Initial commit: virtual art gallery application.

Express API with PostgreSQL, React/Vite/Three.js frontend, and locally cached artwork images.

Co-authored-by: Cursor <cursoragent@cursor.com>

server/db.js

@@ -0,0 +1,16 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const pool = new Pool({
+  host: process.env.DB_HOST,
+  port: parseInt(process.env.DB_PORT || '5432'),
+  user: process.env.DB_USER,
+  password: process.env.DB_PASSWORD,
+  database: process.env.DB_NAME,
+});
+
+pool.on('error', (err) => {
+  console.error('Unexpected database error:', err);
+});
+
+module.exports = pool;