文件系统的存储方式

core/canvas.go

@@ -12,7 +12,7 @@ type (
 		UserID    string    `json:"-"` // Not exposed in JSON responses, used internally.
 		Name      string    `json:"name"`
 		Thumbnail string    `json:"thumbnail,omitempty"`
-		Data      []byte    `json:"-"` // The full canvas data, not included in list views.
+		Data      []byte    `json:"data,omitempty"` // The full canvas data, not included in list views.
 		CreatedAt time.Time `json:"createdAt"`
 		UpdatedAt time.Time `json:"updatedAt"`
 	}