fix(docker): soften ocr-service dependency and clean up compose

Changed ocr-service dependency from service_healthy to service_started
since the backend already handles OCR unavailability gracefully. Removed
unused APP_S3_INTERNAL_URL env var. Added expose directive and
.dockerignore for ocr-service.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose.yml

@@ -78,6 +78,8 @@ services:
       dockerfile: Dockerfile
     container_name: archive-ocr
     restart: unless-stopped
+    expose:
+      - "8000"
     mem_limit: 8g
     memswap_limit: 8g
     volumes:
@@ -117,7 +119,7 @@ services:
       mailpit:
         condition: service_started
       ocr-service:
-        condition: service_healthy
+        condition: service_started
     environment:
       SPRING_DATASOURCE_URL: jdbc:postgresql://db:5432/${POSTGRES_DB}
       SPRING_DATASOURCE_USERNAME: ${POSTGRES_USER}
@@ -139,7 +141,6 @@ services:
       SPRING_MAIL_PROPERTIES_MAIL_SMTP_AUTH: ${MAIL_SMTP_AUTH:-false}
       SPRING_MAIL_PROPERTIES_MAIL_SMTP_STARTTLS_ENABLE: ${MAIL_STARTTLS_ENABLE:-false}
       APP_OCR_BASE_URL: http://ocr-service:8000
-      APP_S3_INTERNAL_URL: http://minio:9000
     ports:
       - "${PORT_BACKEND}:8080"
     networks: