[bug] Make "issued_by" field read-only (#11816)

* Fix "issued_by" for BuildOrder model

- Automatically capture user information
- Mark field as read-only
- Remove from frontend forms

* Add "created_by" property

* Update unit test

* Update API and CHANGELOG

* Further adjustments to unit tests

src/frontend/src/forms/BuildForms.tsx

@@ -8,7 +8,6 @@ import {
   IconList,
   IconSitemap,
   IconTruckDelivery,
-  IconUser,
   IconUsersGroup
 } from '@tabler/icons-react';
 import { useEffect, useMemo, useState } from 'react';
@@ -128,12 +127,6 @@ export function useBuildOrderFields({
       link: {
         icon: <IconLink />
       },
-      issued_by: {
-        icon: <IconUser />,
-        filters: {
-          is_active: true
-        }
-      },
       responsible: {
         icon: <IconUsersGroup />,
         filters: {