feat: add accounts and movies tables in migrations

- Created migration for accounts table with fields: id, username, password, role_id, created_at, updated_at.
- Created migration for movies table with fields: id, title, overview, poster_path, backdrop_path, release_date, tmdb_id.

refactor: update package.json scripts and dependencies

- Changed dev script to use bun instead of tsx.
- Added build:migrate script for migration.
- Updated devDependencies for bun and oxlint.

fix: refactor database connection and migration execution

- Updated PgDatabase to use SQL from bun.
- Refactored migration execution logic to read SQL files and execute them.

feat: implement account creation and validation logic

- Updated AccountEntity to use username instead of email.
- Added validation for username format and password strength.
- Implemented account repository methods for finding by username and inserting accounts.

test: add tests for account entity, repository, and service

- Created tests for AccountEntity to validate username and password.
- Added tests for AccountRepository to ensure correct database interactions.
- Implemented tests for AccountService to validate registration and login logic.

chore: remove outdated tests and files

- Deleted old tests related to email-based account management.
- Cleaned up unused imports and files to streamline the codebase.

tests/account/AccountRepository.test.ts

@@ -0,0 +1,74 @@
+import { describe, it, expect, beforeEach, afterEach } from "bun:test";
+import AccountRepository from "../../src/domain/account/repository/AccoutRepository";
+import { AccountEntity } from "../../src/domain/account/entity/AccountEntity";
+import { initTestDatabase } from "../utils";
+import type { DatabaseInterface } from "../../src/database/DatabaseInterface";
+
+describe("AccountRepository", () => {
+  let accountRepository: AccountRepository;
+  let database: DatabaseInterface;
+
+  beforeEach(async () => {
+    database = await initTestDatabase();
+    accountRepository = new AccountRepository(database);
+  });
+
+  afterEach(async () => {
+    await database?.close();
+  });
+
+  describe("findByUsername", () => {
+    it("should return account when found", async () => {
+      const username = "testaccount";
+
+      const createAccount = await AccountEntity.create(username, "password123");
+      await accountRepository.insert(createAccount);
+
+      const result = await accountRepository.findByUsername(username);
+
+      expect(result).toBeInstanceOf(AccountEntity);
+      expect(result?.username).toBe(username);
+    });
+
+    it("should return null when account not found", async () => {
+      const username = "nonexistentaccount";
+      const result = await accountRepository.findByUsername(username);
+
+      expect(result).toBeNull();
+    });
+  });
+
+  describe("findById", () => {
+    it("should return account when found", async () => {
+      const createAccount = await AccountEntity.create(
+        "test@example.com",
+        "password123",
+      );
+
+      const newId = await accountRepository.insert(createAccount);
+      const result = await accountRepository.findById(newId);
+
+      expect(result).toBeInstanceOf(AccountEntity);
+      expect(result?.id).toBe(newId);
+    });
+
+    it("should return null when account not found", async () => {
+      const id = 999;
+      const result = await accountRepository.findById(id);
+
+      expect(result).toBeNull();
+    });
+  });
+
+  describe("insert", () => {
+    it("should insert account successfully", async () => {
+      const account = await AccountEntity.create(
+        "test@example.com",
+        "password123",
+      );
+      const result = await accountRepository.insert(account);
+
+      expect(result).toBeGreaterThan(0);
+    });
+  });
+});