```

feat(database): 自动迁移表结构并优化数据库初始化函数

将 `AutoMigrate` 逻辑从各数据库初始化方法中提取至统一的 `NewDatabase` 方法内，
避免重复代码。同时修改 `Databases`、`Etcd`、`Memory` 和 `RedisCache` 函数签名，
使其返回实例而非通过参数传递，提高代码可读性和一致性。
```

database/new.go

@@ -34,6 +34,14 @@ func NewDatabase(driver string, dsn []string, options *types.SqlOptions) (db *go
 		return nil, err
 	}
 
+	// auto migrate table.
+	if len(MigrateTables) > 0 {
+		err = db.AutoMigrate(MigrateTables...)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	return db, nil
 }
 
@@ -74,13 +82,6 @@ func NewMysql(dsn []string, options *types.SqlOptions) (gormDb *gorm.DB, err err
 	// SetConnMaxLifetime 设置了连接可复用的最大时间。
 	sqlDB.SetConnMaxLifetime(options.ConnMaxLifetime)
 
-	if len(MigrateTables) > 0 {
-		err = gormDb.AutoMigrate(MigrateTables...)
-		if err != nil {
-			return nil, err
-		}
-	}
-
 	return gormDb, nil
 }
 
@@ -119,12 +120,5 @@ func NewPostgres(dsn []string, options *types.SqlOptions) (gormDb *gorm.DB, err
 	// SetConnMaxLifetime 设置了连接可复用的最大时间。
 	sqlDB.SetConnMaxLifetime(options.ConnMaxLifetime)
 
-	if len(MigrateTables) > 0 {
-		err = gormDb.AutoMigrate(MigrateTables...)
-		if err != nil {
-			return nil, err
-		}
-	}
-
 	return
 }

with/databases.go

@@ -9,7 +9,7 @@ import (
 	"gorm.io/gorm"
 )
 
-func Databases(cfg *conf.DBConf, db *gorm.DB, opts *types.SqlOptions) {
+func Databases(cfg *conf.DBConf, opts *types.SqlOptions) *gorm.DB {
 	if cfg == nil || len(cfg.Source) == 0 {
 		panic("No Database Source Found !")
 	}
@@ -18,10 +18,10 @@ func Databases(cfg *conf.DBConf, db *gorm.DB, opts *types.SqlOptions) {
 	print.Info("[BSM - %s] Databases: %v", vars.ServiceKey, cfg)
 
 	var err error
-	db, err = database.NewDatabase(cfg.Driver, cfg.Source, opts)
+	db, err := database.NewDatabase(cfg.Driver, cfg.Source, opts)
 	if err != nil {
 		print.Error("Database Init Failed !")
 		panic(err)
 	}
-	return
+	return db
 }

with/etcd.go

@@ -11,7 +11,7 @@ import (
 	clientv3 "go.etcd.io/etcd/client/v3"
 )
 
-func Etcd(cfg *conf.EtcdConf, cli *clientv3.Client) {
+func Etcd(cfg *conf.EtcdConf) (cli *clientv3.Client){
 	if cfg == nil || len(cfg.Endpoints) == 0 {
 		return
 	}

with/memory.go

@@ -9,7 +9,7 @@ import (
 	"github.com/allegro/bigcache/v3"
 )
 
-func Memory(cli *bigcache.BigCache, opts *bigcache.Config) {
+func Memory(opts *bigcache.Config) (cli *bigcache.BigCache) {
 	if opts == nil {
 		opts = &bigcache.Config{
 			Shards:             1024,
@@ -32,4 +32,5 @@ func Memory(cli *bigcache.BigCache, opts *bigcache.Config) {
 	}
 
 	print.Success("[BSM - %s] Memory Cache: Shards=%d, MaxEntrySize=%d", vars.ServiceKey, opts.Shards, opts.MaxEntrySize)
+	return
 }

with/redis.go

@@ -6,11 +6,13 @@ import (
 	"git.apinb.com/bsm-sdk/core/vars"
 )
 
-func RedisCache(cfg string, cli *redis.RedisClient) {
+func RedisCache(cfg string) (cli *redis.RedisClient) {
 	if cfg != "" {
 		cli = redis.New(cfg, vars.ServiceKey)
 
 		// print inform.
 		print.Info("[BSM - %s] Cache: %s, DBIndex: %d", vars.ServiceKey, cfg, cli.DB)
 	}
+
+	return
 }