KPI report defects surfaced by coaching run-1: v_ack_heavy_7d header/threshold mismatch + v_cli_drift_7d lifetime column

Coaching dry-run 1 (2026-07-12) flagged: (1) v_ack_heavy_7d section header claims >=50% ack gate but lists agents at 27/17/3/1% — view threshold or label wrong; analyst must not coach off it until reconciled. (2) v_cli_drift_7d 7d-window undercounts recurrence (repeat CDA-DRIFT offender shows as 1) — a lifetime-count column would surface repeat patterns. v_ack_heavy_7d/v_cli_drift_7d are hub views (pm-llmmsgsrv lane); section headers are in llmmsg-kpi-report.sh (sh.git/bin lane). Logged in /opt/llmmsg-srv/coaching/kpi-coach-rules.md KNOWN REPORT DEFECTS.