Add shared artifact-tag normalization/validation and apply it to capture, drift, and prune scripts for --tag/--report-tag/--baseline-tag paths. Architecture diagrams reviewed; no flow changes required.
Enforce non-negative integer padding_ms/--window-padding-ms across gateway window helper and live baseline capture CLI, with regression coverage for invalid values. Architecture/protocol diagrams reviewed; no updates were needed for this validation-only change.
Require non-negative integer maxSessions/maxChannels/maxSkipReasons in summary core and both phase0 summary/capture CLIs to prevent silent flooring of fractional values. Architecture/protocol diagrams reviewed; no flow or API shape changes required.
William Valentin