feat: [entertainment] 접대비 상세 조회 날짜 필터 파라미터 추가

- EntertainmentController: detail에 start_date/end_date 파라미터 전달
- EntertainmentService: getDetail 리스크/사용자분포/거래내역에 날짜 필터 적용

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

app/Http/Controllers/Api/V1/EntertainmentController.php

@@ -42,9 +42,11 @@ public function detail(Request $request): JsonResponse
         $companyType = $request->query('company_type', 'medium');
         $year = $request->query('year') ? (int) $request->query('year') : null;
         $quarter = $request->query('quarter') ? (int) $request->query('quarter') : null;
+        $startDate = $request->query('start_date');
+        $endDate = $request->query('end_date');
 
-        return ApiResponse::handle(function () use ($companyType, $year, $quarter) {
-            return $this->entertainmentService->getDetail($companyType, $year, $quarter);
+        return ApiResponse::handle(function () use ($companyType, $year, $quarter, $startDate, $endDate) {
+            return $this->entertainmentService->getDetail($companyType, $year, $quarter, $startDate, $endDate);
         }, __('message.fetched'));
     }
 }