feat: Betrieb-Module auf 100% — Buttons verdrahtet, Delete-Flows, tote Links gefixt

- consent-management: ConsentTemplateCreateModal + useRouter für DSR-Navigation
- vendor-compliance: QuickActionCard unterstützt onClick; /vendors/new → Modal, /processing-activities/new → Liste
- incidents: handleDeleteIncident + Löschen-Button im IncidentDetailDrawer
- whistleblower: handleDeleteReport + Löschen-Button im CaseDetailPanel
- escalations: handleDeleteEscalation + Löschen-Button im EscalationDetailDrawer
- notfallplan: ExerciseCreateModal (API-backed) + handleDeleteExercise + Neue-Übung-Button

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

admin-compliance/app/(sdk)/sdk/vendor-compliance/page.tsx

@@ -414,7 +414,7 @@ export default function VendorComplianceDashboard() {
         <QuickActionCard
           title="Neue Verarbeitung"
           description="Verarbeitungstätigkeit anlegen"
-          href="/sdk/vendor-compliance/processing-activities/new"
+          href="/sdk/vendor-compliance/processing-activities"
           icon={
             <svg className="w-6 h-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
               <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z" />
@@ -424,7 +424,7 @@ export default function VendorComplianceDashboard() {
         <QuickActionCard
           title="Neuer Vendor"
           description="Auftragsverarbeiter anlegen"
-          href="/sdk/vendor-compliance/vendors/new"
+          onClick={() => setShowVendorCreate(true)}
           icon={
             <svg className="w-6 h-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
               <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" />
@@ -559,18 +559,17 @@ function QuickActionCard({
   title,
   description,
   href,
+  onClick,
   icon,
 }: {
   title: string
   description: string
-  href: string
+  href?: string
+  onClick?: () => void
   icon: React.ReactNode
 }) {
-  return (
-    <Link
-      href={href}
-      className="bg-white dark:bg-gray-800 rounded-lg shadow p-6 hover:shadow-md transition-shadow flex items-start gap-4"
-    >
+  const inner = (
+    <>
       <div className="flex-shrink-0 p-3 bg-blue-50 dark:bg-blue-900/20 rounded-lg text-blue-600 dark:text-blue-400">
         {icon}
       </div>
@@ -578,6 +577,26 @@ function QuickActionCard({
         <h3 className="font-medium text-gray-900 dark:text-white">{title}</h3>
         <p className="text-sm text-gray-500 dark:text-gray-400">{description}</p>
       </div>
+    </>
+  )
+
+  if (onClick) {
+    return (
+      <button
+        onClick={onClick}
+        className="bg-white dark:bg-gray-800 rounded-lg shadow p-6 hover:shadow-md transition-shadow flex items-start gap-4 w-full text-left"
+      >
+        {inner}
+      </button>
+    )
+  }
+
+  return (
+    <Link
+      href={href!}
+      className="bg-white dark:bg-gray-800 rounded-lg shadow p-6 hover:shadow-md transition-shadow flex items-start gap-4"
+    >
+      {inner}
     </Link>
   )
 }