# kuatia-storage

Storage abstraction for the kuatia ledger.

Defines the `Store` trait (composed of four sub-traits), provides an
in-memory implementation for tests, and exports a `store_tests!` conformance
macro that any backend can use to validate its implementation.

## Sub-traits

| Trait | Purpose |
|-------|---------|
| `AccountStore` | Account CRUD and versioning |
| `PostingStore` | Posting reads, reserve/release/finalize lifecycle |
| `TransferStore` | Transfer persistence and queries |
| `SagaStore` | Saga state for crash recovery |

`Store` is a blanket trait — any type implementing all four sub-traits is a `Store`.

## Conformance testing

```rust
use kuatia_storage::mem_store::InMemoryStore;

async fn new_store() -> InMemoryStore { InMemoryStore::new() }
kuatia_storage::store_tests!(new_store);
```

This generates 22 tests covering every Store method.