multi_coord_stress: thread role through matrix retrieve + playbook record

Real wire-up gap discovered post-scrum: Demand.Role was already
extracted at every call site in multi_coord_stress (44 occurrences,
both contract-driven and LLM-parsed inbox-triggered paths), but
neither matrixSearch nor playbookRecord accepted role in their
signatures. Cross-role gate (real_001..real_004 work) was bypassed
for the entire multi-coord harness — recordings and queries went
through with empty role, gate fell back to lenient behavior.

Fix:
- matrixSearchReq gains query_role field
- matrixSearch signature: (..., query, role string, ...)
- tracedSearch wrapper gains role param + emits it in span input
  metadata for Langfuse visibility
- playbookRecord signature: (..., query, role, ...) — body emits
  role only when non-empty (preserves backward compat at API)
- 14 call sites updated:
    contract-driven Demand loops → d.Role
    LLM-parsed inbox path → parsed.Role (qwen2.5 already extracts it)
    swap path (warehouseDemand) → warehouseDemand.Role
    reissue path → ev.Role (captured at original event time)
    fresh-verify (resume snippet, no role concept) → ""

Build clean, vet clean, all tests pass. Cross-role gate now fires
end-to-end across the multi-coord harness — matches the playbook_lift
harness's coverage from the original real_001 fix.

This closes the symmetric gap to scripts/playbook_lift's existing
wire-through. Both production-shape harnesses now exercise the role
gate; future reality tests automatically inherit the protection.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

STATE_OF_PLAY.md

@@ -267,6 +267,7 @@ The list is intentionally short. Items move to closed when the work demands them
 | (fix)     | LLM-based role extractor (real_004): `roleExtractor` struct with regex-first → qwen2.5 format=json fallback → per-process cache. Opt-in via `-llm-role-extract` flag + `LLM_ROLE_EXTRACT=1` env. Off-by-default preserves real_003b shipping config. 8 new tests including `TestRoleExtractor_ClosesCrossRoleShorthandBleed` — the load-bearing witness pairing with the matrix-side `TestInjectPlaybookMisses_RoleGateRejectsCrossRole` to prove the extraction-layer + gate-layer compose correctly on the exact real_003 failure mode. Findings: `reports/reality-tests/real_004_findings.md`. |
 | (scrum)   | 3-lineage scrum review on `7f2f112..0331288` (Opus + Kimi + Qwen3-coder via `scripts/scrum_review.sh`). Convergent finding (3/3): `roleNormalize` plural-stripper mangled non-plural-s tokens (Sales → Sale, Logistics → Logistic). **Fixed**: `nonPluralSWords` allowlist + `-ss` ending check + `strings.ToLower`/`TrimSpace` cleanup. New tests `TestRoleNormalize_NonPluralS` + `TestRoleEqual_NonPluralS` lock the edge cases. Kimi 2 BLOCKs were false positives (model-truncation artifacts per `feedback_cross_lineage_review.md`). Disposition: `reports/scrum/_evidence/2026-04-30/verdicts/role_gate_v1_disposition.md` (local). |
 | (probe)   | Negation reality test real_005: 5 explicit-negation queries ("NOT in Detroit", "excluding Cornerstone roster", etc.). Confirmed substrate has **zero negation handling** — cosine treats "NOT X" as "X" + noise. Judge IS the safety net (Q1/Q3/Q4 rated all top-10 results 1-2/5 — operator-visible honesty signal). **No code change needed**: production UI should handle exclusion via `ExcludeIDs` (already supported, added in multi-coord stress 200-worker swap), not via NL-negation. Findings: `reports/reality-tests/real_005_findings.md`. |
+| (wire-up) | Multi-coord stress role wire-through: `Demand.Role` was already extracted at every call site (44 occurrences) but never threaded into matrix retrieve or playbook record. Cross-role gate was bypassed for the entire multi-coord harness. **Fixed** by extending `tracedSearch`, `matrixSearch`, and `playbookRecord` signatures with `role string` and updating all 14 call sites — passing `d.Role` (demand loops), `parsed.Role` (LLM-parsed inbox path), `warehouseDemand.Role` (swap path), `ev.Role` (reissue path), `""` (fresh-verify resume snippet — no clean role). Build + vet + tests green; multi-coord stress now honors role gate end-to-end. |
 
 Plus on Rust side (`8de94eb`, `3d06868`): qwen2.5 → qwen3.5:latest backport in active defaults; distillation acceptance reports regenerated (run_hash refresh, reproducibility property still holds).