ALTER TABLE users ADD COLUMN is_blocked TINYINT(1) DEFAULT 0;
CREATE TABLE IF NOT EXISTS admin_settings (id INT PRIMARY KEY, admin_user VARCHAR(100), admin_pass VARCHAR(255));
INSERT INTO admin_settings (id, admin_user, admin_pass) VALUES (1, 'admin', 'admin123');
CREATE TABLE IF NOT EXISTS password_resets (id INT AUTO_INCREMENT PRIMARY KEY, email VARCHAR(100), code VARCHAR(6), expires_at TIMESTAMP);