Is there a way to get the admin password?

secure-code-4.rb

require 'sinatra'
require 'mysql2'
require 'active_record'

configure { set :environment, :production }

ActiveRecord::Base.establish_connection(
  adapter:  'mysql2',
  host:     ENV['DB_HOST'],
  username: ENV['DB_USER'],
  password: ENV['DB_PASS'],
  database: ENV['DB_NAME']
)

unless ActiveRecord::Base.connection.table_exists?(:users)
  ActiveRecord::Base.connection.create_table :users, id: false do |t|
    t.primary_key :user_id, auto_increment: true
    t.string :email
    t.string :password
  end

  ActiveRecord::Base.connection.add_index :users, :email, unique: true
  ActiveRecord::Base.connection.execute("INSERT INTO users (email, password) VALUES ('[email protected]', '#{ENV['ADMIN_PASSWORD']}')")
end

get '/user' do
  user_id = params[:user_id]

  if user_id.match?(/^\d+$/)
    user_result = ActiveRecord::Base.connection.execute("SELECT * FROM users WHERE user_id = #{user_id}").first
    user_result ? "#{user_result[1]} (ID: #{user_result[0]})" : "User not found"
  else
    "Invalid user ID format"
  end
end