feat: Dokumentengenerator — Vollständige Vorlage-Bibliothek + Frontend-Redesign

- Migration 020: Typ-Renames (data_processing_agreement→dpa, withdrawal_policy→widerruf) + 11 neue MIT-Templates (NDA DE/EN, SLA, AUP, Community Guidelines, Copyright Policy, Cloud Service Agreement, Data Usage Clause, Cookie Banner, AGB, Liability Clause)
- Backend: VALID_DOCUMENT_TYPES auf 16 Typen erweitert; /legal-templates/status nutzt jetzt dynamisches GROUP BY statt Hard-coded Felder
- searchTemplates.ts: loadAllTemplates() für Library-First UX
- page.tsx: Vollständig-Rewrite — Template-Bibliothek (immer sichtbar) mit Kategorie-Pills, Sprache-Toggle, optionaler Suche, Inline-Preview-Expand und Kachel-Grid; Generator-Section erscheint per Scroll wenn Vorlage gewählt
- Tests: 52/52 bestanden, TestLegalTemplateNewTypes (19 neue Tests) + aktualisierte Typ-Checks

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

admin-compliance/app/(sdk)/sdk/document-generator/searchTemplates.ts

@@ -120,6 +120,24 @@ function mapTemplateToResult(r: any): LegalTemplateResult {
   }
 }
 
+/**
+ * Load all published templates without requiring a search query.
+ * Used for the library-first UX (show all cards on initial load).
+ */
+export async function loadAllTemplates(limit = 200): Promise<LegalTemplateResult[]> {
+  try {
+    const url = new URL(TEMPLATES_API, window.location.origin)
+    url.searchParams.set('limit', String(limit))
+    url.searchParams.set('status', 'published')
+    const res = await fetch(url.toString(), { signal: AbortSignal.timeout(5000) })
+    if (res.ok) {
+      const data = await res.json()
+      return (data.templates || []).map(mapTemplateToResult)
+    }
+  } catch { /* ignore */ }
+  return []
+}
+
 export async function getTemplatesStatus(): Promise<any> {
   try {
     const res = await fetch(`${TEMPLATES_API}/status`, { signal: AbortSignal.timeout(5000) })