CREATE TABLE settings ( id TEXT NOT NULL PRIMARY KEY, model TEXT DEFAULT 'settings' NOT NULL, created_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL, updated_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL, follow_redirects BOOLEAN DEFAULT TRUE NOT NULL, validate_certificates BOOLEAN DEFAULT TRUE NOT NULL, request_timeout INTEGER DEFAULT 0 NOT NULL, theme TEXT DEFAULT 'default' NOT NULL, appearance TEXT DEFAULT 'system' NOT NULL );