feat(sdk): API-Referenz Frontend + Backend-Konsolidierung (Shared Utilities, CRUD Factory)

- API-Referenz Seite (/sdk/api-docs) mit ~690 Endpoints, Suche, Filter, Modul-Index
- Shared db_utils.py (row_to_dict) + tenant_utils Integration in 6 Route-Dateien
- CRUD Factory (crud_factory.py) fuer zukuenftige Module
- Version-Route Auto-Registration in versioning_utils.py
- 1338 Tests bestanden, -232 Zeilen Duplikat-Code

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

admin-compliance/components/sdk/Sidebar/SDKSidebar.tsx

@@ -726,6 +726,18 @@ export function SDKSidebar({ collapsed = false, onCollapsedChange }: SDKSidebarP
             isActive={pathname === '/sdk/catalog-manager'}
             collapsed={collapsed}
           />
+          <AdditionalModuleItem
+            href="/sdk/api-docs"
+            icon={
+              <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2}
+                  d="M10 20l4-16m4 4l4 4-4 4M6 16l-4-4 4-4" />
+              </svg>
+            }
+            label="API-Referenz"
+            isActive={pathname === '/sdk/api-docs'}
+            collapsed={collapsed}
+          />
           <Link
             href="/sdk/change-requests"
             className={`flex items-center gap-3 px-4 py-2.5 text-sm transition-colors ${