feat(admin-v2): Major SDK/Compliance overhaul and new modules

SDK modules added/enhanced:
- compliance-hub, compliance-scope, consent-management, notfallplan
- audit-report, workflow, source-policy, dsms
- advisory-board documentation section
- TOM dashboard components, TOM generator SDM mapping
- DSFA: mitigation library, risk catalog, threshold analysis, source attribution
- VVT: baseline catalog, profiling engine, types
- Loeschfristen: baseline catalog, compliance engine, export, profiling, types
- Compliance scope: engine, profiling, golden tests, types

Existing SDK pages updated:
- dsfa/[id], tom, vvt, loeschfristen, advisory-board — expanded functionality
- SDKSidebar, StepHeader — new navigation items and layout
- SDK layout, context, types — expanded type system

Other admin-v2 changes:
- AI agents page, RAG pipeline DSFA integration
- GridOverlay component updates
- Companion feature (development + education)
- Compliance advisor SOUL definition

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-v2/app/(admin)/development/companion/page.tsx

@@ -0,0 +1,39 @@
+'use client'
+
+import { PagePurpose } from '@/components/common/PagePurpose'
+import { getModuleByHref } from '@/lib/navigation'
+import { GraduationCap, Construction } from 'lucide-react'
+
+export default function CompanionPage() {
+  const moduleInfo = getModuleByHref('/development/companion')
+
+  return (
+    <div className="space-y-6">
+      {moduleInfo && (
+        <PagePurpose
+          title={moduleInfo.module.name}
+          purpose={moduleInfo.module.purpose}
+          audience={moduleInfo.module.audience}
+          collapsible={true}
+          defaultCollapsed={true}
+        />
+      )}
+
+      <div className="bg-white border border-slate-200 rounded-xl p-8 text-center">
+        <div className="flex justify-center mb-4">
+          <div className="p-4 bg-slate-100 rounded-full">
+            <GraduationCap className="w-12 h-12 text-slate-400" />
+          </div>
+        </div>
+        <h2 className="text-xl font-semibold text-slate-800 mb-2">Companion Dev</h2>
+        <p className="text-slate-600 mb-4">
+          Lesson-Modus Entwicklung fuer strukturiertes Lernen.
+        </p>
+        <div className="inline-flex items-center gap-2 px-4 py-2 bg-amber-50 border border-amber-200 rounded-lg text-amber-700">
+          <Construction className="w-4 h-4" />
+          <span className="text-sm font-medium">In Entwicklung</span>
+        </div>
+      </div>
+    </div>
+  )
+}