fix(quality): Ruff/CVE/TS-Fixes, 104 neue Tests, Complexity-Refactoring

- Ruff: 144 auto-fixes (unused imports, == None → is None), F821/F811/F841 manuell
- CVEs: python-multipart>=0.0.22, weasyprint>=68.0, pillow>=12.1.1, npm audit fix (0 vulns)
- TS: 5 tote Drafting-Engine-Dateien entfernt, allowed-facts/sanitizer/StepHeader/context fixes
- Tests: +104 (ISMS 58, Evidence 18, VVT 14, Generation 14) → 1449 passed
- Refactoring: collect_ci_evidence (F→A), row_to_response (E→A), extract_requirements (E→A)
- Dead Code: pca-platform, 7 Go-Handler, dsr_api.py, duplicate Schemas entfernt

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

admin-compliance/components/sdk/ComplianceAdvisorWidget.tsx

@@ -15,7 +15,6 @@ interface Message {
 
 interface ComplianceAdvisorWidgetProps {
   currentStep?: string
-  enableDraftingEngine?: boolean
 }
 
 // =============================================================================
@@ -68,13 +67,7 @@ const COUNTRIES: { code: Country; label: string }[] = [
   { code: 'EU', label: 'EU' },
 ]
 
-export function ComplianceAdvisorWidget({ currentStep = 'default', enableDraftingEngine = false }: ComplianceAdvisorWidgetProps) {
-  // Feature-flag: If Drafting Engine enabled, render DraftingEngineWidget instead
-  if (enableDraftingEngine) {
-    const { DraftingEngineWidget } = require('./DraftingEngineWidget')
-    return <DraftingEngineWidget currentStep={currentStep} enableDraftingEngine />
-  }
-
+export function ComplianceAdvisorWidget({ currentStep = 'default' }: ComplianceAdvisorWidgetProps) {
   const [isOpen, setIsOpen] = useState(false)
   const [isExpanded, setIsExpanded] = useState(false)
   const [messages, setMessages] = useState<Message[]>([])