test: server 测试共用建库与假引擎,sse-pg 归入串行组

- 新增 apps/server/test/support/{pg,engine}.ts:测试库地址、可用性探测、schema 咨询锁、
  建 schema + 加锁迁移 + 删除、可选去重的假引擎;6 份 harness 改用它(acquisition-organize 与
  file-manager 原先迁移不加锁,并行下有冲突隐患,一并修正)
- sse-pg 起子进程,并行下子进程启动超时,归入 serial
- 修正 b61335e 挪动 / 改名测试后遗留的 import 排序与格式(当时 lint 检查经管道被吞掉退出码)

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/server/test/subscriptions/subscriptions-v2.test.ts

@@ -2,6 +2,7 @@ import type { DB } from "@umt/db";
 import { makeTorrent } from "@umt/testkit";
 import type { Kysely } from "kysely";
 import { afterAll, beforeAll, describe, expect, it } from "vitest";
+import { evaluateAcquisition } from "../../src/modules/acquisition-organize/services/acquisition.ts";
 import {
   createHarness,
   fakeDisk,
@@ -11,7 +12,6 @@ import {
   seedEntity,
   seedRelease,
 } from "../acquisition-organize/harness.ts";
-import { evaluateAcquisition } from "../../src/modules/acquisition-organize/services/acquisition.ts";
 
 // W9-E 订阅重做后端:总览分组/排序/计数、覆盖矩阵(单集/季包/多版本/在途/临时单元/电影版本)、
 // 多版本自动补全(开关、规则组继承、补全预算、手动补全)、表单字段与 MP/旧字段兼容、暂停/恢复/重新订阅/批量/排序。