Update Ollama integration

docker-compose.dual.yml

@@ -1,4 +1,5 @@
-# Beispiel: Dasselbe Image gleichzeitig als Editor und als Helpdesk-Suche.
+# Dasselbe Image gleichzeitig als Editor und Helpdesk-Suche.
+# Der optionale Ollama-Fallback läuft ausschließlich im Google-/Search-Container.
 # Start: docker compose -f docker-compose.dual.yml up --build -d
 services:
   kb-editor:
@@ -40,11 +41,20 @@ services:
       APP_SUBTITLE: "${SEARCH_SUBTITLE:-Interne Lösungsdatenbank}"
       AUTO_RELOAD_INTERVAL: "${AUTO_RELOAD_INTERVAL:-60s}"
       DATA_DIR: /data/knowledge
+      STAGING_DIR: /data/staging
       LISTEN_ADDR: :8080
       BASIC_AUTH_USER: "${SEARCH_AUTH_USER:-}"
       BASIC_AUTH_PASSWORD: "${SEARCH_AUTH_PASSWORD:-}"
+      AI_FALLBACK_ENABLED: "${AI_FALLBACK_ENABLED:-false}"
+      OLLAMA_BASE_URL: "${OLLAMA_BASE_URL:-http://ollama:11434}"
+      OLLAMA_MODEL: "${OLLAMA_MODEL:-}"
+      OLLAMA_TIMEOUT: "${OLLAMA_TIMEOUT:-10m}"
+      OLLAMA_MAX_CONCURRENT: "${OLLAMA_MAX_CONCURRENT:-1}"
+      OLLAMA_STAGING_AUTO_REPLY: "${OLLAMA_STAGING_AUTO_REPLY:-false}"
+      OLLAMA_STAGING_MIN_SCORE: "${OLLAMA_STAGING_MIN_SCORE:-0.78}"
     volumes:
       - "${KB_DATA_PATH:-./knowledge}:/data/knowledge:ro"
+      - "${KB_STAGING_PATH:-./staging}:/data/staging:rw"
     read_only: true
     tmpfs:
       - /tmp:size=32m