-- Add email verification and password reset columns to users table
ALTER TABLE users
    ADD COLUMN IF NOT EXISTS email_verification_token VARCHAR(255),
    ADD COLUMN IF NOT EXISTS email_verification_expires_at TIMESTAMPTZ,
    ADD COLUMN IF NOT EXISTS reset_password_token VARCHAR(255),
    ADD COLUMN IF NOT EXISTS reset_password_expires_at TIMESTAMPTZ;

-- Add index for token lookups
CREATE INDEX IF NOT EXISTS idx_users_email_verification_token ON users(email_verification_token);
CREATE INDEX IF NOT EXISTS idx_users_reset_password_token ON users(reset_password_token);