[Feat]: 카카오 로그인 domain 생성

domain/src/main/kotlin/ac/dnd/bookkeeping/android/domain/model/social_login/UserModel.kt

@@ -0,0 +1,7 @@
+package ac.dnd.bookkeeping.android.domain.model.social_login
+
+class UserModel(
+    val socialId: Long,
+    val email: String,
+    val name: String
+)

domain/src/main/kotlin/ac/dnd/bookkeeping/android/domain/repository/social_login/SocialLoginRepository.kt

@@ -0,0 +1,9 @@
+package ac.dnd.bookkeeping.android.domain.repository.social_login
+
+import ac.dnd.bookkeeping.android.domain.model.social_login.UserModel
+
+interface SocialLoginRepository {
+    suspend fun login(): Result<String>
+    suspend fun logout(): Result<Boolean>
+    suspend fun getUserInfo(): Result<UserModel>
+}