feat:법인카드 결제 기능 개선 (동적 항목 입력, 선불결제→결제 명칭 변경)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Controllers/Finance/CorporateCardController.php

@@ -255,34 +255,40 @@ public function summary(): JsonResponse
                 'cardUsages' => $usageResult['perCard'],
                 'prepaidAmount' => (int) $prepayment->amount,
                 'prepaidMemo' => $prepayment->memo ?? '',
+                'prepaidItems' => $prepayment->items ?? [],
             ],
         ]);
     }
 
     /**
-     * 선불결제 금액 수정
+     * 결제 내역 수정
      */
     public function updatePrepayment(Request $request): JsonResponse
     {
         $request->validate([
-            'amount' => 'required|integer|min:0',
-            'memo' => 'nullable|string|max:200',
+            'items' => 'present|array',
+            'items.*.date' => 'required|date',
+            'items.*.amount' => 'required|integer|min:0',
+            'items.*.description' => 'nullable|string|max:200',
         ]);
 
         $tenantId = session('selected_tenant_id', 1);
         $yearMonth = Carbon::now()->format('Y-m');
 
+        $items = collect($request->input('items', []))->filter(fn($item) => ($item['amount'] ?? 0) > 0)->values()->toArray();
+        $amount = collect($items)->sum('amount');
+
         $prepayment = CorporateCardPrepayment::updateOrCreate(
             ['tenant_id' => $tenantId, 'year_month' => $yearMonth],
-            ['amount' => $request->input('amount'), 'memo' => $request->input('memo')]
+            ['amount' => $amount, 'items' => $items, 'memo' => null]
         );
 
         return response()->json([
             'success' => true,
-            'message' => '선불결제 금액이 저장되었습니다.',
+            'message' => '결제 내역이 저장되었습니다.',
             'data' => [
                 'amount' => (int) $prepayment->amount,
-                'memo' => $prepayment->memo ?? '',
+                'items' => $prepayment->items ?? [],
             ],
         ]);
     }