fix(compliance-advisor): Update RAG endpoint to use DSFA corpus API

Switch from /admin/legal-corpus/search to /dsfa-rag/search endpoint.
Add RAGResult interface for type safety.

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

admin-v2/app/api/sdk/compliance-advisor/chat/route.ts

@@ -76,12 +76,20 @@ Diese gehoeren nicht zum Datenschutz-Kompetenzbereich.
 - Bei widerspruechlichen Rechtslagen: Beide Positionen darstellen und DSB-Konsultation empfehlen
 - Bei dringenden Datenpannen: Auf 72-Stunden-Frist (Art. 33 DSGVO) hinweisen und Notfallplan-Modul empfehlen`
 
+interface RAGResult {
+  content: string
+  source_name: string
+  source_code: string
+  attribution_text: string
+  score: number
+}
+
 /**
- * Query the RAG legal corpus for relevant documents
+ * Query the DSFA RAG corpus for relevant documents
  */
 async function queryRAG(query: string): Promise<string> {
   try {
-    const url = `${KLAUSUR_SERVICE_URL}/api/v1/admin/legal-corpus/search?query=${encodeURIComponent(query)}&top_k=5`
+    const url = `${KLAUSUR_SERVICE_URL}/api/v1/dsfa-rag/search?query=${encodeURIComponent(query)}&top_k=5`
     const res = await fetch(url, {
       headers: { 'Content-Type': 'application/json' },
       signal: AbortSignal.timeout(10000),
@@ -97,8 +105,8 @@ async function queryRAG(query: string): Promise<string> {
     if (data.results && data.results.length > 0) {
       return data.results
         .map(
-          (r: { metadata?: { regulation?: string; source?: string }; text?: string; content?: string }, i: number) =>
-            `[Quelle ${i + 1}: ${r.metadata?.regulation || r.metadata?.source || 'Unbekannt'}]\n${r.text || r.content || ''}`
+          (r: RAGResult, i: number) =>
+            `[Quelle ${i + 1}: ${r.source_name || r.source_code || 'Unbekannt'}]\n${r.content || ''}`
         )
         .join('\n\n---\n\n')
     }