release-readme: the root README written last, honestly — crate family table with per-engine honest postures (ADR-016 compile-time identity, deployment.md as the boundary), mem-carried usage sketch compile-checked and executed against the real API, contract-suite pointer (three engines, one pinned contract), license note; LICENSE-MIT + LICENSE-APACHE per the family pattern (substrate notice untouched per ADR-018); CHANGELOG seeded with the 0.1.0 contract-v1 entry; per-crate readme wiring decided + landed (pointer-style per-crate readmes, readme fields wired on the four published crates); honesty trace list in task Notes; task -> completed

alkstore-postgres/README.md

@@ -0,0 +1,25 @@
+# alkstore-postgres
+
+The Postgres engine of the [alkstore](https://git.alk.dev/alkdev/alkstore/blob/main/README.md)
+family: the core contract implemented on tokio-postgres +
+deadpool-postgres, natively async (no blocking bridge, no
+`spawn_blocking` seam), with a hand-rolled LISTEN forwarder.
+
+```rust
+let store = alkstore_postgres::open(&dsn, alkstore_postgres::PgOpts::default()).await?;
+```
+
+**Engine posture — multi-host native.** Connections are per-process
+state; nothing assumes a shared host. Connection budget: `max_size`
+pooled connections **+ 1 non-pooled listener connection per LISTEN-ing
+process** (pooled connections cannot carry LISTEN) — size the server
+for the sum. v1 TLS is effectively unavailable: the engine hardwires
+`NoTls` on every connection path, so network confidentiality must come
+from the deployment topology. Queue/stream/lock/schedule tables live
+in one engine-owned PostgreSQL schema (default `alkstore`,
+per-engine option).
+
+See the [family README](https://git.alk.dev/alkdev/alkstore/blob/main/README.md)
+for the interface and the deployment matrix, and the
+[Postgres engine spec](https://git.alk.dev/alkdev/alkstore/blob/main/docs/architecture/engine-postgres.md)
+for the driver's details.