refactor: organize imports and enhance formatting across backend files

Optimized import order, applied consistent formatting, and improved readability in various modules, including `contents`, `media`, and `auth` services.

backend/src/media/media.service.ts

@@ -1,3 +1,7 @@
+import { readFile, unlink, writeFile } from "node:fs/promises";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { Readable } from "node:stream";
 import {
 	BadRequestException,
 	Injectable,
@@ -7,10 +11,6 @@ import {
 import { ConfigService } from "@nestjs/config";
 import * as NodeClam from "clamscan";
 import ffmpeg from "fluent-ffmpeg";
-import { readFile, unlink, writeFile } from "node:fs/promises";
-import { tmpdir } from "node:os";
-import { join } from "node:path";
-import { Readable } from "node:stream";
 import sharp from "sharp";
 import { v4 as uuidv4 } from "uuid";
 import type {
@@ -19,7 +19,9 @@ import type {
 } from "./interfaces/media.interface";
 
 interface ClamScanner {
-	scanStream(stream: Readable): Promise<{ isInfected: boolean; viruses: string[] }>;
+	scanStream(
+		stream: Readable,
+	): Promise<{ isInfected: boolean; viruses: string[] }>;
 }
 
 @Injectable()
@@ -34,7 +36,7 @@ export class MediaService {
 
 	private async initClamScan() {
 		try {
-			// @ts-ignore
+			// @ts-expect-error
 			const scanner = await new NodeClam().init({
 				clamdscan: {
 					host: this.configService.get<string>("CLAMAV_HOST", "localhost"),