- Refactored `Store` to use a trait-based backend with type-specific tables, replacing the previous enum approach.
- Implemented `Sqlite` and `Memory` backends with proper table management and type-aware operations.
- Added serialization/deserialization handling in `Store` using `serde_json`.
- Implemented `ToString` for `Ty` and improved equality comparisons using string representation.
- Fixed `Distribution::sample` in `varo` to correctly handle 0, 1, and 2+ moments cases.
- Updated store integration tests to verify type-specific storage operations including write, read, and deletion.
- Commented out unfinished `EntityContents` and related structs pending future implementation.
Markus Scully
87957bfbf8
