fix(cra): IACE-Create braucht machine_type+manufacturer (binding required)

CreateProjectRequest verlangt machine_name, machine_type UND manufacturer
(alle required) → leere Werte gaben 400. Fallback 'Nicht angegeben', wenn das
Datenblatt sie nicht liefert (im Interview editierbar).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

admin-compliance/app/sdk/cra/_components/DatasheetExtract.tsx

@@ -64,8 +64,8 @@ export function DatasheetExtract() {
         method: 'POST', headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
           machine_name: machineName,
-          machine_type: limits.machine_type || '',
-          manufacturer: limits.manufacturer || '',
+          machine_type: limits.machine_type || 'Nicht angegeben',
+          manufacturer: limits.manufacturer || 'Nicht angegeben',
         }),
       })
       if (!cr.ok) return