feat: add password change, class unenroll, and optional notify flags

Let admins skip SMS on user, class, and invoice actions, and let users change their own password with the current one.

components/users/userService.js

@@ -11,6 +11,7 @@ const { generateUsername, generateSimplePassword } = require('../../utils/creden
 const { sendAccountCreatedSms } = require('../../utils/senders/smsMessages');
 const logger = require('../../utils/logger');
 const { mergeFullName, normalizeGender } = require('../../utils/userProfile');
+const { pickNotifyFlags } = require('../../utils/notifyFlags');
 
 const normalizeAdminNotes = (value) => {
   if (value == null) return undefined;
@@ -175,7 +176,9 @@ const createUserAdmin = async (body) => {
   });
 
   try {
-    await sendAccountCreatedSms(profile.phoneNumber, username, plainPassword, user._id);
+    if (pickNotifyFlags(body).sms) {
+      await sendAccountCreatedSms(profile.phoneNumber, username, plainPassword, user._id);
+    }
   } catch (err) {
     logger.error(`[createUserAdmin] Account SMS failed for ${profile.phoneNumber}: ${err.message}`);
   }