refac: APICall에 타입 지정

- 비 undefined 타입에서 ?타입 호출 제거
- API 소속 type들을 defs/API/ 로 이동
- 모든 SammoAPI, SammoRootAPI 지정

hwe/ts/components/BettingDetail.vue

@@ -129,7 +129,8 @@
 </template>
 
 <script setup lang="ts">
-import type { BettingDetailResponse, BettingInfo, ToastType } from "@/defs";
+import type { ToastType } from "@/defs";
+import type { BettingDetailResponse, BettingInfo } from "@/defs/API/Betting";
 import { SammoAPI } from "@/SammoAPI";
 import { joinYearMonth } from "@/util/joinYearMonth";
 import { parseYearMonth } from "@/util/parseYearMonth";