feat: implement core dispensing, identity, and integration modules with authentication middleware

check_db.js

@@ -0,0 +1,19 @@
+const { pool } = require('./src/db/pool');
+
+(async () => {
+  try {
+    const rx = await pool.query(
+      'SELECT id, tenant_id, status, created_at, extracted_data FROM prescriptions ORDER BY created_at DESC'
+    );
+    console.log('Prescriptions:', JSON.stringify(rx.rows, null, 2));
+
+    const users = await pool.query(
+      'SELECT id, username, role, pharmacy_name, tenant_id FROM users'
+    );
+    console.log('Users:', JSON.stringify(users.rows, null, 2));
+  } catch (err) {
+    console.error('Error executing query:', err);
+  } finally {
+    process.exit();
+  }
+})();