add `createDate` to PartJSON

src/classes/Story.ts

@@ -56,7 +56,7 @@ export default class Story {
                     mature: "1",
                     include_deleted: "1",
                     fields:
-                        "id,title,length,createDate,modifyDate,voteCount,readCount,commentCount,url,promoted,sponsor,language,user,description,cover,highlight_colour,completed,isPaywalled,paidModel,categories,numParts,readingPosition,deleted,dateAdded,lastPublishedPart(createDate),tags,copyright,rating,story_text_url(text),,parts(id,title,voteCount,commentCount,videoId,readCount,photoUrl,modifyDate,length,voted,deleted,text_url(text),dedication,url,wordCount),isAdExempt,tagRankings",
+                        "id,title,length,createDate,modifyDate,voteCount,readCount,commentCount,url,promoted,sponsor,language,user,description,cover,highlight_colour,completed,isPaywalled,paidModel,categories,numParts,readingPosition,deleted,dateAdded,lastPublishedPart(createDate),tags,copyright,rating,story_text_url(text),,parts(id,title,voteCount,commentCount,videoId,readCount,photoUrl,createDate,modifyDate,length,voted,deleted,text_url(text),dedication,url,wordCount),isAdExempt,tagRankings",
                 }),
             },
         )).json();

src/types.d.ts

@@ -48,6 +48,7 @@ export interface Part {
     id: number;
     title: string;
     url: string;
+    createDate: string;
     modifyDate: string;
     length: number;
     videoId: string;