CREATE TABLE IF NOT EXISTS categories ( id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, icon TEXT NOT NULL ); CREATE TABLE IF NOT EXISTS links ( id INTEGER PRIMARY KEY AUTOINCREMENT, category_id INTEGER NOT NULL, name TEXT NOT NULL, description TEXT NOT NULL, icon TEXT NOT NULL, url TEXT NOT NULL ); CREATE TABLE IF NOT EXISTS sessions ( id INTEGER PRIMARY KEY AUTOINCREMENT, session_id TEXT NOT NULL, expires_at TEXT NOT NULL );