//! Integration tests: every module exercises public API against real backing
//! stores (temp dirs, real `SQLite`) — no mocks. Per-harness modules cover
//! store round-trip fidelity, codec fixpoints through Common, and discovery;
//! the rest cover cross-harness conversion, adversarial path handling,
//! search, and deletion. Property-based codec invariants live in
//! `properties`. Tests that pin a specific shipped bug belong in
//! `tests/regression/`, not here — see `tests/README.md`.