fix: remove obsolete attendancePolicy relationship calls and update 13th month calculation rules

app/Http/Controllers/EmployeeController.php

@@ -462,7 +462,7 @@ class EmployeeController extends Controller
             }
 
             // Load user with employee relationships
-            $user = User::with(['employee.branch', 'employee.department', 'employee.designation', 'employee.shift', 'employee.attendancePolicy', 'employee.documents.documentType'])
+            $user = User::with(['employee.branch', 'employee.department', 'employee.designation', 'employee.shift', 'employee.documents.documentType'])
                 ->where('id', $employee->user_id)
                 ->first();
 
@@ -1149,7 +1149,7 @@ class EmployeeController extends Controller
     {
         if (Auth::user()->can('export-employee')) {
             try {
-                $employees = User::with(['employee.branch', 'employee.department', 'employee.designation', 'employee.shift', 'employee.attendancePolicy'])
+                $employees = User::with(['employee.branch', 'employee.department', 'employee.designation', 'employee.shift'])
                     ->where('type', 'employee')
                     ->where(function ($q) {
                         if (Auth::user()->can('manage-any-employees')) {
@@ -1182,7 +1182,6 @@ class EmployeeController extends Controller
                         'Gender',
                         'Shift',
                         'Basic Salary',
-                        'Attedance Policy',
                         'Employement Type',
                         'Employement Status',
                         'City',
@@ -1212,7 +1211,6 @@ class EmployeeController extends Controller
                                 $employee->gender ?? '',
                                 $employee->shift->name ?? '',
                                 $employee->base_salary ?? '',
-                                $employee->attendancePolicy->name ?? '',
                                 $employee->employment_type ?? '',
                                 $employee->employee_status ?? 'active',
                                 $employee->city ?? '',