lakekit 0.1.0

Added

• lakekit-core: loko's Store, Clock, and Random services with their test and native implementations
  (TokioClock with feature tokio, OsRandom with feature getrandom); Services, the three borrowed
  together for commits; one Error type, which a store's error converts into.
• lakekit feature object-store: a Store over an object_store client (S3, GCS, Azure, local files, memory),
  from a client or a URL (loko-object-store).
• lakekit-iceberg: Iceberg table metadata, schemas, partition specs, manifest lists, and manifests read for format
  versions 1 to 3, including delete files and deletion vector references; values in Iceberg's single-value encoding.
• lakekit-iceberg feature write: format v2 manifests, manifest lists, and metadata updates, and commits to
  file-system tables with options (CommitOptions) and hooks (CommitHooks). A writer whose clock is behind the
  table's last update dates its commit at that update, so the snapshot log stays in order.
• lakekit-iceberg features arrow (schemas as Arrow schemas with field ids) and parquet-stats (a data file's
  Iceberg statistics from its Parquet footer; a bound or null count only when every row group gives it exactly, and
  decimals as Iceberg's shortest big-endian bytes).
• lakekit: re-exports the format crates behind a feature each.

Changed

• The project is named lakekit, and its crates lakekit-core, lakekit-iceberg, and lakekit; it was lakebed
  (lakebed-core, …) until 2026-10-21. Nothing was published under the old names; GitHub redirects the old
  repository URL.
• The I/O boundary is three traits, Store (objects), Clock (the time and a timer), and Random (random numbers),
  instead of one Host; MemoryHost is MemoryServices. UUIDs come from the uuid crate.
• The three traits are loko's, and Clock::sleep takes a Duration. The
  object_store adapter is loko-object-store, re-exported as lakekit::object_store; lakekit-object-store is
  gone (it was never published).

The Iceberg code started as Timelake's shared writer (timelake-format), made general.