feat(iace): benchmark distance panel (Thema 1)

Surface result.distances in the benchmark module: a DistanceComparison
panel showing agreement %, covered values (green), GT-only gaps (amber)
and engine-only extras — mirroring the RiskComparison panel.

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

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

@@ -7,6 +7,7 @@ import { GTImportForm } from './_components/GTImportForm'
 import { HazardComparisonTable } from './_components/HazardComparisonTable'
 import { CategoryBreakdown } from './_components/CategoryBreakdown'
 import { RiskComparison } from './_components/RiskComparison'
+import { DistanceComparison } from './_components/DistanceComparison'
 
 export default function BenchmarkPage() {
   const { projectId } = useParams<{ projectId: string }>()
@@ -106,6 +107,9 @@ export default function BenchmarkPage() {
           {/* Risk-number comparison (tool vs professional) with traffic lights */}
           <RiskComparison pairs={result.risk_comparison} agreement={result.risk_agreement} />
 
+          {/* Distance/speed dimension comparison */}
+          <DistanceComparison data={result.distances} />
+
           {/* Hazard Comparison Table */}
           <HazardComparisonTable
             matched={result.matched_pairs || []}