v4.3.0

Added

• (fs) MemFs — in-memory Fs implementation for testing and in-memory trees (#211)

Fixed

• (table) validate block type on cache-hit path (#203)
• (table) two-level index scan stops prematurely on empty child partitions (#202)

Performance

• (table) add infallible OwnedIndexBlockIter constructor for pre-validated blocks (#206)

Refactored

• (fs) migrate Tree::open recovery path to Fs trait (#212)
• (table) make index block bound-cursor helpers fallible (#205)
• (table) make all meta/trailer reads fallible for truncated blocks (#204)
• (table) make block decoder trailer validation fallible (#199)