enhance(backend): refine system account (#15530)

* wip

* wip

* wip

* Update SystemAccountService.ts

* Update 1740121393164-system-accounts.js

* Update DeleteAccountService.ts

* wip

* wip

* wip

* wip

* Update 1740121393164-system-accounts.js

* Update RepositoryModule.ts

* wip

* wip

* wip

* Update ApRendererService.ts

* wip

* wip

* Update SystemAccountService.ts

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* fix tests

* add print logs

* ログが長すぎて出てないかもしれない

* fix migration

* refactor

* fix fed-tests

* Update RelayService.ts

* merge

* Update user.test.ts

* chore: emit log

* fix: tweak sleep duration

* fix: exit 1

* fix: wait for misskey processes to become healthy

* fix: longer sleep for user deletion

* fix: make sleep longer again

* デッドロック解消の試み

https://github.com/misskey-dev/misskey/issues/15005

* Revert "デッドロック解消の試み"

This reverts commit 266141f66f.

* wip

* Update SystemAccountService.ts

---------

Co-authored-by: おさむのひと <46447427+samunohito@users.noreply.github.com>
Co-authored-by: zyoshoka <107108195+zyoshoka@users.noreply.github.com>

packages/backend/src/models/_.ts

@@ -56,6 +56,7 @@ import { MiRegistryItem } from '@/models/RegistryItem.js';
 import { MiRelay } from '@/models/Relay.js';
 import { MiSignin } from '@/models/Signin.js';
 import { MiSwSubscription } from '@/models/SwSubscription.js';
+import { MiSystemAccount } from '@/models/SystemAccount.js';
 import { MiUsedUsername } from '@/models/UsedUsername.js';
 import { MiUser } from '@/models/User.js';
 import { MiUserIp } from '@/models/UserIp.js';
@@ -171,6 +172,7 @@ export {
 	MiRelay,
 	MiSignin,
 	MiSwSubscription,
+	MiSystemAccount,
 	MiUsedUsername,
 	MiUser,
 	MiUserIp,
@@ -242,6 +244,7 @@ export type RegistryItemsRepository = Repository<MiRegistryItem> & MiRepository<
 export type RelaysRepository = Repository<MiRelay> & MiRepository<MiRelay>;
 export type SigninsRepository = Repository<MiSignin> & MiRepository<MiSignin>;
 export type SwSubscriptionsRepository = Repository<MiSwSubscription> & MiRepository<MiSwSubscription>;
+export type SystemAccountsRepository = Repository<MiSystemAccount> & MiRepository<MiSystemAccount>;
 export type UsedUsernamesRepository = Repository<MiUsedUsername> & MiRepository<MiUsedUsername>;
 export type UsersRepository = Repository<MiUser> & MiRepository<MiUser>;
 export type UserIpsRepository = Repository<MiUserIp> & MiRepository<MiUserIp>;