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/_components/RiskComparison.tsx

@@ -0,0 +1,100 @@
+'use client'
+
+import type { RiskComparisonPair, RiskAgreement } from '../_hooks/useBenchmark'
+
+type Ampel = 'green' | 'yellow' | 'red'
+
+// EN-62061-style risk number R = S * (F + W + P) → traffic light (like the Excel).
+function ampelEN(r: number): Ampel {
+  if (r >= 30) return 'red'
+  if (r >= 18) return 'yellow'
+  return 'green'
+}
+
+function ampelBand(band: string): Ampel {
+  if (band === 'sehr hoch' || band === 'hoch') return 'red'
+  if (band === 'wesentlich' || band === 'moeglich') return 'yellow'
+  return 'green'
+}
+
+const cellColor: Record<Ampel, string> = {
+  red: 'bg-red-100 text-red-700 dark:bg-red-900/40 dark:text-red-300',
+  yellow: 'bg-yellow-100 text-yellow-700 dark:bg-yellow-900/40 dark:text-yellow-300',
+  green: 'bg-green-100 text-green-700 dark:bg-green-900/40 dark:text-green-300',
+}
+
+function pctColor(p: number): Ampel {
+  if (p >= 80) return 'green'
+  if (p >= 50) return 'yellow'
+  return 'red'
+}
+
+function Stat({ label, pct }: { label: string; pct: number }) {
+  const c = pctColor(pct)
+  return (
+    <div className={`rounded-lg border-2 p-3 text-center ${c === 'green' ? 'border-green-200 dark:border-green-800' : c === 'yellow' ? 'border-yellow-200 dark:border-yellow-800' : 'border-red-200 dark:border-red-800'}`}>
+      <div className={`text-xl font-bold ${c === 'green' ? 'text-green-600' : c === 'yellow' ? 'text-yellow-600' : 'text-red-600'}`}>{Math.round(pct)}%</div>
+      <div className="text-[10px] text-gray-500 mt-0.5">{label}</div>
+    </div>
+  )
+}
+
+export function RiskComparison({ pairs, agreement }: { pairs?: RiskComparisonPair[]; agreement?: RiskAgreement }) {
+  if (!pairs || pairs.length === 0) return null
+
+  return (
+    <div className="bg-white dark:bg-gray-800 rounded-lg border border-gray-200 dark:border-gray-700 p-4 space-y-4">
+      <div>
+        <h3 className="text-sm font-semibold text-gray-700 dark:text-gray-300">Risikozahlen-Vergleich (Fachmann vs. Tool)</h3>
+        <p className="text-xs text-gray-500 mt-0.5">
+          R = S × (F + W + P), Ampel wie in der Excel. Fine-Kinney (P×E×C) als zweite, US-anerkannte Bewertung.
+        </p>
+      </div>
+
+      {agreement && agreement.n > 0 && (
+        <div className="grid grid-cols-2 md:grid-cols-5 gap-3">
+          <Stat label="Schwere S ±1" pct={agreement.severity_within1} />
+          <Stat label="Haeufigkeit F ±1" pct={agreement.frequency_within1} />
+          <Stat label="Wahrsch. W ±1" pct={agreement.probability_within1} />
+          <Stat label="Vermeidb. P ±1" pct={agreement.avoidance_within1} />
+          <Stat label="Ranking (FK)" pct={agreement.rank_concordance} />
+        </div>
+      )}
+
+      <div className="overflow-x-auto">
+        <table className="w-full text-xs">
+          <thead>
+            <tr className="text-gray-500 border-b border-gray-200 dark:border-gray-700">
+              <th className="text-left py-1.5 px-2">Gefaehrdung</th>
+              <th className="px-1 text-center" colSpan={5}>Fachmann · S F W P <strong>R</strong></th>
+              <th className="px-1 text-center border-l border-gray-200 dark:border-gray-700" colSpan={5}>Tool · S F W P <strong>R</strong> / FK</th>
+            </tr>
+          </thead>
+          <tbody>
+            {pairs.map((p, i) => {
+              const engR = p.eng_severity * (p.eng_frequency + p.eng_probability + p.eng_avoidance)
+              return (
+                <tr key={i} className="border-b border-gray-100 dark:border-gray-700/50">
+                  <td className="py-1 px-2 text-gray-700 dark:text-gray-300">{p.hazard_name || '—'}</td>
+                  <td className="text-center text-gray-500">{p.gt_severity}</td>
+                  <td className="text-center text-gray-500">{p.gt_frequency}</td>
+                  <td className="text-center text-gray-500">{p.gt_probability}</td>
+                  <td className="text-center text-gray-500">{p.gt_avoidance}</td>
+                  <td className={`text-center font-bold rounded ${cellColor[ampelEN(p.gt_risk)]}`}>{p.gt_risk}</td>
+                  <td className="text-center text-gray-500 border-l border-gray-200 dark:border-gray-700">{p.eng_severity}</td>
+                  <td className="text-center text-gray-500">{p.eng_frequency}</td>
+                  <td className="text-center text-gray-500">{p.eng_probability}</td>
+                  <td className="text-center text-gray-500">{p.eng_avoidance}</td>
+                  <td className="text-center">
+                    <span className={`inline-block font-bold rounded px-1.5 ${cellColor[ampelEN(engR)]}`}>{engR}</span>
+                    <span className={`ml-1 inline-block rounded px-1 ${cellColor[ampelBand(p.fk_band)]}`} title={`Fine-Kinney ${p.fk_band}`}>FK&nbsp;{Math.round(p.fk_score)}</span>
+                  </td>
+                </tr>
+              )
+            })}
+          </tbody>
+        </table>
+      </div>
+    </div>
+  )
+}

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 {

admin-compliance/app/sdk/iace/[projectId]/benchmark/page.tsx

@@ -6,6 +6,7 @@ import { useBenchmark } from './_hooks/useBenchmark'
 import { GTImportForm } from './_components/GTImportForm'
 import { HazardComparisonTable } from './_components/HazardComparisonTable'
 import { CategoryBreakdown } from './_components/CategoryBreakdown'
+import { RiskComparison } from './_components/RiskComparison'
 
 export default function BenchmarkPage() {
   const { projectId } = useParams<{ projectId: string }>()
@@ -102,6 +103,9 @@ export default function BenchmarkPage() {
           {/* Category Breakdown */}
           <CategoryBreakdown breakdown={result.category_breakdown || []} />
 
+          {/* Risk-number comparison (tool vs professional) with traffic lights */}
+          <RiskComparison pairs={result.risk_comparison} agreement={result.risk_agreement} />
+
           {/* Hazard Comparison Table */}
           <HazardComparisonTable
             matched={result.matched_pairs || []}