feat: 归档旧迁移文件，创建初始化数据迁移和重置脚本

migrations/archive/000098_backfill_asset_wallets.down.sql

@@ -0,0 +1,8 @@
+-- 回滚：删除补建的空钱包（仅删除余额为0且无交易记录的钱包）
+DELETE FROM tb_asset_wallet
+WHERE balance = 0
+  AND frozen_balance = 0
+  AND deleted_at IS NULL
+  AND id NOT IN (
+    SELECT DISTINCT asset_wallet_id FROM tb_asset_wallet_transaction WHERE deleted_at IS NULL
+  );