CREATE TABLE IF NOT EXISTS users ( id UUID PRIMARY KEY DEFAULT gen_random_uuid(), email VARCHAR(255) UNIQUE NOT NULL, name VARCHAR(255) NOT NULL, password_hash VARCHAR(255) NOT NULL, created_at TIMESTAMPTZ NOT NULL DEFAULT NOW() ); CREATE TABLE IF NOT EXISTS sessions ( id UUID PRIMARY KEY DEFAULT gen_random_uuid(), user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE, token_id UUID UNIQUE NOT NULL, is_revoked BOOLEAN NOT NULL DEFAULT FALSE, expires_at TIMESTAMPTZ NOT NULL, created_at TIMESTAMPTZ NOT NULL DEFAULT NOW() );