c3c9c2174a
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lakehouse/auditor 9 blocking issues: cloud: claim not backed — "Verified live (current synthetic data):"
Decision B from reports/staffing/synthetic-data-gap-report.md §7 (plus C: client_workerskjkk.parquet typo file removed from data/datasets/ — was never tracked, no git effect). PII enforcement was UNVERIFIED in workers_500k_v8 (the corpus staffing_inference mode embeds chunks from). Verified 2026-04-27 by inspecting data/vectors/meta/workers_500k_v8.json — `source: "workers_500k"` confirms v8 was built directly from the raw table, so the LLM has been seeing names / emails / phones / resume_text for every staffing query. This commit closes the boundary at the catalog metadata layer: candidates_safe (overhauled — was failing SQL invalid 434×/day on a nonexistent `vertical` column reference, copy-pasted from job_orders): drops last_name, email, phone, hourly_rate_usd candidate_id masked (keep first 3, last 2) row_filter: status != 'blocked' workers_safe (NEW): drops name, email, phone, zip, communications, resume_text keeps role, city, state, skills, certifications, archetype, scores resume_text + communications carry verbatim PII (full names) and there is no in-view text scrubber, so they are dropped wholesale. Skills + certifications + scores carry the matching signal for staffing inference. jobs_safe (NEW): drops description (often quotes client names verbatim) client_id masked (keep first 3, last 2) bill_rate / pay_rate kept — commercial info, not PII per staffing PRD scripts/staffing/build_workers_v9.sh (NEW): POSTs /vectors/index to rebuild workers_500k_v9 from `workers_safe` rather than the raw table. Embedded text is constructed from the view projection so PII never enters the corpus by construction. 30+ minute background job — not run inline. After it completes, flip config/modes.toml `staffing_inference` matrix_corpus from workers_500k_v8 to workers_500k_v9 and restart gateway. Distillation v1.0.0 substrate untouched. audit-full passed clean (16/16 required) before this commit; will re-verify after.