feat: [client] Client API 사업자 정보 필드 및 toggle 버그 수정

- business_no, business_type, business_item 필드 추가
- toggle 로직 수정: boolean 캐스팅 호환 (is_active === 'Y' → !is_active)

app/Http/Requests/Client/ClientStoreRequest.php

@@ -21,6 +21,9 @@ public function rules(): array
             'phone' => 'nullable|string|max:20',
             'email' => 'nullable|email|max:100',
             'address' => 'nullable|string|max:255',
+            'business_no' => 'nullable|string|max:20',
+            'business_type' => 'nullable|string|max:50',
+            'business_item' => 'nullable|string|max:100',
             'is_active' => 'nullable|in:Y,N',
         ];
     }