The fused pre-indexer could read a stale or uncommitted raw-key ring row and
pass its int64 tail to RoPE as a position (illegal address). The writer now
tags each row with logical_position + 1; the reader checks the tag of every
source row and, on a mismatch, masks the pooled load, the RoPE-tail read and
the compressed-slot store. New guard site 11 (always fatal under warn). The
KV pool size is unchanged.
Co-Authored-By: Hinata <hinata@idihore.id>
Signed-off-by: MOVZX <movzx@yahoo.com>