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/lib/sdk/dsfa/__tests__/types.test.ts

@@ -199,11 +199,14 @@ describe('DSFAMitigation type', () => {
 describe('DSFASectionProgress type', () => {
   it('should track completion for all 5 sections', () => {
     const progress: DSFASectionProgress = {
+      section_0_complete: false,
       section_1_complete: true,
       section_2_complete: true,
       section_3_complete: false,
       section_4_complete: false,
       section_5_complete: false,
+      section_6_complete: false,
+      section_7_complete: false,
     }
 
     expect(progress.section_1_complete).toBe(true)