feat(advisor): multi-collection RAG search + country filter (DE/AT/CH/EU)

- Replace single DSFA corpus query with parallel search across 6 collections
  via RAG service (port 8097)
- Add country parameter with metadata filter for bp_compliance_gesetze
- Add country-specific system prompt section
- Add DE/AT/CH/EU toggle buttons in ComplianceAdvisorWidget header

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

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

@@ -2,18 +2,31 @@
  * Compliance Advisor Chat API
  *
  * Connects the ComplianceAdvisorWidget to:
- * 1. RAG legal corpus search (klausur-service) for context
+ * 1. Multi-Collection RAG search (rag-service) for context across 6 collections
  * 2. Ollama LLM (32B) for generating answers
  *
+ * Supports country-specific filtering (DE, AT, CH, EU).
  * Streams the LLM response back as plain text.
  */
 
 import { NextRequest, NextResponse } from 'next/server'
 
-const KLAUSUR_SERVICE_URL = process.env.KLAUSUR_SERVICE_URL || 'http://klausur-service:8086'
+const RAG_SERVICE_URL = process.env.RAG_SERVICE_URL || 'http://rag-service:8097'
 const OLLAMA_URL = process.env.OLLAMA_URL || 'http://host.docker.internal:11434'
 const LLM_MODEL = process.env.COMPLIANCE_LLM_MODEL || 'qwen2.5vl:32b'
 
+// All compliance-relevant collections (without NiBiS)
+const COMPLIANCE_COLLECTIONS = [
+  'bp_compliance_gesetze',
+  'bp_compliance_ce',
+  'bp_compliance_datenschutz',
+  'bp_dsfa_corpus',
+  'bp_compliance_recht',
+  'bp_legal_templates',
+] as const
+
+type Country = 'DE' | 'AT' | 'CH' | 'EU'
+
 // SOUL system prompt (from agent-core/soul/compliance-advisor.soul.md)
 const SYSTEM_PROMPT = `# Compliance Advisor Agent
 
@@ -44,6 +57,8 @@ offiziellen Quellen und gibst praxisnahe Hinweise.
 - EDPB Guidelines (Leitlinien des Europaeischen Datenschutzausschusses)
 - Bundes- und Laender-Muss-Listen (DSFA-Listen der Aufsichtsbehoerden)
 - WP29/WP248 (Art.-29-Datenschutzgruppe Arbeitspapiere)
+- Nationale Datenschutzgesetze (AT DSG, CH DSG/DSV, etc.)
+- EU-Verordnungen (DORA, MiCA, Data Act, EHDS, PSD2, AMLR, etc.)
 
 ## RAG-Nutzung
 Nutze das gesamte RAG-Corpus fuer Kontext und Quellenangaben — ausgenommen sind
@@ -76,44 +91,87 @@ 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 {
+const COUNTRY_LABELS: Record<Country, string> = {
+  DE: 'Deutschland',
+  AT: 'Oesterreich',
+  CH: 'Schweiz',
+  EU: 'EU-weit',
+}
+
+interface RAGSearchResult {
   content: string
-  source_name: string
-  source_code: string
-  attribution_text: string
+  source_name?: string
+  source_code?: string
+  attribution_text?: string
   score: number
+  collection?: string
+  metadata?: Record<string, unknown>
 }
 
 /**
- * Query the DSFA RAG corpus for relevant documents
+ * Query multiple RAG collections in parallel, with optional country filter
  */
-async function queryRAG(query: string): Promise<string> {
+async function queryMultiCollectionRAG(query: string, country?: Country): Promise<string> {
   try {
-    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),
+    const searchPromises = COMPLIANCE_COLLECTIONS.map(async (collection) => {
+      const searchBody: Record<string, unknown> = {
+        query,
+        collection,
+        top_k: 3,
+      }
+
+      // Apply country filter for gesetze collection
+      if (collection === 'bp_compliance_gesetze' && country && country !== 'EU') {
+        searchBody.metadata_filter = {
+          must: [
+            {
+              key: 'country',
+              match: { any: [country, 'EU'] },
+            },
+          ],
+        }
+      }
+
+      const res = await fetch(`${RAG_SERVICE_URL}/api/v1/search`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify(searchBody),
+        signal: AbortSignal.timeout(10000),
+      })
+
+      if (!res.ok) return []
+
+      const data = await res.json()
+      return (data.results || []).map((r: RAGSearchResult) => ({
+        ...r,
+        collection,
+      }))
     })
 
-    if (!res.ok) {
-      console.warn('RAG search failed:', res.status)
-      return ''
+    const settled = await Promise.allSettled(searchPromises)
+    const allResults: RAGSearchResult[] = []
+
+    for (const result of settled) {
+      if (result.status === 'fulfilled') {
+        allResults.push(...result.value)
+      }
     }
 
-    const data = await res.json()
+    // Sort by score descending, take top 8
+    allResults.sort((a, b) => b.score - a.score)
+    const topResults = allResults.slice(0, 8)
 
-    if (data.results && data.results.length > 0) {
-      return data.results
-        .map(
-          (r: RAGResult, i: number) =>
-            `[Quelle ${i + 1}: ${r.source_name || r.source_code || 'Unbekannt'}]\n${r.content || ''}`
-        )
-        .join('\n\n---\n\n')
-    }
+    if (topResults.length === 0) return ''
 
-    return ''
+    return topResults
+      .map((r, i) => {
+        const source = r.source_name || r.source_code || 'Unbekannt'
+        const col = r.collection ? ` [${r.collection}]` : ''
+        return `[Quelle ${i + 1}: ${source}${col}]\n${r.content || ''}`
+      })
+      .join('\n\n---\n\n')
   } catch (error) {
-    console.warn('RAG query error (continuing without context):', error)
+    console.warn('Multi-collection RAG query error (continuing without context):', error)
     return ''
   }
 }
@@ -121,25 +179,38 @@ async function queryRAG(query: string): Promise<string> {
 export async function POST(request: NextRequest) {
   try {
     const body = await request.json()
-    const { message, history = [], currentStep = 'default' } = body
+    const { message, history = [], currentStep = 'default', country } = body
 
     if (!message || typeof message !== 'string') {
       return NextResponse.json({ error: 'Message is required' }, { status: 400 })
     }
 
-    // 1. Query RAG for relevant context
-    const ragContext = await queryRAG(message)
+    // Validate country parameter
+    const validCountry = ['DE', 'AT', 'CH', 'EU'].includes(country) ? (country as Country) : undefined
 
-    // 2. Build system prompt with RAG context
+    // 1. Query RAG across all collections
+    const ragContext = await queryMultiCollectionRAG(message, validCountry)
+
+    // 2. Build system prompt with RAG context + country
     let systemContent = SYSTEM_PROMPT
 
+    if (validCountry) {
+      const countryLabel = COUNTRY_LABELS[validCountry]
+      systemContent += `\n\n## Laenderspezifische Auskunft
+Der Nutzer hat "${countryLabel} (${validCountry})" gewaehlt.
+- Beziehe dich AUSSCHLIESSLICH auf ${validCountry}-Recht + anwendbares EU-Recht
+- Nenne IMMER explizit das Land in deiner Antwort
+- Verwende NIEMALS Gesetze eines anderen Landes
+- Bei ${validCountry === 'EU' ? 'EU-weiten Fragen: Beziehe dich auf EU-Verordnungen und -Richtlinien' : `${countryLabel}: Beziehe nationale Gesetze (${validCountry === 'DE' ? 'BDSG, TDDDG, TKG, UWG' : validCountry === 'AT' ? 'AT DSG, ECG, TKG, KSchG, MedienG' : 'CH DSG, DSV, OR, UWG, FMG'}) mit ein`}`
+    }
+
     if (ragContext) {
       systemContent += `\n\n## Relevanter Kontext aus dem RAG-System\n\nNutze die folgenden Quellen fuer deine Antwort. Verweise in deiner Antwort auf die jeweilige Quelle:\n\n${ragContext}`
     }
 
     systemContent += `\n\n## Aktueller SDK-Schritt\nDer Nutzer befindet sich im SDK-Schritt: ${currentStep}`
 
-    // 3. Build messages array (limit history to last 10 messages)
+    // 3. Build messages array (limit history to last 6 messages)
     const messages = [
       { role: 'system', content: systemContent },
       ...history.slice(-6).map((h: { role: string; content: string }) => ({

admin-compliance/components/sdk/ComplianceAdvisorWidget.tsx

@@ -59,6 +59,15 @@ const EXAMPLE_QUESTIONS: Record<string, string[]> = {
 // COMPONENT
 // =============================================================================
 
+type Country = 'DE' | 'AT' | 'CH' | 'EU'
+
+const COUNTRIES: { code: Country; label: string }[] = [
+  { code: 'DE', label: 'DE' },
+  { code: 'AT', label: 'AT' },
+  { code: 'CH', label: 'CH' },
+  { code: 'EU', label: 'EU' },
+]
+
 export function ComplianceAdvisorWidget({ currentStep = 'default', enableDraftingEngine = false }: ComplianceAdvisorWidgetProps) {
   // Feature-flag: If Drafting Engine enabled, render DraftingEngineWidget instead
   if (enableDraftingEngine) {
@@ -71,6 +80,7 @@ export function ComplianceAdvisorWidget({ currentStep = 'default', enableDraftin
   const [messages, setMessages] = useState<Message[]>([])
   const [inputValue, setInputValue] = useState('')
   const [isTyping, setIsTyping] = useState(false)
+  const [selectedCountry, setSelectedCountry] = useState<Country>('DE')
   const messagesEndRef = useRef<HTMLDivElement>(null)
   const abortControllerRef = useRef<AbortController | null>(null)
 
@@ -124,6 +134,7 @@ export function ComplianceAdvisorWidget({ currentStep = 'default', enableDraftin
             message: content.trim(),
             history,
             currentStep,
+            country: selectedCountry,
           }),
           signal: abortControllerRef.current.signal,
         })
@@ -201,7 +212,7 @@ export function ComplianceAdvisorWidget({ currentStep = 'default', enableDraftin
         setIsTyping(false)
       }
     },
-    [isTyping, messages, currentStep]
+    [isTyping, messages, currentStep, selectedCountry]
   )
 
   // Handle stop generation
@@ -269,7 +280,21 @@ export function ComplianceAdvisorWidget({ currentStep = 'default', enableDraftin
           </div>
           <div>
             <div className="font-semibold text-sm">Compliance Advisor</div>
-            <div className="text-xs text-white/80">KI-gestuetzter Assistent</div>
+            <div className="flex items-center gap-1 mt-0.5">
+              {COUNTRIES.map(({ code, label }) => (
+                <button
+                  key={code}
+                  onClick={() => setSelectedCountry(code)}
+                  className={`px-1.5 py-0.5 text-[10px] font-medium rounded transition-colors ${
+                    selectedCountry === code
+                      ? 'bg-white text-indigo-700'
+                      : 'bg-white/15 text-white/80 hover:bg-white/25'
+                  }`}
+                >
+                  {label}
+                </button>
+              ))}
+            </div>
           </div>
         </div>
         <div className="flex items-center gap-1">