refactor(server): rename asset stack to stack (#10828)

server/src/entities/stack.entity.ts

@@ -0,0 +1,21 @@
+import { AssetEntity } from 'src/entities/asset.entity';
+import { Column, Entity, JoinColumn, OneToMany, OneToOne, PrimaryGeneratedColumn } from 'typeorm';
+
+@Entity('asset_stack')
+export class StackEntity {
+  @PrimaryGeneratedColumn('uuid')
+  id!: string;
+
+  @OneToMany(() => AssetEntity, (asset) => asset.stack)
+  assets!: AssetEntity[];
+
+  @OneToOne(() => AssetEntity)
+  @JoinColumn()
+  //TODO: Add constraint to ensure primary asset exists in the assets array
+  primaryAsset!: AssetEntity;
+
+  @Column({ nullable: false })
+  primaryAssetId!: string;
+
+  assetCount?: number;
+}