feat(iace): block-aware risk table + benchmark quality badges

Risk Assessment tab now shows block grouping:
- BlockAwareRiskTable: Parents bold/purple, children indented
- Collapse/expand blocks, "Abgedeckt" badge for covered children
- Ungroup button to remove child from block
- Info bar showing block count and covered children

Benchmark tab improvements:
- Green/Yellow/Red quality badges (Exakt/Aehnlich/Schwach)
- GT risk factor detail (F/W/P/S) shown per entry
- Match counts in tab header (X exakt, Y aehnlich)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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

@@ -5,6 +5,7 @@ import { useParams } from 'next/navigation'
 import { HazardForm } from './_components/HazardForm'
 import { HazardTable } from './_components/HazardTable'
 import { HazardBlockView } from './_components/HazardBlockView'
+import { BlockAwareRiskTable } from './_components/BlockAwareRiskTable'
 import { RiskAssessmentTable } from './_components/RiskAssessmentTable'
 import { ResidualRiskPanel, getResidualStatus } from './_components/ResidualRiskPanel'
 import type { ResidualFilter } from './_components/ResidualRiskPanel'
@@ -174,7 +175,7 @@ export default function HazardsPage() {
           <>
             <ResidualRiskPanel hazards={h.hazards} decisions={decisions}
               activeFilter={residualFilter} onFilterChange={setResidualFilter} />
-            <RiskAssessmentTable projectId={projectId} hazards={filteredHazards}
+            <BlockAwareRiskTable projectId={projectId} hazards={filteredHazards}
               onReassess={h.refetch} decisions={decisions} onDecision={handleDecision} />
           </>
         ) : view === 'blocks' ? (