feat(iace): benchmark risk comparison (traffic lights) + misuse pattern + 1:n matcher

#1 Risk-number comparison in the benchmark: ComputeRiskComparison derives the
tool's S/F/W/P + Fine-Kinney per matched hazard and compares to the GT values;
exposed on the benchmark response and rendered in a new RiskComparison table
with GREEN/YELLOW/RED traffic lights on the risk number R (like the Excel),
plus per-axis within-1 agreement cards.

#2 Generic misuse pattern HP2103 "Personenbefoerderung auf Hebezeug" — gated to
lift-family machine types, fires for ANY lifting device (not machine-specific).

#3 Benchmark matcher is now 1:n — one broad engine hazard may cover several
fine-grained GT sub-scenarios (foot/hand/leg crush), so coverage reflects real
risk coverage rather than 1:1 wording matches.

Validated on BOTH ground truths (robot cell + lift): leakage 0, ghosts 0,
coverage held.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

admin-compliance/app/sdk/iace/[projectId]/benchmark/_hooks/useBenchmark.ts

@@ -48,6 +48,20 @@ export interface CategoryScore {
   category: string; gt_count: number; match_count: number; coverage: number
 }
 
+export interface RiskComparisonPair {
+  hazard_name: string
+  gt_severity: number; gt_frequency: number; gt_probability: number; gt_avoidance: number; gt_risk: number
+  eng_severity: number; eng_frequency: number; eng_probability: number; eng_avoidance: number
+  fk_score: number; fk_band: string
+}
+
+export interface RiskAgreement {
+  n: number
+  severity_within1: number; frequency_within1: number
+  probability_within1: number; avoidance_within1: number
+  rank_concordance: number
+}
+
 export interface BenchmarkResult {
   coverage_score: number
   measure_coverage: number
@@ -58,6 +72,8 @@ export interface BenchmarkResult {
   extra_in_engine: HazardSummary[]
   category_breakdown: CategoryScore[]
   risk_rank_pairs: { gt_rank: number; engine_rank: number; hazard_name: string; gt_risk_score: number }[]
+  risk_comparison?: RiskComparisonPair[]
+  risk_agreement?: RiskAgreement
 }
 
 interface UseBenchmarkReturn {