style: add comment about auto-added mongoose timestamps

Author: Bentroen

server/src/song/entity/song.entity.ts

@@ -24,10 +24,10 @@ export class Song {
   publicId: string;
 
   @Prop({ type: MongooseSchema.Types.Date, required: true, default: Date.now })
-  createdAt: Date;
+  createdAt: Date; // Added automatically by Mongoose: https://mongoosejs.com/docs/timestamps.html
 
   @Prop({ type: MongooseSchema.Types.Date, required: true, default: Date.now })
-  updatedAt: Date;
+  updatedAt: Date; // Added automatically by Mongoose: https://mongoosejs.com/docs/timestamps.html
 
   @Prop({ type: MongooseSchema.Types.ObjectId, required: true, ref: 'User' })
   uploader: Types.ObjectId;

server/src/user/entity/user.entity.ts

@@ -71,8 +71,8 @@ export class User {
   @Prop({ type: Boolean, required: true, default: true })
   prefersDarkTheme: boolean;
 
-  createdAt: Date;
-  updatedAt: Date;
+  createdAt: Date; // Added automatically by Mongoose: https://mongoosejs.com/docs/timestamps.html
+  updatedAt: Date; // Added automatically by Mongoose: https://mongoosejs.com/docs/timestamps.html
 }
 
 export const UserSchema = SchemaFactory.createForClass(User);