feat: A4 preview + example data + company profile presets

Feature 1: DIN A4 Preview
- Markdown→HTML renderer (inline, no dependency)
- A4 page container (210mm × 297mm) with print styling
- Toggle between "Vorschau" (rendered A4) and "Markdown" (raw)
- Print button opens new window with @page A4 CSS
- Purple theme for headings, styled tables

Feature 2: Example Data Button
- "Beispieldaten" button in Generator header
- Loads examples/{templateType}_{lang}.json
- Prefills all context fields for instant full preview

Feature 3: Company Profile Presets
- 10 industry presets: SaaS Startup, Consumer App, E-Commerce,
  IT-Agentur, Maschinenbau, Rechtsanwalt, Arztpraxis, Handwerk,
  Bildung, Enterprise
- Each with pre-filled CompanyProfile + scope hints + recommended docs
- PresetSelector component (card grid with icons)
- "Manuell ausfuellen" skip option

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

admin-compliance/app/sdk/company-profile/_components/PresetSelector.tsx

@@ -0,0 +1,49 @@
+'use client'
+
+import { COMPANY_PROFILE_PRESETS, type CompanyProfilePreset } from '@/lib/sdk/company-profile-presets'
+
+interface PresetSelectorProps {
+  onSelect: (preset: CompanyProfilePreset) => void
+  onSkip: () => void
+}
+
+export function PresetSelector({ onSelect, onSkip }: PresetSelectorProps) {
+  return (
+    <div className="space-y-6">
+      <div className="text-center">
+        <h2 className="text-xl font-bold text-gray-900">Welcher Unternehmenstyp passt zu Ihnen?</h2>
+        <p className="text-sm text-gray-500 mt-2">
+          Waehlen Sie eine Vorlage fuer Ihre Branche — alle Felder werden vorbefuellt
+          und Sie koennen anschliessend anpassen.
+        </p>
+      </div>
+
+      <div className="grid grid-cols-2 md:grid-cols-3 lg:grid-cols-5 gap-3">
+        {COMPANY_PROFILE_PRESETS.map((preset) => (
+          <button
+            key={preset.id}
+            onClick={() => onSelect(preset)}
+            className="flex flex-col items-center gap-2 p-4 bg-white border border-gray-200 rounded-xl hover:border-purple-400 hover:shadow-md transition-all text-center group"
+          >
+            <span className="text-3xl">{preset.icon}</span>
+            <span className="text-sm font-medium text-gray-900 group-hover:text-purple-700">
+              {preset.label}
+            </span>
+            <span className="text-xs text-gray-500 leading-tight">
+              {preset.description}
+            </span>
+          </button>
+        ))}
+      </div>
+
+      <div className="text-center">
+        <button
+          onClick={onSkip}
+          className="text-sm text-gray-400 hover:text-gray-600 underline"
+        >
+          Manuell ausfuellen (ohne Vorlage)
+        </button>
+      </div>
+    </div>
+  )
+}