feat(iace-frontend): Risikobewertung tab with dual risk model + live formula

New tab /sdk/iace/[projectId]/risikobewertung. Per hazard it shows BOTH models
side by side — EN-62061-style (S/F/W/P) and Fine-Kinney (P/E/C) — with
BreakPilot's justified suggested values from public data, the visible formula,
and editable fields that recompute the score + risk band live. The professional
adjusts the values (e.g. from his own licensed DIN/Beuth data); we only supply
the formula + inputs, reproduce no norm table.

Consumes GET .../hazards/:hid/risk-suggestion. Registered in IACE_NAV_ITEMS.

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

admin-compliance/app/sdk/iace/layout.tsx

@@ -13,6 +13,7 @@ const IACE_NAV_ITEMS = [
   { id: 'norms', label: 'Normenrecherche', href: '/norms', icon: 'book' },
   { id: 'components', label: 'Komponenten', href: '/components', icon: 'cube' },
   { id: 'hazards', label: 'Hazard Log', href: '/hazards', icon: 'warning' },
+  { id: 'risikobewertung', label: 'Risikobewertung', href: '/risikobewertung', icon: 'activity' },
   { id: 'mitigations', label: 'Massnahmen', href: '/mitigations', icon: 'shield' },
   { id: 'clarifications', label: 'Klärungen', href: '/clarifications', icon: 'chat' },
   { id: 'verification', label: 'Verifikation', href: '/verification', icon: 'check' },