chore: rename fundamentals to base (#9119)

packages/backend/server/src/base/mutex/index.ts

@@ -0,0 +1,14 @@
+import { Global, Module } from '@nestjs/common';
+
+import { Locker } from './local-lock';
+import { Mutex, RequestMutex } from './mutex';
+
+@Global()
+@Module({
+  providers: [Mutex, RequestMutex, Locker],
+  exports: [Mutex, RequestMutex],
+})
+export class MutexModule {}
+
+export { Locker, Mutex, RequestMutex };
+export { type Locker as ILocker, Lock } from './lock';