Changelog of @hackage/kioku-migrations 0.2.0.0

Changelog

Raised keiro-migrations to ^>=0.4.0.1. Keiro's component gains two migrations, which the composed kiokuMigrationPlan now carries: 0019-keiro-snapshots-state-shape-hash.sql, which adds a state_shape_hash column to keiro.keiro_snapshots, and 0020-keiro-workflow-children-failure-reason.sql, which adds a nullable failure_reason column to Keiro's workflow-children table. Both are additive ALTER TABLE ... ADD COLUMN statements on Keiro-owned tables that Kioku neither reads nor writes. The plan's forward-migration total moves from 36 to 38.

Kioku.Migrations.History.Codd and the codd-upgrade/ SQL fixups are deprecated. They are a one-time bridge for databases whose schema evolution predates the pg-migrate cutover; a database created by kioku-migrate up has never needed them. Removal is gated on the last codd-era downstream database crossing over — as of this release that is Shikigami, tracked by its docs/plans/38-migrate-shikigami-database-evolution-from-codd-to-pg-migrate.md. If you still have a codd.sql_migrations table, cross over now: the bridge will be deleted, together with everything listed in codd-upgrade/README.md, in a future release.

Added the initial ten-migration Kioku schema for memory and session event streams, read models, embeddings, distillation artifacts, timers, delegation, and durable awaiting state.
Added schema hardening and repair migrations for supersession chains, session indexes, scope constraints, embedding columns, and collision-safe distillation identities.
Added a checked migration manifest and a test that fails when compiled migration order falls out of sync with the files on disk.
Added Kioku.Migrations.History.Codd, which lets downstream databases import the pinned 30-migration Kiroku/Keiro/Kioku history into pg-migrate without replaying historical DDL.
Shipped the reviewed Kiroku/Keiro ledger realignment and Keiro schema-relocation SQL used by the downstream cutover runbook under codd-upgrade/.
Added pg-migrate-backed ephemeral database test support while preserving the existing withKiokuMigratedDatabase and withBareDatabase signatures.

Made read-model registry migration logic locate keiro_read_models across supported cohort layouts.

Upgraded the framework dependency baseline to Keiki 0.2, Keiro 0.3, Kiroku Store 0.3, PGMQ 0.4, and pg-migrate 1.1. The project now resolves the released packages from Hackage and no longer carries Git source overrides or migration-era allow-newer exceptions.
Adapted Kioku's inline read models to Keiro 0.3's explicit StrongScope contract. They retain Eventual consistency and declare EntireLog as the otherwise-unused strong-read scope.
Added Kiroku 0.3's KirokuStoreResource to the application effect stack and write API constraints so Keiro's transactional command runners preserve configured event-enrichment hooks. AppEnv.store was replaced by AppEnv.connectionSettings; runAppIO now acquires the resource and interprets Store through runStoreResource.
Registered every Kioku read model during application startup, as required by Keiro 0.3's explicit read-model lifecycle.
Replaced the Codd-backed migration runner functions with the native pg-migrate kiokuMigrations component and composed kiokuMigrationPlan. This is a breaking API change for consumers of the removed runKiokuMigrations, runKiokuMigrationsNoCheck, and kiokuOwnMigrations functions.
Renamed Kioku's ten migration files to stable NNNN-slug.sql identities and made their explicit manifest the source of apply order.
Updated the composed migration plan to Keiro migrations 0.3, including Keiro migration 0018; the current plan contains 36 migrations (Kiroku 8, Keiro 18, Kioku 10).