feat: 支持通过Flyway自动初始化数据库

- 将 starter 初始化脚本迁移到 db/migration，并保留 V1-V3 作为首批迁移

- 清理旧 sql/initdb 挂载与历史分段 SQL，避免 Docker 启动时重复导库

- 更新 README、应用配置和中间件编排，统一空库启动方式

docker-compose.middleware.yml

@@ -13,18 +13,17 @@ services:
       - --max_connections=500
       - --sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION
     environment:
-      TZ: ${TZ:-Asia/Shanghai}
-      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD:-root}
-      MYSQL_DATABASE: ${MYSQL_DATABASE:-easyflow}
-      MYSQL_USER: ${MYSQL_USER:-easyflow}
-      MYSQL_PASSWORD: ${MYSQL_PASSWORD:-123456}
+      TZ: Asia/Shanghai
+      MYSQL_ROOT_PASSWORD: root
+      MYSQL_DATABASE: easyflow
+      MYSQL_USER: easyflow
+      MYSQL_PASSWORD: "123456"
     ports:
-      - "${MYSQL_PORT:-3306}:3306"
+      - "3306:3306"
     volumes:
       - ./data/mysql:/var/lib/mysql
-      - ./easyflow/sql/initdb:/docker-entrypoint-initdb.d:ro
     healthcheck:
-      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-uroot", "-p${MYSQL_ROOT_PASSWORD:-root}"]
+      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-uroot", "-proot"]
       interval: 10s
       timeout: 5s
       retries: 10
@@ -34,13 +33,13 @@ services:
     image: swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/kubesphere/redis:7.2.4-alpine-linuxarm64
     container_name: easyflow-redis
     restart: unless-stopped
-    command: ["redis-server", "--appendonly", "yes", "--requirepass", "${REDIS_PASSWORD:-123456}"]
+    command: ["redis-server", "--appendonly", "yes", "--requirepass", "123456"]
     ports:
-      - "${REDIS_PORT:-6379}:6379"
+      - "6379:6379"
     volumes:
       - ./data/redis:/data
     healthcheck:
-      test: ["CMD", "redis-cli", "-a", "${REDIS_PASSWORD:-123456}", "ping"]
+      test: ["CMD", "redis-cli", "-a", "123456", "ping"]
       interval: 10s
       timeout: 5s
       retries: 10
@@ -51,7 +50,7 @@ services:
     container_name: easyflow-etcd
     restart: unless-stopped
     environment:
-      TZ: ${TZ:-Asia/Shanghai}
+      TZ: Asia/Shanghai
       ETCD_AUTO_COMPACTION_MODE: revision
       ETCD_AUTO_COMPACTION_RETENTION: "1000"
       ETCD_QUOTA_BACKEND_BYTES: "4294967296"
@@ -70,12 +69,12 @@ services:
     restart: unless-stopped
     command: server /data --address ":9000" --console-address ":9001"
     environment:
-      TZ: ${TZ:-Asia/Shanghai}
-      MINIO_ROOT_USER: ${MINIO_ROOT_USER:-easyflowadmin}
-      MINIO_ROOT_PASSWORD: ${MINIO_ROOT_PASSWORD:-easyflowadmin123}
+      TZ: Asia/Shanghai
+      MINIO_ROOT_USER: easyflowadmin
+      MINIO_ROOT_PASSWORD: easyflowadmin123
     ports:
-      - "${MINIO_PORT:-9000}:9000"
-      - "${MINIO_CONSOLE_PORT:-9001}:9001"
+      - "9000:9000"
+      - "9001:9001"
     volumes:
       - ./data/minio:/data
 
@@ -86,12 +85,12 @@ services:
     depends_on:
       - minio
     environment:
-      MINIO_ROOT_USER: ${MINIO_ROOT_USER:-easyflowadmin}
-      MINIO_ROOT_PASSWORD: ${MINIO_ROOT_PASSWORD:-easyflowadmin123}
-      MINIO_ENDPOINT: ${MINIO_ENDPOINT:-http://minio:9000}
-      MINIO_BUCKETS: ${MINIO_BUCKETS:-easyflow,milvus}
-      MINIO_PUBLIC_BUCKETS: ${MINIO_PUBLIC_BUCKETS:-easyflow}
-      MINIO_ALIAS: ${MINIO_ALIAS:-local}
+      MINIO_ROOT_USER: easyflowadmin
+      MINIO_ROOT_PASSWORD: easyflowadmin123
+      MINIO_ENDPOINT: http://minio:9000
+      MINIO_BUCKETS: easyflow,milvus
+      MINIO_PUBLIC_BUCKETS: easyflow
+      MINIO_ALIAS: local
     volumes:
       - ./scripts/minio/init-minio.sh:/scripts/init-minio.sh:ro
     entrypoint: ["/bin/sh", "/scripts/init-minio.sh"]
@@ -106,11 +105,11 @@ services:
     environment:
       ETCD_ENDPOINTS: etcd:2379
       COMMON_STORAGETYPE: minio
-      MINIO_ADDRESS: ${MILVUS_MINIO_ADDRESS:-minio:9000}
-      MINIO_ACCESS_KEY_ID: ${MINIO_ROOT_USER:-easyflowadmin}
-      MINIO_SECRET_ACCESS_KEY: ${MINIO_ROOT_PASSWORD:-easyflowadmin123}
+      MINIO_ADDRESS: minio:9000
+      MINIO_ACCESS_KEY_ID: easyflowadmin
+      MINIO_SECRET_ACCESS_KEY: easyflowadmin123
       MINIO_USE_SSL: "false"
-      MINIO_BUCKET_NAME: ${MILVUS_MINIO_BUCKET:-milvus}
+      MINIO_BUCKET_NAME: milvus
     depends_on:
       etcd:
         condition: service_started
@@ -119,7 +118,7 @@ services:
       minio-init:
         condition: service_completed_successfully
     ports:
-      - "${MILVUS_GRPC_PORT:-19530}:19530"
-      - "${MILVUS_HTTP_PORT:-9091}:9091"
+      - "19530:19530"
+      - "9091:9091"
     volumes:
       - ./data/milvus:/var/lib/milvus