fix(departments): fix contact info editing, cache invalidation, and pivot data display

- User model: add missing pivot columns (service_email, service_phone, cabinet, sort) to departments_work() and departments_teach() withPivot
- ListDepartmentWorkersAction/TeachersAction: fix where() to wherePivot() for position filters
- Dashboard Workers/Teachers Index.vue: display validation errors in add/edit modals
- Dashboard Workers/Teachers Index.vue: add links to client person pages
- DepartmentCacheService: clear person_* cache when department data changes
- Filament WorkersRelationManager/TeachersRelationManager: fix pivot columns in table (pivot.position etc), add cache clearing on edit/detach/bulk actions

app/Containers/Dashboard/Actions/Departments/ListDepartmentTeachersAction.php

@@ -17,7 +17,7 @@ class ListDepartmentTeachersAction
 
         // Фильтр по должности
         if (!empty($filters['position'])) {
-            $query->where('teaching_position', 'like', '%' . $filters['position'] . '%');
+            $query->wherePivot('teaching_position', 'like', '%' . $filters['position'] . '%');
         }
 
         $teachers = $query->orderBy('teachers_departments.sort')->paginate(20)->withQueryString();

app/Containers/Dashboard/Actions/Departments/ListDepartmentWorkersAction.php

@@ -18,7 +18,7 @@ class ListDepartmentWorkersAction
 
         // Фильтр по должности
         if (!empty($filters['position'])) {
-            $query->where('position', 'like', '%' . $filters['position'] . '%');
+            $query->wherePivot('position', 'like', '%' . $filters['position'] . '%');
         }
 
         $workers = $query->orderBy('workers_departments.sort')->paginate(20)->withQueryString();