refactor(admin): split advisory-board page.tsx into colocated components

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

admin-compliance/app/sdk/advisory-board/_components/NavigationButtons.tsx

@@ -0,0 +1,54 @@
+'use client'
+
+import React from 'react'
+
+interface Props {
+  currentStep: number
+  isSubmitting: boolean
+  isEditMode: boolean
+  titleEmpty: boolean
+  onBack: () => void
+  onNext: () => void
+  onSubmit: () => void
+}
+
+export function NavigationButtons({ currentStep, isSubmitting, isEditMode, titleEmpty, onBack, onNext, onSubmit }: Props) {
+  return (
+    <div className="flex items-center justify-between">
+      <button
+        onClick={onBack}
+        className="px-4 py-2 text-gray-600 hover:bg-gray-100 rounded-lg transition-colors"
+      >
+        {currentStep === 1 ? 'Abbrechen' : 'Zurueck'}
+      </button>
+
+      {currentStep < 8 ? (
+        <button
+          onClick={onNext}
+          disabled={currentStep === 1 && titleEmpty}
+          className="px-6 py-2 bg-purple-600 text-white rounded-lg hover:bg-purple-700 transition-colors disabled:opacity-50"
+        >
+          Weiter
+        </button>
+      ) : (
+        <button
+          onClick={onSubmit}
+          disabled={isSubmitting || titleEmpty}
+          className="px-6 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 transition-colors disabled:opacity-50 flex items-center gap-2"
+        >
+          {isSubmitting ? (
+            <>
+              <svg className="w-5 h-5 animate-spin" fill="none" viewBox="0 0 24 24">
+                <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z" />
+              </svg>
+              Bewerte...
+            </>
+          ) : (
+            isEditMode ? 'Speichern & neu bewerten' : 'Assessment starten'
+          )}
+        </button>
+      )}
+    </div>
+  )
+}