Bootstrap Error: Database connection failed: Could not connect to database: SQLSTATE[HY000] [1045] Access denied for user 'admin254_invento'@'localhost' (using password: YES)

Configuration:
- Host: localhost
- Database: admin254_invento
- Username: admin254_invento

Common causes:
1. MySQL PDO extension not installed (run: php -m | grep pdo_mysql)
2. Database doesn't exist
3. Wrong credentials in .env file
4. MySQL service not running
<br><pre>#0 /home/admin254/Inventory/home/admin254/Inventory/app/Core/Container/Container.php(226): {closure}(Object(App\Core\Container\Container), Array)
#1 /home/admin254/Inventory/home/admin254/Inventory/app/Core/Container/Container.php(163): App\Core\Container\Container->build(Object(Closure), Array)
#2 /home/admin254/Inventory/home/admin254/Inventory/app/Core/Container/Container.php(140): App\Core\Container\Container->resolve('App\\Core\\Databa...', Array)
#3 /home/admin254/Inventory/home/admin254/Inventory/bootstrap/app.php(70): App\Core\Container\Container->make('App\\Core\\Databa...')
#4 /home/admin254/Inventory/home/admin254/Inventory/bootstrap/autoload.php(29): require('/home/admin254/...')
#5 /home/admin254/Inventory/home/admin254/Inventory/public/index.php(24): require('/home/admin254/...')
#6 {main}</pre>