CREATE TABLE IF NOT EXISTS users (
    id BIGSERIAL PRIMARY KEY,
    first_name VARCHAR(255) NOT NULL,
    last_name VARCHAR(255) NOT NULL,
    email VARCHAR(255) UNIQUE NOT NULL,
    phone_number VARCHAR(20) UNIQUE NOT NULL,
    password TEXT NOT NULL,
    role VARCHAR(50) NOT NULL,
    verified BOOLEAN DEFAULT FALSE,
    created_at TIMESTAMP,
    updated_at TIMESTAMP
);
