feat(server): make a singleton global mutex service (#7900)

packages/backend/server/src/core/selfhost/controller.ts

@@ -5,7 +5,7 @@ import {
   ActionForbidden,
   EventEmitter,
   InternalServerError,
-  MutexService,
+  Mutex,
   PasswordRequired,
 } from '../../fundamentals';
 import { AuthService, Public } from '../auth';
@@ -23,7 +23,7 @@ export class CustomSetupController {
     private readonly user: UserService,
     private readonly auth: AuthService,
     private readonly event: EventEmitter,
-    private readonly mutex: MutexService,
+    private readonly mutex: Mutex,
     private readonly server: ServerService
   ) {}
 

packages/backend/server/src/core/workspaces/resolvers/workspace.ts

@@ -20,7 +20,7 @@ import {
   InternalServerError,
   MailService,
   MemberQuotaExceeded,
-  MutexService,
+  RequestMutex,
   Throttle,
   TooManyRequest,
   UserNotFound,
@@ -57,7 +57,7 @@ export class WorkspaceResolver {
     private readonly users: UserService,
     private readonly event: EventEmitter,
     private readonly blobStorage: WorkspaceBlobStorage,
-    private readonly mutex: MutexService
+    private readonly mutex: RequestMutex
   ) {}
 
   @ResolveField(() => Permission, {