feat: 完善后端脚手架基础能力

database/migration.go

@@ -12,7 +12,8 @@ import (
 
 // MigrationConfig 迁移配置
 type MigrationConfig struct {
-	Environment string // local, production
+	Environment string // 例如 local_postgres、production_mysql
+	Directory   string // 按数据库方言隔离的迁移目录
 	Timeout     int    // 超时时间（秒）
 }
 
@@ -77,11 +78,15 @@ func (m *MigrationManager) GenerateMigration(name string) error {
 }
 
 // ApplyMigrations 应用迁移
-func (m *MigrationManager) ApplyMigrations() error {
+func (m *MigrationManager) ApplyMigrations(dryRun bool) error {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(m.config.Timeout)*time.Second)
 	defer cancel()
 
-	cmd := exec.CommandContext(ctx, "atlas", "migrate", "apply", "--env", m.config.Environment)
+	args := []string{"migrate", "apply", "--env", m.config.Environment}
+	if dryRun {
+		args = append(args, "--dry-run")
+	}
+	cmd := exec.CommandContext(ctx, "atlas", args...)
 	output, err := cmd.CombinedOutput()
 
 	if err != nil {
@@ -91,7 +96,9 @@ func (m *MigrationManager) ApplyMigrations() error {
 		return fmt.Errorf("应用迁移失败: %w", err)
 	}
 
-	m.logger.Info("迁移应用成功", zap.String("output", string(output)))
+	m.logger.Info("迁移应用成功",
+		zap.Bool("dry_run", dryRun),
+		zap.String("output", string(output)))
 	return nil
 }
 
@@ -126,7 +133,10 @@ func EnsureAtlasInstalled() error {
 
 // InitMigrationDirectory 初始化迁移目录
 func (m *MigrationManager) InitMigrationDirectory() error {
-	migrationDir := "migrations"
+	migrationDir := m.config.Directory
+	if migrationDir == "" {
+		migrationDir = "migrations"
+	}
 
 	// 检查目录是否存在
 	if _, err := os.Stat(migrationDir); os.IsNotExist(err) {