chore: migrate backend to monorepo apps and biome

apps/tasks/src/tasks.module.ts

@@ -0,0 +1,10 @@
+import { Module } from '@nestjs/common';
+import { TasksController } from './tasks.controller';
+import { TasksService } from './tasks.service';
+
+@Module({
+  imports: [],
+  controllers: [TasksController],
+  providers: [TasksService],
+})
+export class TasksModule {}