[refactor] 레전드 리팩토링 시즌 2

FLINT/Data/Sources/DTO/User/NicknameCheckDTO.swift → FLINT/Data/Sources/DTO/Auth/NicknameCheckDTO.swift

@@ -16,7 +16,7 @@ public struct NicknameCheckDTO: Codable {
 extension NicknameCheckDTO {
     public var isAvailable: Bool {
         get throws {
-            return try unwrap(available, key: CodingKeys.available)
+            return try unwrap(available)
         }
     }
 }

FLINT/Data/Sources/DTO/Auth/SignupDTO.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  SignupDTO.swift
 //  Data
 //
 //  Created by 김호성 on 2026.01.21.
@@ -19,16 +19,16 @@ extension SignupDTO {
     public var loginEntity: LoginEntity {
         get throws {
             return try LoginEntity(
-                accessToken: unwrap(accessToken, key: CodingKeys.accessToken),
-                refreshToken: unwrap(refreshToken, key: CodingKeys.refreshToken),
-                userId: unwrap(userId, key: CodingKeys.userId)
+                accessToken: unwrap(accessToken),
+                refreshToken: unwrap(refreshToken),
+                userId: unwrap(userId)
             )
         }
     }
 
     public var userIdValue: String {
         get throws {
-            return try unwrap(userId, key: CodingKeys.userId)
+            return try unwrap(userId)
         }
     }
 }

FLINT/Data/Sources/DTO/Auth/SignupRequestDTO.swift

@@ -1,13 +1,13 @@
 //
-//  File.swift
+//  SignupRequestDTO.swift
 //  Data
 //
 //  Created by 김호성 on 2026.01.23.
 //
 
 import Foundation
 
-import Domain
+import Entity
 
 public struct SignupRequestDTO: Codable {
     public let tempToken: String

FLINT/Data/Sources/DTO/Auth/SocialVerifyRequestDTO.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  SocialVerifyRequestDTO.swift
 //  Data
 //
 //  Created by 김호성 on 2026.01.23.

FLINT/Data/Sources/DTO/Auth/SocialVerifyResponseDTO.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  SocialVerifyResponseDTO.swift
 //  Data
 //
 //  Created by 김호성 on 2026.01.23.
@@ -16,15 +16,6 @@ public struct SocialVerifyResponseDTO: Codable {
     public let userId: String?
     public let nickname: String?
     public let tempToken: String?
-
-    public init(isRegistered: Bool, accessToken: String?, refreshToken: String?, userId: String?, nickname: String?, tempToken: String?) {
-        self.isRegistered = isRegistered
-        self.accessToken = accessToken
-        self.refreshToken = refreshToken
-        self.userId = userId
-        self.nickname = nickname
-        self.tempToken = tempToken
-    }
 }
 
 extension SocialVerifyResponseDTO {

FLINT/Data/Sources/DTO/Base/BaseResponse.swift

@@ -1,5 +1,5 @@
 //
-//  BaseResponseDTO.swift
+//  BaseResponse.swift
 //  FLINT
 //
 //  Created by 진소은 on 1/10/26.

FLINT/Data/Sources/DTO/Base/Unwrap.swift

@@ -1,5 +1,5 @@
 //
-//  File.swift
+//  Unwrap.swift
 //  Data
 //
 //  Created by 김호성 on 2026.01.21.
@@ -21,12 +21,11 @@ public enum DTOMappingError: Error, LocalizedError {
     }
 }
 
-public func unwrap<T>(
-    _ value: T?,
-    key: CodingKey? = nil
-) throws -> T {
-    guard let value else {
-        throw DTOMappingError.missingField(key?.stringValue)
+extension Decodable {
+    public func unwrap<T>(_ value: T?) throws -> T {
+        guard let value else {
+            throw DTOMappingError.missingField("\(self)")
+        }
+        return value
     }
-    return value
 }

FLINT/Data/Sources/DTO/Collection/CollectionDTO.swift

@@ -0,0 +1,45 @@
+//
+//  CollectionDTO.swift
+//  Data
+//
+//  Created by 김호성 on 2026.02.09.
+//
+
+import Foundation
+
+import Entity
+
+public struct CollectionDTO: Codable {
+    public let id: String?
+    public let thumbnailUrl: String?
+    public let title: String?
+    public let description: String?
+    public let imageList: [String]?
+    public let bookmarkCount: Int?
+    public let isBookmarked: Bool?
+    public let userId: String?
+    public let nickname: String?
+    public let profileImageUrl: String?
+}
+
+extension CollectionDTO {
+    public var collectionEntity: CollectionEntity {
+        get throws {
+            return try CollectionEntity(
+                id: unwrap(id),
+                thumbnailUrl: URL(string: thumbnailUrl ?? ""),
+                title: title ?? "",
+                description: description ?? "",
+                imageList: imageList?.compactMap({ URL(string: $0) }) ?? [],
+                bookmarkCount: bookmarkCount ?? 0,
+                isBookmarked: isBookmarked ?? false,
+                user: UserProfileEntity(
+                    id: unwrap(userId),
+                    nickname: nickname ?? "",
+                    profileImageUrl: URL(string: profileImageUrl ?? ""),
+                    role: .unknown
+                )
+            )
+        }
+    }
+}

FLINT/Data/Sources/DTO/Collection/CollectionDetailDTO.swift

@@ -10,41 +10,25 @@ import Foundation
 import Entity
 
 public struct CollectionDetailDTO: Codable {
-
-    public let status: Int?
-    public let message: String?
-    public let data: DataDTO?
-
-    public init(status: Int?, message: String?, data: DataDTO?) {
-        self.status = status
-        self.message = message
-        self.data = data
-    }
+    public let id: String?
+    public let title: String?
+    public let description: String?
+    public let thumbnailUrl: String?
+    public let createdAt: String?
+    public let isBookmarked: Bool?
+    public let author: AuthorDTO?
+    public let contents: [ContentDTO]?
 }
 
-// MARK: - Nested DTOs
-
-public extension CollectionDetailDTO {
-
-    struct DataDTO: Codable {
-        public let id: String?
-        public let title: String?
-        public let description: String?
-        public let thumbnailUrl: String?
-        public let createdAt: String?
-        public let isBookmarked: Bool?
-        public let author: AuthorDTO?
-        public let contents: [ContentDTO]?
-    }
-
-    struct AuthorDTO: Codable {
+extension CollectionDetailDTO {
+    public struct AuthorDTO: Codable {
         public let id: String?
         public let nickname: String?
         public let profileImageUrl: String?
         public let userRole: String?
     }
-
-    struct ContentDTO: Codable {
+    
+    public struct ContentDTO: Codable {
         public let id: String?
         public let title: String?
         public let imageUrl: String?
@@ -57,7 +41,7 @@ public extension CollectionDetailDTO {
     }
 }
 
-extension CollectionDetailDTO.DataDTO {
+extension CollectionDetailDTO {
     public var entity: CollectionDetailEntity {
         get throws {
             return try CollectionDetailEntity(
@@ -67,30 +51,30 @@ extension CollectionDetailDTO.DataDTO {
                 thumbnailUrl: URL(string: thumbnailUrl ?? ""),
                 createdAt: createdAt ?? "",
                 isBookmarked: isBookmarked ?? false,
-                author: try author?.entity,
-                contents: try (contents ?? []).map { try $0.entity }
+                author: unwrap(author?.entity),
+                contents: contents?.map { try $0.entity } ?? []
             )
         }
     }
 }
 
 extension CollectionDetailDTO.AuthorDTO {
-    public var entity: CollectionAuthorEntity {
+    public var entity: UserProfileEntity {
         get throws {
-            return try CollectionAuthorEntity(
+            return try UserProfileEntity(
                 id: unwrap(id),
                 nickname: nickname ?? "",
                 profileImageUrl: URL(string: profileImageUrl ?? ""),
-                userRole: userRole ?? ""
+                role: UserRole(rawValue: userRole ?? "") ?? .unknown
             )
         }
     }
 }
 
 extension CollectionDetailDTO.ContentDTO {
-    public var entity: CollectionContentEntity {
+    public var entity: CollectionDetailEntity.CollectionContentEntity {
         get throws {
-            return try CollectionContentEntity(
+            return try CollectionDetailEntity.CollectionContentEntity(
                 id: unwrap(id),
                 title: title ?? "",
                 imageUrl: URL(string: imageUrl ?? ""),