fix: Restore all files lost during destructive rebase

A previous `git pull --rebase origin main` dropped 177 local commits,
losing 3400+ files across admin-v2, backend, studio-v2, website,
klausur-service, and many other services. The partial restore attempt
(660295e2) only recovered some files.

This commit restores all missing files from pre-rebase ref 98933f5e
while preserving post-rebase additions (night-scheduler, night-mode UI,
NightModeWidget dashboard integration).

Restored features include:
- AI Module Sidebar (FAB), OCR Labeling, OCR Compare
- GPU Dashboard, RAG Pipeline, Magic Help
- Klausur-Korrektur (8 files), Abitur-Archiv (5+ files)
- Companion, Zeugnisse-Crawler, Screen Flow
- Full backend, studio-v2, website, klausur-service
- All compliance SDKs, agent-core, voice-service
- CI/CD configs, documentation, scripts

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

admin-v2/app/api/sdk/v1/checkpoints/route.ts

@@ -9,18 +9,10 @@ import { NextRequest, NextResponse } from 'next/server'
 
 // Checkpoint definitions
 const CHECKPOINTS = {
-  'CP-PROF': {
-    id: 'CP-PROF',
-    step: 'company-profile',
-    name: 'Unternehmensprofil Checkpoint',
-    type: 'REQUIRED',
-    blocksProgress: true,
-    requiresReview: 'NONE',
-  },
   'CP-UC': {
     id: 'CP-UC',
-    step: 'use-case-assessment',
-    name: 'Anwendungsfall Checkpoint',
+    step: 'use-case-workshop',
+    name: 'Use Case Checkpoint',
     type: 'REQUIRED',
     blocksProgress: true,
     requiresReview: 'NONE',

admin-v2/app/api/sdk/v1/flow/route.ts

@@ -10,15 +10,14 @@ import { NextRequest, NextResponse } from 'next/server'
 
 const SDK_STEPS = [
   // Phase 1
-  { id: 'company-profile', phase: 1, order: 1, name: 'Unternehmensprofil', url: '/sdk/company-profile' },
-  { id: 'use-case-assessment', phase: 1, order: 2, name: 'Anwendungsfall-Erfassung', url: '/sdk/advisory-board' },
-  { id: 'screening', phase: 1, order: 3, name: 'System Screening', url: '/sdk/screening' },
-  { id: 'modules', phase: 1, order: 4, name: 'Compliance Modules', url: '/sdk/modules' },
-  { id: 'requirements', phase: 1, order: 5, name: 'Requirements', url: '/sdk/requirements' },
-  { id: 'controls', phase: 1, order: 6, name: 'Controls', url: '/sdk/controls' },
-  { id: 'evidence', phase: 1, order: 7, name: 'Evidence', url: '/sdk/evidence' },
-  { id: 'audit-checklist', phase: 1, order: 8, name: 'Audit Checklist', url: '/sdk/audit-checklist' },
-  { id: 'risks', phase: 1, order: 9, name: 'Risk Matrix', url: '/sdk/risks' },
+  { id: 'use-case-workshop', phase: 1, order: 1, name: 'Use Case Workshop', url: '/sdk/advisory-board' },
+  { id: 'screening', phase: 1, order: 2, name: 'System Screening', url: '/sdk/screening' },
+  { id: 'modules', phase: 1, order: 3, name: 'Compliance Modules', url: '/sdk/modules' },
+  { id: 'requirements', phase: 1, order: 4, name: 'Requirements', url: '/sdk/requirements' },
+  { id: 'controls', phase: 1, order: 5, name: 'Controls', url: '/sdk/controls' },
+  { id: 'evidence', phase: 1, order: 6, name: 'Evidence', url: '/sdk/evidence' },
+  { id: 'audit-checklist', phase: 1, order: 7, name: 'Audit Checklist', url: '/sdk/audit-checklist' },
+  { id: 'risks', phase: 1, order: 8, name: 'Risk Matrix', url: '/sdk/risks' },
   // Phase 2
   { id: 'ai-act', phase: 2, order: 1, name: 'AI Act Klassifizierung', url: '/sdk/ai-act' },
   { id: 'obligations', phase: 2, order: 2, name: 'Pflichtenübersicht', url: '/sdk/obligations' },
@@ -56,7 +55,7 @@ function getPreviousStep(currentStepId: string) {
 export async function GET(request: NextRequest) {
   try {
     const { searchParams } = new URL(request.url)
-    const currentStepId = searchParams.get('currentStep') || 'company-profile'
+    const currentStepId = searchParams.get('currentStep') || 'use-case-workshop'
 
     const currentStep = SDK_STEPS.find(s => s.id === currentStepId)
     const nextStep = getNextStep(currentStepId)