fix: [approval] 연차사용촉진 통지서 Employee 모델 속성 수정

- departments->first() → department? (BelongsTo 단수 관계)
- $emp->name → $emp->display_name
- $emp->position → $emp->position_key
- $emp->id → $emp->user_id
- LeaveService에 department eager load 추가

app/Services/HR/LeaveService.php

@@ -787,7 +787,7 @@ public function getActiveEmployees(): \Illuminate\Database\Eloquent\Collection
         $tenantId = session('selected_tenant_id');
 
         return \App\Models\HR\Employee::query()
-            ->with('user:id,name')
+            ->with(['user:id,name', 'department:id,name'])
             ->forTenant($tenantId)
             ->activeEmployees()
             ->where(function ($q) {

resources/views/approvals/partials/_leave-promotion-1st-form.blade.php

@@ -27,10 +27,10 @@
                                 class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
                             <option value="">-- 직원 선택 --</option>
                             @foreach($employees as $emp)
-                                <option value="{{ $emp->id }}"
+                                <option value="{{ $emp->user_id }}"
-                                        data-department="{{ $emp->departments->first()?->name ?? '' }}"
+                                        data-department="{{ $emp->department?->name ?? '' }}"
-                                        data-position="{{ $emp->position ?? '' }}">
+                                        data-position="{{ $emp->position_key ?? '' }}">
-                                    {{ $emp->name }} {{ $emp->departments->first()?->name ? '('.$emp->departments->first()->name.')' : '' }}
+                                    {{ $emp->display_name }} {{ $emp->department?->name ? '('.$emp->department->name.')' : '' }}
                                 </option>
                             @endforeach
                         </select>

resources/views/approvals/partials/_leave-promotion-2nd-form.blade.php

@@ -32,10 +32,10 @@
                                 class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-blue-500">
                             <option value="">-- 직원 선택 --</option>
                             @foreach($employees as $emp)
-                                <option value="{{ $emp->id }}"
+                                <option value="{{ $emp->user_id }}"
-                                        data-department="{{ $emp->departments->first()?->name ?? '' }}"
+                                        data-department="{{ $emp->department?->name ?? '' }}"
-                                        data-position="{{ $emp->position ?? '' }}">
+                                        data-position="{{ $emp->position_key ?? '' }}">
-                                    {{ $emp->name }} {{ $emp->departments->first()?->name ? '('.$emp->departments->first()->name.')' : '' }}
+                                    {{ $emp->display_name }} {{ $emp->department?->name ? '('.$emp->department->name.')' : '' }}
                                 </option>
                             @endforeach
                         </select>