feat(platform-objects): surface phone number in create_user result dialog

The create-user response's `user` object carries `phoneNumber` only for
phone-based accounts (admin-user-endpoints.ts builds it conditionally).
Declaring it is safe now that objectui's ActionResultDialog skips fields
whose path is absent from the payload — email-only users see no dirty
Phone Number row, and (same mechanism) manually-set passwords no longer
render an undefined Temporary Password row.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: baozhoutao

.changeset/create-user-result-dialog-phone.md

@@ -0,0 +1,12 @@
+---
+'@objectstack/platform-objects': minor
+---
+
+feat(platform-objects): surface phone number in the create_user result dialog
+
+`sys_user`'s `create_user` action now declares `user.phoneNumber` in its
+`resultDialog.fields`, so admins creating phone-based accounts see the
+sign-in phone number alongside the email and temporary password. The
+create-user response carries `phoneNumber` only for phone-based users;
+objectui's ActionResultDialog skips declared fields whose path is absent
+from the payload, so email-only users see no extra row.

packages/platform-objects/src/identity/sys-user.object.ts

@@ -187,7 +187,11 @@ export const SysUser = ObjectSchema.create({
           'Copy the temporary password now — it is shown only once and never stored.',
         acknowledge: 'I have saved this password',
         fields: [
+          // The dialog skips fields whose path is absent from the response, so
+          // conditional keys are safe to declare: phoneNumber only exists for
+          // phone-based users, temporaryPassword only when the server minted one.
           { path: 'user.email', label: 'Email', format: 'text' },
+          { path: 'user.phoneNumber', label: 'Phone Number', format: 'text' },
           { path: 'temporaryPassword', label: 'Temporary Password', format: 'secret' },
         ],
       },