Reuse the validated string inventory's numeric address order for O(log n + matches) exact reads, preserving every encoding at the selected address without a second lookup index. Keep streaming validation, session cache lifetime, full listings, provenance and caller choices.
Validation: complete latest-head CI passed. Original real Kuna 1.833 Linux correctness and warm-lookup measurements remain pinned to their recorded feature revisions in the PR. The latest local 300 ms export-deadline observation and unchanged 31-test provider recheck are explicitly documented there; no assertion or timeout was weakened.
Refs #4695.