const { Pool } = require('pg'); const pool = new Pool({ connectionString: 'postgres://postgres:csh%402018@localhost:5432/ai_pharmacy' }); async function run() { try { await pool.query('ALTER TABLE stock_movements ADD COLUMN IF NOT EXISTS reason_code VARCHAR(100)'); await pool.query('ALTER TABLE stock_movements ADD COLUMN IF NOT EXISTS notes TEXT'); console.log('Successfully added columns.'); } catch (err) { console.error('Error:', err); } finally { pool.end(); } } run();