fix(server): regenerate missing person thumbnails (#3970)

* Regenerate missing person thumbnails

* Check for empty string instead of zero length

* Remember asset used as person face

* Define entity relation between person and asset via faceAssetId

* Typo

* Fix entity relation

* Tests

* Tests

* Fix code formatting

* Fix import path

* Fix migration

* format

* Fix entity and migration

* Linting

* Remove unneeded cast

* Conventions

* Simplify queries

* Simplify queries

* Remove unneeded typings from entity

* Remove unneeded cast

---------

Co-authored-by: Alex <alex.tran1502@gmail.com>

server/src/infra/entities/person.entity.ts

@@ -8,6 +8,7 @@ import {
   UpdateDateColumn,
 } from 'typeorm';
 import { AssetFaceEntity } from './asset-face.entity';
+import { AssetEntity } from './asset.entity';
 import { UserEntity } from './user.entity';
 
 @Entity('person')
@@ -36,6 +37,12 @@ export class PersonEntity {
   @Column({ default: '' })
   thumbnailPath!: string;
 
+  @Column({ nullable: true })
+  faceAssetId!: string | null;
+
+  @ManyToOne(() => AssetEntity, { onDelete: 'SET NULL', nullable: true })
+  faceAsset!: AssetEntity | null;
+
   @OneToMany(() => AssetFaceEntity, (assetFace) => assetFace.person)
   faces!: AssetFaceEntity[];