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/test/unit/queue/processors/CheckModeratorsActivityProcessorService.ts

@@ -316,7 +316,7 @@ describe('CheckModeratorsActivityProcessorService', () => {
 				createUser({}, { email: 'user2@example.com', emailVerified: false }),
 				createUser({}, { email: null, emailVerified: false }),
 				createUser({}, { email: 'user4@example.com', emailVerified: true }),
-				createUser({ isRoot: true }, { email: 'root@example.com', emailVerified: true }),
+				createUser({}, { email: 'root@example.com', emailVerified: true }),
 			]);
 
 			mockModeratorRole([user1, user2, user3, root]);
@@ -349,7 +349,7 @@ describe('CheckModeratorsActivityProcessorService', () => {
 				createUser({}, { email: 'user2@example.com', emailVerified: false }),
 				createUser({}, { email: null, emailVerified: false }),
 				createUser({}, { email: 'user4@example.com', emailVerified: true }),
-				createUser({ isRoot: true }, { email: 'root@example.com', emailVerified: true }),
+				createUser({}, { email: 'root@example.com', emailVerified: true }),
 			]);
 
 			mockModeratorRole([user1, user2, user3, root]);