release-crate-docs: crate docs final pass — doc gate green with -D warnings posture recorded in AGENTS.md, warn(missing_docs) adopted on the four published crates (audit probe 0; Error enum+fields, sqlite substrate fuzz-surface fns filled), accuracy pass fixed core drifts (trim_to wake nuance, ADR-023 §2 domain rules + shared paragraph, QueueOpts gloss, MemStore::new exception) and engine postures (eleven-vs-ten tx-method count, spawn_blocking rationale via sync substrate, one-host cross-process honesty element), spec-side aligned (pg locks family + row-backed wording, mem clock-accessor home), two boundary-wording dispositions recorded for release-contract-window-close (try_recv arms, 8000-byte <= reading), queue round-trip doctest landed in alkstore-mem crate docs; task -> completed with Notes + Summary

alkstore-postgres/src/lib.rs

@@ -34,6 +34,11 @@
 //! module's bootstrap the DDL ground. The verification backlog's pg
 //! column (the ADR-022 contract suite rows this engine owns) runs in
 //! this crate's `contract_suite` test target.
+//!
+//! Every public item carries doc text; the missing-docs lint is part
+//! of the standing gates.
+
+#![warn(missing_docs)]
 
 mod forwarder;
 mod lock;

alkstore-postgres/src/opts.rs

@@ -35,7 +35,8 @@ pub(crate) const LISTENER_APPLICATION_NAME: &str = "alkstore-pg-listener";
 /// are `open`'s first argument (the tokio-postgres
 /// [`Config`](::tokio_postgres::Config)-parseable form, ADR-008 §6's
 /// `open(url, PgOpts)` pin); the engine never invents defaults for
-/// them. `open` fails with [`Error::Database`] if the config is
+/// them. `open` fails with
+/// [`Error::Database`](alkstore::Error::Database) if the config is
 /// unparseable or the server unreachable. TLS: the engine hardwires
 /// `NoTls` on every connection path regardless of the config's
 /// sslmode — v1 TLS is a post-v1 deployment concern
@@ -54,7 +55,8 @@ pub struct PgOpts {
     /// Default [`DEFAULT_MAX_SIZE`] = 8 (the deployment matrix's
     /// budget line; the listener adds +1 per LISTEN-ing process
     /// *outside* the pool — sizing rule `max_size + 1`). A value of
-    /// `0` fails [`open`](crate::open) with [`Error::Database`]
+    /// `0` fails [`open`](crate::open) with
+    /// [`Error::Database`](alkstore::Error::Database)
     /// immediately (validated at entry — no round trip; deadpool
     /// cannot grant checkouts from an empty pool).
     pub max_size: usize,

alkstore-postgres/src/tx.rs

@@ -1,6 +1,6 @@
 //! The transactional seam's pg arm (ADR-007) — `begin_tx`, the
-//! [`PgTxHandle`] (the pooled-object handle), and all eleven `*_tx`
-//! methods (`pg-engine-seam-tx`).
+//! [`PgTxHandle`] (the pooled-object handle), and all eleven
+//! transaction-handle methods (ten `*_tx` ops plus `commit`). (`pg-engine-seam-tx`).
 //!
 //! # No bridge, no `spawn_blocking`
 //!