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chore: remove outdated tests and files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.

migrations/20240703103050_accounts.up.sql

@@ -0,0 +1,10 @@
+CREATE TABLE IF NOT EXISTS public.accounts (
+  id integer NOT NULL GENERATED ALWAYS AS IDENTITY,
+  username text NOT NULL,
+  password text NOT NULL,
+  role_id smallint NOT NULL DEFAULT '1',
+  created_at timestamp without time zone NOT NULL DEFAULT now (),
+  updated_at timestamp without time zone NOT NULL DEFAULT now (),
+  CONSTRAINT accounts_pkey PRIMARY KEY (id),
+  CONSTRAINT accounts_username_key UNIQUE (username)
+);