ALTER TABLE users ADD COLUMN IF NOT EXISTS email_verified BOOLEAN NOT NULL DEFAULT FALSE;

CREATE TABLE IF NOT EXISTS email_tokens (
    id         BIGSERIAL PRIMARY KEY,
    user_id    BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    token      TEXT NOT NULL UNIQUE,
    kind       TEXT NOT NULL,
    expires_at BIGINT NOT NULL,
    created_at BIGINT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_email_tokens_token ON email_tokens(token);