feat(karakeep): añadir stack de archivo de enlaces con OCR e IA

- stack.env: plantilla con configuración de modelos de inferencia
  (text, embedding) y parámetros de OCR multilingüe (eng, spa)
- docker-compose.yml: ajustes del stack

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

karakeep/docker-compose.yml

@@ -42,6 +42,11 @@ services:
       - karakeep_internal
       - proxy
     labels:
+      traefik.enable: "true"
+      traefik.docker.network: "${TRAEFIK_DOCKER_NETWORK}"
+      traefik.http.routers.karakeep.rule: "Host(`${KARAKEEP_DOMAIN}`)"
+      traefik.http.routers.karakeep.entrypoints: "${TRAEFIK_ENTRYPOINT_SECURE}"
+      traefik.http.routers.karakeep.tls.certresolver: "${TRAEFIK_CERTRESOLVER}"
       traefik.http.services.karakeep.loadbalancer.server.port: "3000"
 
   karakeep-chrome:

karakeep/stack.env

@@ -0,0 +1,28 @@
+KARAKEEP_VERSION=0.31.0
+KARAKEEP_DOMAIN=app.example.com
+TRAEFIK_DOCKER_NETWORK=proxy
+TRAEFIK_ENTRYPOINT_SECURE=websecure
+TRAEFIK_CERTRESOLVER=letsencrypt
+NEXTAUTH_SECRET=change-me
+MEILI_MASTER_KEY=CAMBIAME_meili_master_key_super_largo_y_unico
+DISABLE_SIGNUPS=true
+OCR_LANGS=eng,spa
+
+OPENAI_API_KEY=change-me
+INFERENCE_TEXT_MODEL=gpt-4.1-mini
+INFERENCE_IMAGE_MODEL=gpt-4o-mini
+EMBEDDING_TEXT_MODEL=text-embedding-3-small
+INFERENCE_LANG=spanish
+INFERENCE_ENABLE_AUTO_TAGGING=true
+INFERENCE_ENABLE_AUTO_SUMMARIZATION=true
+INFERENCE_CONTEXT_LENGTH=4096
+INFERENCE_MAX_OUTPUT_TOKENS=1024
+INFERENCE_USE_MAX_COMPLETION_TOKENS=false
+INFERENCE_NUM_WORKERS=1
+INFERENCE_JOB_TIMEOUT_SEC=30
+
+LOG_LEVEL=warning
+DB_WAL_MODE=true
+
+SERVICE_URL_KARAKEEP=https://app.example.com
+SERVICE_FQDN_KARAKEEP=app.example.com