feat: add scripts to create participants and users tables in the database

scripts/create_users_table.js

@@ -0,0 +1,34 @@
+const { Pool } = require('pg');
+require('dotenv').config();
+
+const createTableQuery = `
+CREATE TABLE IF NOT EXISTS users (
+    id SERIAL PRIMARY KEY,
+    email VARCHAR(255) UNIQUE NOT NULL,
+    name VARCHAR(255),
+    user_type VARCHAR(50) DEFAULT 'audience' NOT NULL
+);
+`;
+
+async function createTable() {
+    const pool = new Pool({
+        connectionString: process.env.DATABASE_URL,
+    });
+
+    try {
+        console.log('Connecting to the database...');
+        const client = await pool.connect();
+
+        console.log('Creating users table if it does not exist...');
+        await client.query(createTableQuery);
+
+        console.log('Users table created or already exists.');
+        client.release();
+    } catch (error) {
+        console.error('Error creating users table:', error);
+    } finally {
+        await pool.end();
+    }
+}
+
+createTable();