feat: add pending student registration flow and pricing APIs.

Support public class lookup, user provisioning, installment pricing, and admin approval before final enrollment.

constants/permissions.js

@@ -86,7 +86,11 @@ const PERMISSIONS = {
 
   // Contact inquiries (website form)
   CONTACT_INQUIRIES_READ: 'contact_inquiries:read',
-  CONTACT_INQUIRIES_UPDATE: 'contact_inquiries:update'
+  CONTACT_INQUIRIES_UPDATE: 'contact_inquiries:update',
+
+  // Pending student registrations
+  PENDING_STUDENTS_READ: 'pending_students:read',
+  PENDING_STUDENTS_UPDATE: 'pending_students:update'
 };
 
 const ALL_PERMISSIONS = Object.values(PERMISSIONS);

constants/registration.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const FULL_PAYMENT_DISCOUNT = 500_000;
+const CLASS_REQUEST_DEPOSIT_RATE = 0.10;
+
+module.exports = {
+  FULL_PAYMENT_DISCOUNT,
+  CLASS_REQUEST_DEPOSIT_RATE
+};