fix: 迁移脚本添加自增序列重置+改进回滚说明

scripts/migrate-prod-to-dev.sh

@@ -89,6 +89,15 @@ log "导入数据到 ${DST_DB}..."
 docker exec -i "$DB_CONTAINER" psql -U "$DB_USER" -d "$DST_DB" < "$TMP_SQL" 2>> "$LOG_FILE"
 log "  导入完成 ✅"
 
+# ---------- 步骤 5: 重置自增序列 ----------
+log "重置自增序列..."
+docker exec "$DB_CONTAINER" psql -U "$DB_USER" -d "$DST_DB" -tAc "
+SELECT SETVAL('users_id_seq', COALESCE((SELECT MAX(id) FROM users), 1));
+SELECT SETVAL('weather_data_id_seq', COALESCE((SELECT MAX(id) FROM weather_data), 1));
+SELECT SETVAL('payment_orders_id_seq', COALESCE((SELECT MAX(id) FROM payment_orders), 1));
+" 2>> "$LOG_FILE"
+log "  序列重置完成 ✅"
+
 # ---------- 清理 ----------
 rm -f "$TMP_SQL"
 
@@ -110,4 +119,5 @@ echo ""
 echo "日志: ${LOG_FILE}"
 echo "备份: ${BACKUP_DIR}/${DST_DB}_pre_migration_*.dump"
 echo ""
-echo "⚠️  如需回滚：gunzip -c ${BACKUP_DIR}/*.dump.gz | docker exec -i ... pg_restore"
+echo "⚠️  如需回滚：
+  docker exec -i ${DB_CONTAINER} pg_restore -U ${DB_USER} -d ${DST_DB} --clean \n    < ${BACKUP_DIR}/${DST_DB}_pre_migration_*.dump"