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/api/admin/companion/settings/route.ts

@@ -0,0 +1,137 @@
+import { NextRequest, NextResponse } from 'next/server'
+
+const DEFAULT_SETTINGS = {
+  defaultPhaseDurations: {
+    einstieg: 8,
+    erarbeitung: 20,
+    sicherung: 10,
+    transfer: 7,
+    reflexion: 5,
+  },
+  preferredLessonLength: 45,
+  autoAdvancePhases: true,
+  soundNotifications: true,
+  showKeyboardShortcuts: true,
+  highContrastMode: false,
+  onboardingCompleted: false,
+}
+
+/**
+ * GET /api/admin/companion/settings
+ * Get teacher settings
+ * Proxy to backend /api/teacher/settings
+ */
+export async function GET() {
+  try {
+    // TODO: Replace with actual backend call
+    // const backendUrl = process.env.BACKEND_URL || 'http://localhost:8000'
+    // const response = await fetch(`${backendUrl}/api/teacher/settings`, {
+    //   method: 'GET',
+    //   headers: {
+    //     'Content-Type': 'application/json',
+    //     // Add auth headers
+    //   },
+    // })
+    //
+    // if (!response.ok) {
+    //   throw new Error(`Backend responded with ${response.status}`)
+    // }
+    //
+    // const data = await response.json()
+    // return NextResponse.json(data)
+
+    // Mock response - return default settings
+    return NextResponse.json({
+      success: true,
+      data: DEFAULT_SETTINGS,
+    })
+  } catch (error) {
+    console.error('Get settings error:', error)
+    return NextResponse.json(
+      {
+        success: false,
+        error: error instanceof Error ? error.message : 'Unknown error',
+      },
+      { status: 500 }
+    )
+  }
+}
+
+/**
+ * PUT /api/admin/companion/settings
+ * Update teacher settings
+ */
+export async function PUT(request: NextRequest) {
+  try {
+    const body = await request.json()
+
+    // Validate the settings structure
+    if (!body || typeof body !== 'object') {
+      return NextResponse.json(
+        { success: false, error: 'Invalid settings data' },
+        { status: 400 }
+      )
+    }
+
+    // TODO: Replace with actual backend call
+    // const backendUrl = process.env.BACKEND_URL || 'http://localhost:8000'
+    // const response = await fetch(`${backendUrl}/api/teacher/settings`, {
+    //   method: 'PUT',
+    //   headers: {
+    //     'Content-Type': 'application/json',
+    //     // Add auth headers
+    //   },
+    //   body: JSON.stringify(body),
+    // })
+    //
+    // if (!response.ok) {
+    //   throw new Error(`Backend responded with ${response.status}`)
+    // }
+    //
+    // const data = await response.json()
+    // return NextResponse.json(data)
+
+    // Mock response - just acknowledge the save
+    return NextResponse.json({
+      success: true,
+      message: 'Settings saved',
+      data: body,
+    })
+  } catch (error) {
+    console.error('Save settings error:', error)
+    return NextResponse.json(
+      {
+        success: false,
+        error: error instanceof Error ? error.message : 'Unknown error',
+      },
+      { status: 500 }
+    )
+  }
+}
+
+/**
+ * PATCH /api/admin/companion/settings
+ * Partially update teacher settings
+ */
+export async function PATCH(request: NextRequest) {
+  try {
+    const body = await request.json()
+
+    // TODO: Replace with actual backend call
+
+    return NextResponse.json({
+      success: true,
+      message: 'Settings updated',
+      data: body,
+    })
+  } catch (error) {
+    console.error('Update settings error:', error)
+    return NextResponse.json(
+      {
+        success: false,
+        error: error instanceof Error ? error.message : 'Unknown error',
+      },
+      { status: 500 }
+    )
+  }
+}