feat: add OceanBase doc engine (#11228)

### What problem does this PR solve?

Add OceanBase doc engine. Close #5350

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

docker/docker-compose-base.yml

@@ -96,6 +96,31 @@ services:
       retries: 120
     restart: on-failure
 
+  oceanbase:
+    profiles:
+      - oceanbase
+    image: oceanbase/oceanbase-ce:4.4.1.0-100000032025101610
+    volumes:
+      - ./oceanbase/data:/root/ob
+      - ./oceanbase/conf:/root/.obd/cluster
+      - ./oceanbase/init.d:/root/boot/init.d
+    ports:
+      - ${OCEANBASE_PORT:-2881}:2881
+    env_file: .env
+    environment:
+      - MODE=normal
+      - OB_SERVER_IP=127.0.0.1
+    mem_limit: ${MEM_LIMIT}
+    healthcheck:
+      test: [ 'CMD-SHELL', 'obclient -h127.0.0.1 -P2881 -uroot@${OB_TENANT_NAME:-ragflow} -p${OB_TENANT_PASSWORD:-infini_rag_flow} -e "CREATE DATABASE IF NOT EXISTS ${OCEANBASE_DOC_DBNAME:-ragflow_doc};"' ]
+      interval: 10s
+      retries: 30
+      start_period: 30s
+      timeout: 10s
+    networks:
+      - ragflow
+    restart: on-failure
+
   sandbox-executor-manager:
     profiles:
       - sandbox
@@ -256,6 +281,8 @@ volumes:
     driver: local
   infinity_data:
     driver: local
+  ob_data:
+    driver: local
   mysql_data:
     driver: local
   minio_data: