compatibility
- Simple JSON serialization for flexibility

Usage:
Memory::new_with_entities(
  content,
  ai_interpretation,
  priority_score,
  Some(vec!["alice".to_string(), "bob".to_string()])
)

2025-11-06 07:39:59 +00:00

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