feat: Phase 3 — RAG-Anbindung fuer alle 18 Dokumenttypen + Vendor Contract Review

Migrate queryRAG from klausur-service GET to bp-core-rag-service POST with
multi-collection support. Each of the 18 ScopeDocumentType now gets a
type-specific RAG collection and optimized search query instead of the
generic fallback. Vendor-compliance contract review now uses LLM + RAG
for real analysis with mock fallback on error.

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

admin-compliance/lib/sdk/drafting-engine/rag-query.ts

@@ -1,24 +1,35 @@
 /**
  * Shared RAG query utility for the Drafting Engine.
  *
- * Queries the DSFA RAG corpus via klausur-service for relevant legal context.
+ * Queries the bp-core-rag-service for relevant legal context.
+ * Supports multi-collection search via POST /api/v1/search.
  * Used by both chat and draft routes.
  */
 
-const KLAUSUR_SERVICE_URL = process.env.KLAUSUR_SERVICE_URL || 'http://klausur-service:8086'
+const RAG_SERVICE_URL = process.env.RAG_SERVICE_URL || 'http://bp-core-rag-service:8097'
 
 /**
  * Query the RAG corpus for relevant legal documents.
  *
- * @param query - The search query (e.g. "DSFA Art. 35 DSGVO")
+ * @param query - The search query (e.g. "Art. 35 DSGVO Risikobewertung")
  * @param topK - Number of results to return (default: 3)
+ * @param collection - Optional RAG collection name (e.g. "bp_dsfa_corpus")
  * @returns Formatted string of legal context, or empty string on error
  */
-export async function queryRAG(query: string, topK = 3): Promise<string> {
+export async function queryRAG(query: string, topK = 3, collection?: string): Promise<string> {
   try {
-    const url = `${KLAUSUR_SERVICE_URL}/api/v1/dsfa-rag/search?query=${encodeURIComponent(query)}&top_k=${topK}`
-    const res = await fetch(url, {
+    const body: Record<string, unknown> = {
+      query,
+      top_k: topK,
+    }
+    if (collection) {
+      body.collection = collection
+    }
+
+    const res = await fetch(`${RAG_SERVICE_URL}/api/v1/search`, {
+      method: 'POST',
       headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(body),
       signal: AbortSignal.timeout(10000),
     })