[INIT] 폴더 도메인 추가 및 파일 도메인 수정

src/main/java/com/tiki/server/document/entity/Document.java

@@ -35,6 +35,10 @@ public class Document extends BaseTime {
 
 	private String fileUrl;
 
+	private Long folderId;
+
+	private double capacity;
+
 	@ManyToOne(fetch = LAZY)
 	@JoinColumn(name = "block_id")
 	private TimeBlock timeBlock;

src/main/java/com/tiki/server/document/service/DocumentService.java

@@ -1,9 +1,6 @@
 package com.tiki.server.document.service;
 
-import static com.tiki.server.document.message.ErrorCode.INVALID_DOCUMENT;
-
 import java.util.List;
-import java.util.Objects;
 
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -13,7 +10,6 @@
 import com.tiki.server.document.adapter.DocumentFinder;
 import com.tiki.server.document.dto.response.DocumentsGetResponse;
 import com.tiki.server.document.entity.Document;
-import com.tiki.server.document.exception.DocumentException;
 import com.tiki.server.memberteammanager.adapter.MemberTeamManagerFinder;
 import com.tiki.server.memberteammanager.entity.MemberTeamManager;
 

src/main/java/com/tiki/server/folder/entity/Folder.java

@@ -0,0 +1,40 @@
+package com.tiki.server.folder.entity;
+
+import static jakarta.persistence.GenerationType.IDENTITY;
+
+import com.tiki.server.common.entity.BaseTime;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor
+public class Folder extends BaseTime {
+
+	@Id
+	@GeneratedValue(strategy = IDENTITY)
+	private Long id;
+
+	private String name;
+
+	private String path;
+
+	private long teamId;
+
+	public Folder(String name, Folder parentFolder, long teamId) {
+		this.name = name;
+		this.path = generatePath(parentFolder);
+		this.teamId = teamId;
+	}
+
+	private String generatePath(Folder parentFolder) {
+		if (parentFolder == null) {
+			return "";
+		}
+		return parentFolder.getPath() + "/" + parentFolder.getId();
+	}
+}