feat: 迁移订阅表字段，为用户认证方法添加软删除功能及索引，并调整 Docker Compose 中 MySQL 端口映射。

initialize/schema_compat.go

@@ -121,6 +121,25 @@ func EnsureSchemaCompatibility(ctx *svc.ServiceContext) error {
 			column: "status",
 			ddl:    "ALTER TABLE `redemption_code` ADD COLUMN `status` TINYINT NOT NULL DEFAULT 1 COMMENT 'Status: 1=enabled, 0=disabled';",
 		},
+		{
+			table:  "user_auth_methods",
+			column: "deleted_at",
+			ddl:    "ALTER TABLE `user_auth_methods` ADD COLUMN `deleted_at` DATETIME(3) DEFAULT NULL COMMENT 'Deletion Time';",
+		},
+	}
+
+	// Index patches: ensure critical indexes exist
+	type schemaIndexPatch struct {
+		table string
+		index string
+		ddl   string
+	}
+	indexPatches := []schemaIndexPatch{
+		{
+			table: "user_auth_methods",
+			index: "idx_user_deleted_at",
+			ddl:   "CREATE INDEX `idx_user_deleted_at` ON `user_auth_methods` (`user_id`, `deleted_at`);",
+		},
 	}
 
 	for _, patch := range tablePatches {
@@ -159,6 +178,27 @@ func EnsureSchemaCompatibility(ctx *svc.ServiceContext) error {
 		logger.Infof("[SchemaCompat] added missing column: %s.%s", patch.table, patch.column)
 	}
 
+	for _, patch := range indexPatches {
+		tblExists, err := tableExists(ctx.DB, patch.table)
+		if err != nil {
+			return errors.Wrapf(err, "check table %s failed", patch.table)
+		}
+		if !tblExists {
+			continue
+		}
+		exists, err := indexExists(ctx.DB, patch.table, patch.index)
+		if err != nil {
+			return errors.Wrapf(err, "check index %s.%s failed", patch.table, patch.index)
+		}
+		if exists {
+			continue
+		}
+		if err = ctx.DB.Exec(patch.ddl).Error; err != nil {
+			return errors.Wrapf(err, "create index %s.%s failed", patch.table, patch.index)
+		}
+		logger.Infof("[SchemaCompat] created missing index: %s.%s", patch.table, patch.index)
+	}
+
 	return nil
 }
 
@@ -184,6 +224,19 @@ func columnExists(db *gorm.DB, table, column string) (bool, error) {
 	return count > 0, nil
 }
 
+func indexExists(db *gorm.DB, table, index string) (bool, error) {
+	var count int64
+	err := db.Raw(
+		"SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ? AND INDEX_NAME = ?",
+		table,
+		index,
+	).Scan(&count).Error
+	if err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}
+
 func _schemaCompatDebug(table, column string) string {
 	if column == "" {
 		return table