add moderation logs for many endpoints

- `/admin/delete-all-files-of-a-user`
- `/admin/nsfw-user`
- `/admin/unnsfw-user`
- `/admin/silence-user`
- `/admin/unsilence-user`
- `/admin/accounts/create`
- `/admin/drive/clean-remote-files`
- `/admin/drive/cleanup`
- `/admin/emoji/set-category-bulk`
- `/admin/emoji/set-license-bulk`
- `/admin/emoji/set-aliases-bulk`
- `/admin/emoji/add-aliases-bulk`
- `/admin/emoji/remove-aliases-bulk`
- `/admin/emoji/import-zip`
- `/admin/federation/delete-all-files`
- `/admin/federation/remove-all-following`
- `/admin/promo/create`
- `/admin/relay/add`
- `/admin/relay/remove`

packages/backend/src/server/api/endpoints/admin/accounts/create.ts

@@ -15,6 +15,7 @@ import type { Config } from '@/config.js';
 import { ApiError } from '@/server/api/error.js';
 import { Packed } from '@/misc/json-schema.js';
 import { RoleService } from '@/core/RoleService.js';
+import { ModerationLogService } from '@/core/ModerationLogService.js';
 
 export const meta = {
 	tags: ['admin'],
@@ -96,6 +97,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private userEntityService: UserEntityService,
 		private signupService: SignupService,
 		private instanceActorService: InstanceActorService,
+		private readonly moderationLogService: ModerationLogService,
 	) {
 		super(meta, paramDef, async (ps, _me, token) => {
 			const me = _me ? await this.usersRepository.findOneByOrFail({ id: _me.id }) : null;
@@ -137,6 +139,13 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				approved: true,
 			});
 
+			if (me) {
+				await this.moderationLogService.log(me, 'createAccount', {
+					userId: account.id,
+					userUsername: account.username,
+				});
+			}
+
 			const res = await this.userEntityService.pack(account, account, {
 				schema: 'MeDetailed',
 				includeSecrets: true,