Update formatting rules to enforce consistent tab-based indentation across the backend

backend/biome.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.2.0/schema.json",
+	"$schema": "https://biomejs.dev/schemas/2.3.11/schema.json",
 	"vcs": {
 		"enabled": true,
 		"clientKind": "git",
@@ -12,7 +12,7 @@
 	"formatter": {
 		"enabled": true,
 		"indentStyle": "tab",
-    "indentWidth": 2
+		"indentWidth": 1
 	},
 	"linter": {
 		"enabled": true,

backend/src/app.controller.spec.ts

@@ -1,8 +1,8 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
+import { Test, TestingModule } from "@nestjs/testing";
+import { AppController } from "./app.controller";
+import { AppService } from "./app.service";
 
-describe('AppController', () => {
+describe("AppController", () => {
 	let appController: AppController;
 
 	beforeEach(async () => {
@@ -14,9 +14,9 @@ describe('AppController', () => {
 		appController = app.get<AppController>(AppController);
 	});
 
-  describe('root', () => {
+	describe("root", () => {
 		it('should return "Hello World!"', () => {
-      expect(appController.getHello()).toBe('Hello World!');
+			expect(appController.getHello()).toBe("Hello World!");
 		});
 	});
 });

backend/src/app.controller.ts

@@ -1,5 +1,5 @@
-import { Controller, Get } from '@nestjs/common';
-import { AppService } from './app.service';
+import { Controller, Get } from "@nestjs/common";
+import { AppService } from "./app.service";
 
 @Controller()
 export class AppController {

backend/src/app.module.ts

@@ -1,6 +1,6 @@
-import { Module } from '@nestjs/common';
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
+import { Module } from "@nestjs/common";
+import { AppController } from "./app.controller";
+import { AppService } from "./app.service";
 
 @Module({
 	imports: [],

backend/src/app.service.ts

@@ -1,8 +1,8 @@
-import { Injectable } from '@nestjs/common';
+import { Injectable } from "@nestjs/common";
 
 @Injectable()
 export class AppService {
 	getHello(): string {
-    return 'Hello World!';
+		return "Hello World!";
 	}
 }

backend/src/main.ts

@@ -1,5 +1,5 @@
-import { NestFactory } from '@nestjs/core';
-import { AppModule } from './app.module';
+import { NestFactory } from "@nestjs/core";
+import { AppModule } from "./app.module";
 
 async function bootstrap() {
 	const app = await NestFactory.create(AppModule);

backend/test/app.e2e-spec.ts

@@ -1,10 +1,10 @@
-import { Test, TestingModule } from '@nestjs/testing';
-import { INestApplication } from '@nestjs/common';
-import request from 'supertest';
-import { App } from 'supertest/types';
-import { AppModule } from './../src/app.module';
+import { Test, TestingModule } from "@nestjs/testing";
+import { INestApplication } from "@nestjs/common";
+import request from "supertest";
+import { App } from "supertest/types";
+import { AppModule } from "../src/app.module";
 
-describe('AppController (e2e)', () => {
+describe("AppController (e2e)", () => {
 	let app: INestApplication<App>;
 
 	beforeEach(async () => {
@@ -16,10 +16,10 @@ describe('AppController (e2e)', () => {
 		await app.init();
 	});
 
-  it('/ (GET)', () => {
+	it("/ (GET)", () => {
 		return request(app.getHttpServer())
-      .get('/')
+			.get("/")
 			.expect(200)
-      .expect('Hello World!');
+			.expect("Hello World!");
 	});
 });