refactor: remove unused tests, mocks, and outdated e2e configurations

Deleted unused e2e tests, mocks (`cuid2`, `jose`, `ml-kem`, `sha3`), and their associated jest configurations. Simplified services by ensuring proper dependency imports, resolving circular references, and improving TypeScript type usage for enhanced maintainability and testability. Upgraded Dockerfile base image to match new development standards.

backend/src/contents/repositories/contents.repository.ts

@@ -6,9 +6,9 @@ import {
 	exists,
 	ilike,
 	isNull,
-	sql,
 	lte,
 	type SQL,
+	sql,
 } from "drizzle-orm";
 import { DatabaseService } from "../../database/database.service";
 import {
@@ -113,10 +113,7 @@ export class ContentsRepository {
 						.select()
 						.from(favorites)
 						.where(
-							and(
-								eq(favorites.contentId, contents.id),
-								eq(favorites.userId, userId),
-							),
+							and(eq(favorites.contentId, contents.id), eq(favorites.userId, userId)),
 						),
 				),
 			);
@@ -143,7 +140,6 @@ export class ContentsRepository {
 				author: {
 					id: users.uuid,
 					username: users.username,
-					avatarUrl: users.avatarUrl,
 				},
 				category: {
 					id: categories.id,
@@ -173,18 +169,13 @@ export class ContentsRepository {
 
 		return results.map((r) => ({
 			...r,
-			tags: tagsForContents
-				.filter((t) => t.contentId === r.id)
-				.map((t) => t.name),
+			tags: tagsForContents.filter((t) => t.contentId === r.id).map((t) => t.name),
 		}));
 	}
 
 	async create(data: NewContentInDb & { userId: string }, tagNames?: string[]) {
 		return await this.databaseService.db.transaction(async (tx) => {
-			const [newContent] = await tx
-				.insert(contents)
-				.values(data)
-				.returning();
+			const [newContent] = await tx.insert(contents).values(data).returning();
 
 			if (tagNames && tagNames.length > 0) {
 				for (const tagName of tagNames) {
@@ -325,10 +316,7 @@ export class ContentsRepository {
 						.select()
 						.from(favorites)
 						.where(
-							and(
-								eq(favorites.contentId, contents.id),
-								eq(favorites.userId, userId),
-							),
+							and(eq(favorites.contentId, contents.id), eq(favorites.userId, userId)),
 						),
 				),
 			);
@@ -377,7 +365,12 @@ export class ContentsRepository {
 	async purgeSoftDeleted(before: Date) {
 		return await this.databaseService.db
 			.delete(contents)
-			.where(and(sql`${contents.deletedAt} IS NOT NULL`, lte(contents.deletedAt, before)))
+			.where(
+				and(
+					sql`${contents.deletedAt} IS NOT NULL`,
+					lte(contents.deletedAt, before),
+				),
+			)
 			.returning();
 	}
 }