[#60] ✨ add common post types

Author: KingNono1030

src/types/post.types.d.ts

@@ -0,0 +1,16 @@
+// 게시글 관련 타입
+type PostType = 'COMMUNITY' | 'TEAM' | 'PORTFOLIO' | 'PROJECT'
+
+// 게시글 기본 구조
+interface PostBaseBody extends TimeStamps {
+  id: Id
+  member: MemberInfo // 게시글 작성자
+  views: number
+  answers: number
+  likes: number
+}
+
+interface LikeRequest {
+  likeId: Id
+  likeType: PostType
+}