v1.3.0 Add BTree.SeekInto for allocation-free repeated point seeks (fills a caller-provided cursor instead of allocating one). Performance: BTree Get/Set/Delete/Seek are now 0 allocs/op — openPage no longer boxes the page offset through an interface — and r4/r8/w4/w8 encode with encoding/binary. No breaking API changes. A rebuilt, per-call, path-asserted benchmark suite over eight backends (Pager/PagerWAL added) ships with a committed benchmarks.txt; see AUDIT.md.